armdb 0.9.0

sharded bitcask key-value storage optimized for NVMe
Documentation 
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# ArmDB adapter A/B benchmark acceptance evidence

Date: 2026-08-03
Host: Linux (`x86_64-unknown-linux-gnu`), 16 online CPUs
Benchmark CPU set: `0,1,2,3,4,5,6,7` (first eight CPUs in `sched_getaffinity(0)`)
Rust compiler: `rustc 1.97.0 (2d8144b78 2026-07-07)`
Full HEAD: `e6c0410e3110e03ea246ef24f6896f05457e12a9`
Harness blob: `bde6e892159b639e340d399821b6036143332e76`
Target triple: `x86_64-unknown-linux-gnu`
Features (both sides): `armour, bytemuck-codec, parking_lot, rapira-codec, replication, rpc, schema, typed-tree, var-collections`
Host cores reported by runner: `16`

## Method and acceptance gate

The runner built detached old/new clones from the same committed HEAD and executed both `write` and `read` groups with ten repetitions per side, using the fixed CPU set above. It records realised order, raw repetition data, and the harness blob. The harness protocol uses `TARGET_APPEND_BYTES=32 MiB`, `WRITE_BUFFER_BYTES=64 MiB`, `MAX_FILE_BYTES=256 MiB`, `READ_DATASET_SIZE=50,000`, deterministic `LCG_SEED=0x4d595df4d0f33173`, and the operation counts encoded by each scenario. A scenario contributes a median only when every repetition is valid; the self-consistency gate requires ten valid samples per side and absolute median delta at most 3% for every scenario.

The final run exited zero with `whole_run_verdict: PASS`; all 26 scenarios had ten valid samples per side and absolute deltas no greater than 3%. Earlier identical pre-correction attempts were retained separately in the task report as host-drift diagnostics; no threshold was weakened.

## Self-consistency summary

| Scenario | Old median ns/op | New median ns/op | Delta | Verdict |
| --- | ---: | ---: | ---: | --- |
| `write/const_tree/4` | 274.31244307750995 | 275.59654292730613 | 0.4681157862872931% | PASS |
| `write/const_tree/8` | 467.2579161381691 | 465.84996292569883 | -0.30132249531625854% | PASS |
| `write/typed_tree/4` | 364.62788964420184 | 361.2913741259542 | -0.9150467128291817% | PASS |
| `write/typed_tree/8` | 588.7908176548679 | 592.1159405362721 | 0.5647375573294644% | PASS |
| `write/typed_map/4` | 396.39692338723523 | 403.6590634691752 | 1.8320374486977764% | PASS |
| `write/typed_map/8` | 1083.174544523409 | 1091.3054053512778 | 0.750651025633764% | PASS |
| `write/var_map/4` | 419.23774575252844 | 411.25216545946125 | -1.9047856196090174% | PASS |
| `write/var_map/8` | 1074.6736723078975 | 1069.578196975766 | -0.4741416360548478% | PASS |
| `read/typed_tree/get` | 189.89888 | 190.78732 | 0.4678489941594144% | PASS |
| `read/typed_tree/range16` | 712.0209 | 708.1667 | -0.5413043353081348% | PASS |
| `read/typed_tree/range512` | 15453.453333333335 | 15437.323333333334 | -0.10437796427811286% | PASS |
| `read/typed_tree/keys512` | 7954.446666666667 | 7973.115 | 0.23469053368052606% | PASS |
| `read/typed_tree/page16` | 877.566 | 857.892 | -2.2418826618168852% | PASS |
| `read/typed_tree/page512` | 28796.993333333332 | 28408.098333333335 | -1.3504708477667382% | PASS |
| `read/zero_map/get` | 46.3252475 | 46.4543625 | 0.2787141072478905% | PASS |
| `read/zero_map/range16` | 6486.1057 | 6407.2216 | -1.2162012715889015% | PASS |
| `read/zero_map/range512` | 45071.75833333333 | 44914.763333333336 | -0.34832233266544055% | PASS |
| `read/zero_map/keys512` | 16175.961666666666 | 16074.153333333334 | -0.6293804067496356% | PASS |
| `read/zero_map/page16` | 2162.6558 | 2152.4997000000003 | -0.4696124089649256% | PASS |
| `read/zero_map/page512` | 49355.323333333334 | 48964.236666666664 | -0.7923900407365791% | PASS |
| `read/var_typed_tree/get` | 829.3703575 | 830.5095699999999 | 0.1373587191413339% | PASS |
| `read/var_typed_tree/range16` | 10743.5248 | 10772.9451 | 0.27384215653323274% | PASS |
| `read/var_typed_tree/range512` | 329672.9816666667 | 330976.82666666666 | 0.39549646847258924% | PASS |
| `read/var_typed_tree/keys512` | 312140.9633333333 | 309895.105 | -0.7195013141979012% | PASS |
| `read/var_typed_tree/page16` | 11224.3738 | 11400.4898 | 1.5690496693900213% | PASS |
| `read/var_typed_tree/page512` | 327815.92833333334 | 327734.095 | -0.02496319619044174% | PASS |

The complete passing capture (including every repetition and realised order) is preserved at `/tmp/armdb-ab-self.txt` and embedded below.

<details>
<summary>Complete /tmp/armdb-ab-self.txt capture</summary>

```text
Cloning into '/tmp/armdb-ab.yszzwk/old'...
done.
Cloning into '/tmp/armdb-ab.yszzwk/new'...
done.
HEAD is now at e6c0410e fix(armdb): satisfy harness example clippy
HEAD is now at e6c0410e fix(armdb): satisfy harness example clippy
   Compiling proc-macro2 v1.0.106
   Compiling unicode-ident v1.0.24
   Compiling quote v1.0.46
   Compiling cfg-if v1.0.4
   Compiling libc v0.2.186
   Compiling crossbeam-utils v0.8.22
   Compiling serde_core v1.0.228
   Compiling pin-project-lite v0.2.17
   Compiling serde v1.0.228
   Compiling memchr v2.8.3
   Compiling once_cell v1.21.4
   Compiling bitflags v2.13.1
   Compiling ident_case v1.0.1
   Compiling parking v2.2.1
   Compiling strsim v0.11.1
   Compiling cfg_aliases v0.2.2
   Compiling equivalent v1.0.2
   Compiling smallvec v1.15.2
   Compiling winnow v1.0.4
   Compiling futures-core v0.3.32
   Compiling hashbrown v0.17.1
   Compiling scopeguard v1.2.0
   Compiling lock_api v0.4.14
   Compiling futures-io v0.3.32
   Compiling tracing-core v0.1.36
   Compiling zerocopy v0.8.54
   Compiling futures-sink v0.3.32
   Compiling toml_datetime v1.1.1+spec-1.1.0
   Compiling bytes v1.12.1
   Compiling autocfg v1.5.1
   Compiling slab v0.4.12
   Compiling rustversion v1.0.23
   Compiling futures-task v0.3.32
   Compiling local-event v0.1.2
   Compiling rustix v1.1.4
   Compiling zmij v1.0.23
   Compiling linux-raw-sys v0.12.1
   Compiling version_check v0.9.5
   Compiling num-traits v0.2.19
   Compiling indexmap v2.14.0
   Compiling find-msvc-tools v0.1.9
   Compiling concurrent-queue v2.5.0
   Compiling event-listener v5.4.1
   Compiling serde_json v1.0.150
   Compiling shlex v2.0.1
   Compiling syn v2.0.119
   Compiling slotmap v1.1.1
   Compiling cc v1.2.67
   Compiling io-uring v0.7.13
   Compiling itoa v1.0.18
   Compiling either v1.16.0
   Compiling crossbeam-queue v0.3.13
   Compiling spin v0.9.9
   Compiling compio-driver v0.12.4
   Compiling nix v0.31.3
   Compiling toml_parser v1.1.2+spec-1.1.0
   Compiling compio-send-wrapper v0.7.2
   Compiling pastey v0.2.3
   Compiling rand_core v0.10.1
   Compiling getrandom v0.4.3
   Compiling rust_decimal v1.42.1
   Compiling parking_lot_core v0.9.12
   Compiling flume v0.12.0
   Compiling time-core v0.1.9
   Compiling crossbeam-epoch v0.9.20
   Compiling mod_use v0.2.3
   Compiling powerfmt v0.2.0
   Compiling num-conv v0.2.2
   Compiling thiserror v2.0.18
   Compiling scoped-tls v1.0.1
   Compiling regex-syntax v0.8.11
   Compiling xxhash-rust v0.8.17
   Compiling toml_edit v0.25.13+spec-1.1.0
   Compiling crossbeam-deque v0.8.7
   Compiling prettyplease v0.2.37
   Compiling data-encoding v2.11.0
   Compiling cpufeatures v0.3.0
   Compiling uuid v1.24.0
   Compiling chacha20 v0.10.1
   Compiling rayon-core v1.13.0
   Compiling log v0.4.33
   Compiling socket2 v0.6.5
   Compiling heck v0.5.0
   Compiling simdutf8 v0.1.5
   Compiling proc-macro-crate v3.5.0
   Compiling parking_lot v0.12.5
   Compiling rand v0.10.2
   Compiling const-fnv1a-hash v1.1.0
   Compiling anstyle v1.0.14
   Compiling generator v0.8.9
   Compiling alloca v0.4.0
   Compiling clap_lex v1.1.0
   Compiling crc32fast v1.5.0
   Compiling unicode-xid v0.2.6
   Compiling lazy_static v1.5.0
   Compiling ciborium-io v0.2.2
   Compiling deranged v0.5.8
   Compiling plotters-backend v0.3.7
   Compiling sharded-slab v0.1.7
   Compiling clap_builder v4.6.2
   Compiling tracing-log v0.2.0
   Compiling itertools v0.13.0
   Compiling regex-automata v0.4.16
   Compiling plotters-svg v0.3.7
   Compiling rapidhash v4.5.1
   Compiling event-listener-strategy v0.5.4
   Compiling thread_local v1.1.10
   Compiling cast v0.3.0
   Compiling nu-ansi-term v0.50.3
   Compiling foldhash v0.2.0
   Compiling same-file v1.0.6
   Compiling walkdir v2.5.0
   Compiling metrics v0.24.6
   Compiling async-broadcast v0.7.2
   Compiling rayon v1.12.0
   Compiling plotters v0.3.7
   Compiling time v0.3.53
   Compiling quick_cache v0.7.0
   Compiling darling_core v0.23.0
   Compiling ctrlc v3.5.2
   Compiling criterion-plot v0.8.2
   Compiling seize v0.5.1
   Compiling page_size v0.6.0
   Compiling anes v0.1.6
   Compiling clap v4.6.2
   Compiling fastrand v2.4.1
   Compiling rtrb v0.3.4
   Compiling oorandom v11.1.5
   Compiling serde_derive v1.0.228
   Compiling tracing-attributes v0.1.31
   Compiling futures-macro v0.3.32
   Compiling zerocopy-derive v0.8.54
   Compiling bytemuck_derive v1.11.0
   Compiling thiserror-impl v2.0.18
   Compiling rapira-derive v0.14.1 (/tmp/armdb-ab.yszzwk/old/rapira-derive)
   Compiling data-encoding-macro-internal v0.1.18
   Compiling strum_macros v0.28.0
   Compiling data-encoding-macro v0.1.20
   Compiling matchers v0.2.0
   Compiling futures-util v0.3.32
   Compiling derive_more-impl v2.1.1
   Compiling darling_macro v0.23.0
   Compiling tracing v0.1.44
   Compiling darling v0.23.0
   Compiling bytemuck v1.25.1
   Compiling armour-derive v0.28.3 (/tmp/armdb-ab.yszzwk/old/armour-derive)
   Compiling compio-log v0.2.0
   Compiling compio-executor v0.1.3
   Compiling compio-macros v0.2.0
   Compiling bon-macros v3.9.3
   Compiling tracing-subscriber v0.3.23
   Compiling regex v1.13.1
   Compiling tempfile v3.27.0
   Compiling strum v0.28.0
   Compiling derive_more v2.1.1
   Compiling loom v0.7.2
   Compiling arrayvec v0.7.8
   Compiling tinytemplate v1.2.1
   Compiling compio-buf v0.8.3
   Compiling synchrony v0.1.9
   Compiling thin-cell v0.2.1
   Compiling compio-io v0.10.1
   Compiling compio-signal v0.10.0
   Compiling armour-typ v0.4.1 (/tmp/armdb-ab.yszzwk/old/armour-typ)
   Compiling bon v3.9.3
   Compiling compio-runtime v0.12.3
   Compiling half v2.7.1
   Compiling rend v0.5.4
   Compiling rapira v0.13.7 (/tmp/armdb-ab.yszzwk/old/rapira)
   Compiling compio-net v0.12.2
   Compiling ciborium-ll v0.2.2
   Compiling ciborium v0.2.2
   Compiling criterion v0.8.2
   Compiling compio v0.19.1
   Compiling armour-core v0.4.2 (/tmp/armdb-ab.yszzwk/old/armour-core)
   Compiling armour-rpc v0.3.1 (/tmp/armdb-ab.yszzwk/old/armour-rpc)
   Compiling armdb v0.7.3 (/tmp/armdb-ab.yszzwk/old/armdb)
    Finished `release` profile [optimized] target(s) in 15.15s
   Compiling proc-macro2 v1.0.106
   Compiling quote v1.0.46
   Compiling unicode-ident v1.0.24
   Compiling cfg-if v1.0.4
   Compiling libc v0.2.186
   Compiling crossbeam-utils v0.8.22
   Compiling serde_core v1.0.228
   Compiling pin-project-lite v0.2.17
   Compiling serde v1.0.228
   Compiling memchr v2.8.3
   Compiling once_cell v1.21.4
   Compiling parking v2.2.1
   Compiling bitflags v2.13.1
   Compiling ident_case v1.0.1
   Compiling cfg_aliases v0.2.2
   Compiling strsim v0.11.1
   Compiling futures-core v0.3.32
   Compiling winnow v1.0.4
   Compiling equivalent v1.0.2
   Compiling smallvec v1.15.2
   Compiling hashbrown v0.17.1
   Compiling scopeguard v1.2.0
   Compiling futures-sink v0.3.32
   Compiling tracing-core v0.1.36
   Compiling lock_api v0.4.14
   Compiling bytes v1.12.1
   Compiling slab v0.4.12
   Compiling zerocopy v0.8.54
   Compiling autocfg v1.5.1
   Compiling futures-io v0.3.32
   Compiling toml_datetime v1.1.1+spec-1.1.0
   Compiling futures-task v0.3.32
   Compiling rustversion v1.0.23
   Compiling zmij v1.0.23
   Compiling local-event v0.1.2
   Compiling rustix v1.1.4
   Compiling serde_json v1.0.150
   Compiling num-traits v0.2.19
   Compiling linux-raw-sys v0.12.1
   Compiling shlex v2.0.1
   Compiling indexmap v2.14.0
   Compiling find-msvc-tools v0.1.9
   Compiling concurrent-queue v2.5.0
   Compiling event-listener v5.4.1
   Compiling version_check v0.9.5
   Compiling cc v1.2.67
   Compiling io-uring v0.7.13
   Compiling syn v2.0.119
   Compiling itoa v1.0.18
   Compiling slotmap v1.1.1
   Compiling either v1.16.0
   Compiling crossbeam-queue v0.3.13
   Compiling spin v0.9.9
   Compiling toml_parser v1.1.2+spec-1.1.0
   Compiling nix v0.31.3
   Compiling compio-driver v0.12.4
   Compiling compio-send-wrapper v0.7.2
   Compiling parking_lot_core v0.9.12
   Compiling rand_core v0.10.1
   Compiling getrandom v0.4.3
   Compiling pastey v0.2.3
   Compiling rust_decimal v1.42.1
   Compiling flume v0.12.0
   Compiling mod_use v0.2.3
   Compiling crossbeam-epoch v0.9.20
   Compiling time-core v0.1.9
   Compiling num-conv v0.2.2
   Compiling thiserror v2.0.18
   Compiling powerfmt v0.2.0
   Compiling regex-syntax v0.8.11
   Compiling toml_edit v0.25.13+spec-1.1.0
   Compiling scoped-tls v1.0.1
   Compiling data-encoding v2.11.0
   Compiling crossbeam-deque v0.8.7
   Compiling cpufeatures v0.3.0
   Compiling uuid v1.24.0
   Compiling prettyplease v0.2.37
   Compiling xxhash-rust v0.8.17
   Compiling chacha20 v0.10.1
   Compiling rayon-core v1.13.0
   Compiling simdutf8 v0.1.5
   Compiling log v0.4.33
   Compiling socket2 v0.6.5
   Compiling proc-macro-crate v3.5.0
   Compiling heck v0.5.0
   Compiling generator v0.8.9
   Compiling rand v0.10.2
   Compiling alloca v0.4.0
   Compiling parking_lot v0.12.5
   Compiling clap_lex v1.1.0
   Compiling anstyle v1.0.14
   Compiling lazy_static v1.5.0
   Compiling crc32fast v1.5.0
   Compiling plotters-backend v0.3.7
   Compiling deranged v0.5.8
   Compiling unicode-xid v0.2.6
   Compiling const-fnv1a-hash v1.1.0
   Compiling ciborium-io v0.2.2
   Compiling plotters-svg v0.3.7
   Compiling clap_builder v4.6.2
   Compiling sharded-slab v0.1.7
   Compiling regex-automata v0.4.16
   Compiling tracing-log v0.2.0
   Compiling itertools v0.13.0
   Compiling rapidhash v4.5.1
   Compiling event-listener-strategy v0.5.4
   Compiling thread_local v1.1.10
   Compiling nu-ansi-term v0.50.3
   Compiling same-file v1.0.6
   Compiling cast v0.3.0
   Compiling foldhash v0.2.0
   Compiling walkdir v2.5.0
   Compiling rayon v1.12.0
   Compiling metrics v0.24.6
   Compiling async-broadcast v0.7.2
   Compiling plotters v0.3.7
   Compiling time v0.3.53
   Compiling quick_cache v0.7.0
   Compiling ctrlc v3.5.2
   Compiling darling_core v0.23.0
   Compiling seize v0.5.1
   Compiling criterion-plot v0.8.2
   Compiling page_size v0.6.0
   Compiling oorandom v11.1.5
   Compiling clap v4.6.2
   Compiling fastrand v2.4.1
   Compiling rtrb v0.3.4
   Compiling anes v0.1.6
   Compiling serde_derive v1.0.228
   Compiling tracing-attributes v0.1.31
   Compiling futures-macro v0.3.32
   Compiling zerocopy-derive v0.8.54
   Compiling thiserror-impl v2.0.18
   Compiling bytemuck_derive v1.11.0
   Compiling rapira-derive v0.14.1 (/tmp/armdb-ab.yszzwk/new/rapira-derive)
   Compiling data-encoding-macro-internal v0.1.18
   Compiling strum_macros v0.28.0
   Compiling futures-util v0.3.32
   Compiling data-encoding-macro v0.1.20
   Compiling matchers v0.2.0
   Compiling derive_more-impl v2.1.1
   Compiling darling_macro v0.23.0
   Compiling tracing v0.1.44
   Compiling bytemuck v1.25.1
   Compiling regex v1.13.1
   Compiling compio-log v0.2.0
   Compiling darling v0.23.0
   Compiling compio-executor v0.1.3
   Compiling armour-derive v0.28.3 (/tmp/armdb-ab.yszzwk/new/armour-derive)
   Compiling compio-macros v0.2.0
   Compiling bon-macros v3.9.3
   Compiling tracing-subscriber v0.3.23
   Compiling tempfile v3.27.0
   Compiling strum v0.28.0
   Compiling loom v0.7.2
   Compiling derive_more v2.1.1
   Compiling synchrony v0.1.9
   Compiling arrayvec v0.7.8
   Compiling tinytemplate v1.2.1
   Compiling thin-cell v0.2.1
   Compiling compio-signal v0.10.0
   Compiling compio-buf v0.8.3
   Compiling compio-io v0.10.1
   Compiling armour-typ v0.4.1 (/tmp/armdb-ab.yszzwk/new/armour-typ)
   Compiling bon v3.9.3
   Compiling compio-runtime v0.12.3
   Compiling compio-net v0.12.2
   Compiling rapira v0.13.7 (/tmp/armdb-ab.yszzwk/new/rapira)
   Compiling rend v0.5.4
   Compiling half v2.7.1
   Compiling ciborium-ll v0.2.2
   Compiling ciborium v0.2.2
   Compiling compio v0.19.1
   Compiling criterion v0.8.2
   Compiling armour-core v0.4.2 (/tmp/armdb-ab.yszzwk/new/armour-core)
   Compiling armour-rpc v0.3.1 (/tmp/armdb-ab.yszzwk/new/armour-rpc)
   Compiling armdb v0.7.3 (/tmp/armdb-ab.yszzwk/new/armdb)
    Finished `release` profile [optimized] target(s) in 15.33s
deterministic A/B benchmark
old_sha: e6c0410e3110e03ea246ef24f6896f05457e12a9
new_sha: e6c0410e3110e03ea246ef24f6896f05457e12a9
harness_blob: bde6e892159b639e340d399821b6036143332e76
rustc: rustc 1.97.0 (2d8144b78 2026-07-07)
target_triple: x86_64-unknown-linux-gnu
old_features: armour, bytemuck-codec, parking_lot, rapira-codec, replication, rpc, schema, typed-tree, var-collections
new_features: armour, bytemuck-codec, parking_lot, rapira-codec, replication, rpc, schema, typed-tree, var-collections
cpu_set: 0,1,2,3,4,5,6,7
host_cores: 16
requested_reps: 10
realised_order: old:write:attempt=1 -> new:write:attempt=1 -> old:read:attempt=1 -> new:read:attempt=1 -> new:write:attempt=2 -> old:write:attempt=2 -> new:read:attempt=2 -> old:read:attempt=2 -> old:write:attempt=3 -> new:write:attempt=3 -> old:read:attempt=3 -> new:read:attempt=3 -> new:write:attempt=4 -> old:write:attempt=4 -> new:read:attempt=4 -> old:read:attempt=4 -> old:write:attempt=5 -> new:write:attempt=5 -> old:read:attempt=5 -> new:read:attempt=5 -> new:write:attempt=6 -> old:write:attempt=6 -> new:read:attempt=6 -> old:read:attempt=6 -> old:write:attempt=7 -> new:write:attempt=7 -> old:read:attempt=7 -> new:read:attempt=7 -> new:write:attempt=8 -> old:write:attempt=8 -> new:read:attempt=8 -> old:read:attempt=8 -> old:write:attempt=9 -> new:write:attempt=9 -> old:read:attempt=9 -> new:read:attempt=9 -> new:write:attempt=10 -> old:write:attempt=10 -> new:read:attempt=10 -> old:read:attempt=10
repetitions:
old scenario=write/const_tree/4 attempt=1 order_position=1 ns/op=272.2892401592638 valid=true
old scenario=write/const_tree/8 attempt=1 order_position=1 ns/op=474.3698787396168 valid=true
old scenario=write/typed_tree/4 attempt=1 order_position=1 ns/op=357.6879870910152 valid=true
old scenario=write/typed_tree/8 attempt=1 order_position=1 ns/op=572.4295971092114 valid=true
old scenario=write/typed_map/4 attempt=1 order_position=1 ns/op=389.84464729174533 valid=true
old scenario=write/typed_map/8 attempt=1 order_position=1 ns/op=1075.6320767672605 valid=true
old scenario=write/var_map/4 attempt=1 order_position=1 ns/op=423.17906972862914 valid=true
old scenario=write/var_map/8 attempt=1 order_position=1 ns/op=1076.38001535483 valid=true
new scenario=write/const_tree/4 attempt=1 order_position=2 ns/op=280.7633466847865 valid=true
new scenario=write/const_tree/8 attempt=1 order_position=2 ns/op=447.9585673822444 valid=true
new scenario=write/typed_tree/4 attempt=1 order_position=2 ns/op=355.14617737265536 valid=true
new scenario=write/typed_tree/8 attempt=1 order_position=2 ns/op=581.6494976024536 valid=true
new scenario=write/typed_map/4 attempt=1 order_position=2 ns/op=399.6978090202676 valid=true
new scenario=write/typed_map/8 attempt=1 order_position=2 ns/op=1093.1028255570434 valid=true
new scenario=write/var_map/4 attempt=1 order_position=2 ns/op=422.93327547648454 valid=true
new scenario=write/var_map/8 attempt=1 order_position=2 ns/op=1048.594991321183 valid=true
old scenario=read/typed_tree/get attempt=1 order_position=1 ns/op=189.74884 valid=true
old scenario=read/typed_tree/range16 attempt=1 order_position=1 ns/op=693.0744 valid=true
old scenario=read/typed_tree/range512 attempt=1 order_position=1 ns/op=15116.036666666667 valid=true
old scenario=read/typed_tree/keys512 attempt=1 order_position=1 ns/op=7790.236666666667 valid=true
old scenario=read/typed_tree/page16 attempt=1 order_position=1 ns/op=863.5706 valid=true
old scenario=read/typed_tree/page512 attempt=1 order_position=1 ns/op=28765.516666666666 valid=true
old scenario=read/zero_map/get attempt=1 order_position=1 ns/op=45.64692 valid=true
old scenario=read/zero_map/range16 attempt=1 order_position=1 ns/op=6339.3976 valid=true
old scenario=read/zero_map/range512 attempt=1 order_position=1 ns/op=44781.94666666666 valid=true
old scenario=read/zero_map/keys512 attempt=1 order_position=1 ns/op=15809.873333333333 valid=true
old scenario=read/zero_map/page16 attempt=1 order_position=1 ns/op=2163.9422 valid=true
old scenario=read/zero_map/page512 attempt=1 order_position=1 ns/op=48756.013333333336 valid=true
old scenario=read/var_typed_tree/get attempt=1 order_position=1 ns/op=825.61718 valid=true
old scenario=read/var_typed_tree/range16 attempt=1 order_position=1 ns/op=10650.6164 valid=true
old scenario=read/var_typed_tree/range512 attempt=1 order_position=1 ns/op=337051.92 valid=true
old scenario=read/var_typed_tree/keys512 attempt=1 order_position=1 ns/op=311974.7966666667 valid=true
old scenario=read/var_typed_tree/page16 attempt=1 order_position=1 ns/op=11241.1138 valid=true
old scenario=read/var_typed_tree/page512 attempt=1 order_position=1 ns/op=336889.31 valid=true
new scenario=read/typed_tree/get attempt=1 order_position=2 ns/op=189.93218 valid=true
new scenario=read/typed_tree/range16 attempt=1 order_position=2 ns/op=695.3646 valid=true
new scenario=read/typed_tree/range512 attempt=1 order_position=2 ns/op=15406.513333333334 valid=true
new scenario=read/typed_tree/keys512 attempt=1 order_position=2 ns/op=8760.526666666667 valid=true
new scenario=read/typed_tree/page16 attempt=1 order_position=2 ns/op=859.489 valid=true
new scenario=read/typed_tree/page512 attempt=1 order_position=2 ns/op=29577.78 valid=true
new scenario=read/zero_map/get attempt=1 order_position=2 ns/op=46.53744 valid=true
new scenario=read/zero_map/range16 attempt=1 order_position=2 ns/op=6447.8336 valid=true
new scenario=read/zero_map/range512 attempt=1 order_position=2 ns/op=45272.4 valid=true
new scenario=read/zero_map/keys512 attempt=1 order_position=2 ns/op=16820.97333333333 valid=true
new scenario=read/zero_map/page16 attempt=1 order_position=2 ns/op=2152.19 valid=true
new scenario=read/zero_map/page512 attempt=1 order_position=2 ns/op=49044.153333333335 valid=true
new scenario=read/var_typed_tree/get attempt=1 order_position=2 ns/op=850.347595 valid=true
new scenario=read/var_typed_tree/range16 attempt=1 order_position=2 ns/op=10903.9024 valid=true
new scenario=read/var_typed_tree/range512 attempt=1 order_position=2 ns/op=341723.39666666667 valid=true
new scenario=read/var_typed_tree/keys512 attempt=1 order_position=2 ns/op=324425.7266666667 valid=true
new scenario=read/var_typed_tree/page16 attempt=1 order_position=2 ns/op=11393.7068 valid=true
new scenario=read/var_typed_tree/page512 attempt=1 order_position=2 ns/op=328516.14666666667 valid=true
new scenario=write/const_tree/4 attempt=2 order_position=1 ns/op=269.854085306249 valid=true
new scenario=write/const_tree/8 attempt=2 order_position=1 ns/op=463.12153098982424 valid=true
new scenario=write/typed_tree/4 attempt=2 order_position=1 ns/op=363.934895743926 valid=true
new scenario=write/typed_tree/8 attempt=2 order_position=1 ns/op=573.6692044037034 valid=true
new scenario=write/typed_map/4 attempt=2 order_position=1 ns/op=398.40567314404734 valid=true
new scenario=write/typed_map/8 attempt=2 order_position=1 ns/op=1113.2338165619528 valid=true
new scenario=write/var_map/4 attempt=2 order_position=1 ns/op=355.58853766814644 valid=true
new scenario=write/var_map/8 attempt=2 order_position=1 ns/op=1075.4760748381066 valid=true
old scenario=write/const_tree/4 attempt=2 order_position=2 ns/op=274.94864339699114 valid=true
old scenario=write/const_tree/8 attempt=2 order_position=2 ns/op=469.5139237246917 valid=true
old scenario=write/typed_tree/4 attempt=2 order_position=2 ns/op=353.12101457982857 valid=true
old scenario=write/typed_tree/8 attempt=2 order_position=2 ns/op=628.2987963630537 valid=true
old scenario=write/typed_map/4 attempt=2 order_position=2 ns/op=391.7448887630034 valid=true
old scenario=write/typed_map/8 attempt=2 order_position=2 ns/op=1082.0628097069157 valid=true
old scenario=write/var_map/4 attempt=2 order_position=2 ns/op=423.12097366400747 valid=true
old scenario=write/var_map/8 attempt=2 order_position=2 ns/op=1042.8032829294345 valid=true
new scenario=read/typed_tree/get attempt=2 order_position=1 ns/op=185.941685 valid=true
new scenario=read/typed_tree/range16 attempt=2 order_position=1 ns/op=732.2838 valid=true
new scenario=read/typed_tree/range512 attempt=2 order_position=1 ns/op=15207.04 valid=true
new scenario=read/typed_tree/keys512 attempt=2 order_position=1 ns/op=7949.7733333333335 valid=true
new scenario=read/typed_tree/page16 attempt=2 order_position=1 ns/op=852.3936 valid=true
new scenario=read/typed_tree/page512 attempt=2 order_position=1 ns/op=27865.793333333335 valid=true
new scenario=read/zero_map/get attempt=2 order_position=1 ns/op=46.048325 valid=true
new scenario=read/zero_map/range16 attempt=2 order_position=1 ns/op=6613.8294 valid=true
new scenario=read/zero_map/range512 attempt=2 order_position=1 ns/op=46124.10333333333 valid=true
new scenario=read/zero_map/keys512 attempt=2 order_position=1 ns/op=16313.853333333333 valid=true
new scenario=read/zero_map/page16 attempt=2 order_position=1 ns/op=2301.5848 valid=true
new scenario=read/zero_map/page512 attempt=2 order_position=1 ns/op=50149.833333333336 valid=true
new scenario=read/var_typed_tree/get attempt=2 order_position=1 ns/op=827.82198 valid=true
new scenario=read/var_typed_tree/range16 attempt=2 order_position=1 ns/op=10764.4002 valid=true
new scenario=read/var_typed_tree/range512 attempt=2 order_position=1 ns/op=328997.08666666667 valid=true
new scenario=read/var_typed_tree/keys512 attempt=2 order_position=1 ns/op=309666.16333333333 valid=true
new scenario=read/var_typed_tree/page16 attempt=2 order_position=1 ns/op=11300.113 valid=true
new scenario=read/var_typed_tree/page512 attempt=2 order_position=1 ns/op=326952.04333333333 valid=true
old scenario=read/typed_tree/get attempt=2 order_position=2 ns/op=196.250055 valid=true
old scenario=read/typed_tree/range16 attempt=2 order_position=2 ns/op=704.8746 valid=true
old scenario=read/typed_tree/range512 attempt=2 order_position=2 ns/op=15385.776666666667 valid=true
old scenario=read/typed_tree/keys512 attempt=2 order_position=2 ns/op=7968.506666666667 valid=true
old scenario=read/typed_tree/page16 attempt=2 order_position=2 ns/op=875.2546 valid=true
old scenario=read/typed_tree/page512 attempt=2 order_position=2 ns/op=29654.02 valid=true
old scenario=read/zero_map/get attempt=2 order_position=2 ns/op=46.66814 valid=true
old scenario=read/zero_map/range16 attempt=2 order_position=2 ns/op=6645.1884 valid=true
old scenario=read/zero_map/range512 attempt=2 order_position=2 ns/op=45108.49333333333 valid=true
old scenario=read/zero_map/keys512 attempt=2 order_position=2 ns/op=16060.643333333333 valid=true
old scenario=read/zero_map/page16 attempt=2 order_position=2 ns/op=2207.2914 valid=true
old scenario=read/zero_map/page512 attempt=2 order_position=2 ns/op=48894.806666666664 valid=true
old scenario=read/var_typed_tree/get attempt=2 order_position=2 ns/op=828.414395 valid=true
old scenario=read/var_typed_tree/range16 attempt=2 order_position=2 ns/op=10802.9328 valid=true
old scenario=read/var_typed_tree/range512 attempt=2 order_position=2 ns/op=330481.91 valid=true
old scenario=read/var_typed_tree/keys512 attempt=2 order_position=2 ns/op=309607.55333333334 valid=true
old scenario=read/var_typed_tree/page16 attempt=2 order_position=2 ns/op=11191.9156 valid=true
old scenario=read/var_typed_tree/page512 attempt=2 order_position=2 ns/op=323437.1066666667 valid=true
old scenario=write/const_tree/4 attempt=3 order_position=1 ns/op=268.07872827408625 valid=true
old scenario=write/const_tree/8 attempt=3 order_position=1 ns/op=496.10654510428486 valid=true
old scenario=write/typed_tree/4 attempt=3 order_position=1 ns/op=364.39794120003205 valid=true
old scenario=write/typed_tree/8 attempt=3 order_position=1 ns/op=558.3217246884334 valid=true
old scenario=write/typed_map/4 attempt=3 order_position=1 ns/op=398.0301638800197 valid=true
old scenario=write/typed_map/8 attempt=3 order_position=1 ns/op=1139.9703196347032 valid=true
old scenario=write/var_map/4 attempt=3 order_position=1 ns/op=398.302246403418 valid=true
old scenario=write/var_map/8 attempt=3 order_position=1 ns/op=1174.9150477334936 valid=true
new scenario=write/const_tree/4 attempt=3 order_position=2 ns/op=271.03589991178507 valid=true
new scenario=write/const_tree/8 attempt=3 order_position=2 ns/op=478.5889973964542 valid=true
new scenario=write/typed_tree/4 attempt=3 order_position=2 ns/op=365.2626715189801 valid=true
new scenario=write/typed_tree/8 attempt=3 order_position=2 ns/op=590.3210480539248 valid=true
new scenario=write/typed_map/4 attempt=3 order_position=2 ns/op=402.5358330186196 valid=true
new scenario=write/typed_map/8 attempt=3 order_position=2 ns/op=1082.3252437600852 valid=true
new scenario=write/var_map/4 attempt=3 order_position=2 ns/op=437.4962699021997 valid=true
new scenario=write/var_map/8 attempt=3 order_position=2 ns/op=1202.3487799586087 valid=true
old scenario=read/typed_tree/get attempt=3 order_position=1 ns/op=186.728665 valid=true
old scenario=read/typed_tree/range16 attempt=3 order_position=1 ns/op=713.7452 valid=true
old scenario=read/typed_tree/range512 attempt=3 order_position=1 ns/op=19970.56 valid=true
old scenario=read/typed_tree/keys512 attempt=3 order_position=1 ns/op=8105.63 valid=true
old scenario=read/typed_tree/page16 attempt=3 order_position=1 ns/op=851.061 valid=true
old scenario=read/typed_tree/page512 attempt=3 order_position=1 ns/op=28828.47 valid=true
old scenario=read/zero_map/get attempt=3 order_position=1 ns/op=45.875095 valid=true
old scenario=read/zero_map/range16 attempt=3 order_position=1 ns/op=6584.9332 valid=true
old scenario=read/zero_map/range512 attempt=3 order_position=1 ns/op=45052.22 valid=true
old scenario=read/zero_map/keys512 attempt=3 order_position=1 ns/op=15869.62 valid=true
old scenario=read/zero_map/page16 attempt=3 order_position=1 ns/op=2141.9808 valid=true
old scenario=read/zero_map/page512 attempt=3 order_position=1 ns/op=49764.81 valid=true
old scenario=read/var_typed_tree/get attempt=3 order_position=1 ns/op=832.688535 valid=true
old scenario=read/var_typed_tree/range16 attempt=3 order_position=1 ns/op=10773.9744 valid=true
old scenario=read/var_typed_tree/range512 attempt=3 order_position=1 ns/op=338407.20666666667 valid=true
old scenario=read/var_typed_tree/keys512 attempt=3 order_position=1 ns/op=323617.24666666664 valid=true
old scenario=read/var_typed_tree/page16 attempt=3 order_position=1 ns/op=11794.7366 valid=true
old scenario=read/var_typed_tree/page512 attempt=3 order_position=1 ns/op=326981.10333333333 valid=true
new scenario=read/typed_tree/get attempt=3 order_position=2 ns/op=200.383075 valid=true
new scenario=read/typed_tree/range16 attempt=3 order_position=2 ns/op=733.384 valid=true
new scenario=read/typed_tree/range512 attempt=3 order_position=2 ns/op=15708.65 valid=true
new scenario=read/typed_tree/keys512 attempt=3 order_position=2 ns/op=7960.056666666666 valid=true
new scenario=read/typed_tree/page16 attempt=3 order_position=2 ns/op=859.547 valid=true
new scenario=read/typed_tree/page512 attempt=3 order_position=2 ns/op=28389.876666666667 valid=true
new scenario=read/zero_map/get attempt=3 order_position=2 ns/op=46.574165 valid=true
new scenario=read/zero_map/range16 attempt=3 order_position=2 ns/op=6648.4246 valid=true
new scenario=read/zero_map/range512 attempt=3 order_position=2 ns/op=45350.013333333336 valid=true
new scenario=read/zero_map/keys512 attempt=3 order_position=2 ns/op=16014.79 valid=true
new scenario=read/zero_map/page16 attempt=3 order_position=2 ns/op=2128.9584 valid=true
new scenario=read/zero_map/page512 attempt=3 order_position=2 ns/op=48580.75 valid=true
new scenario=read/var_typed_tree/get attempt=3 order_position=2 ns/op=844.599115 valid=true
new scenario=read/var_typed_tree/range16 attempt=3 order_position=2 ns/op=11239.888 valid=true
new scenario=read/var_typed_tree/range512 attempt=3 order_position=2 ns/op=332454.08666666667 valid=true
new scenario=read/var_typed_tree/keys512 attempt=3 order_position=2 ns/op=309522.36666666664 valid=true
new scenario=read/var_typed_tree/page16 attempt=3 order_position=2 ns/op=11236.4516 valid=true
new scenario=read/var_typed_tree/page512 attempt=3 order_position=2 ns/op=330305.98333333334 valid=true
new scenario=write/const_tree/4 attempt=4 order_position=1 ns/op=283.2386345754953 valid=true
new scenario=write/const_tree/8 attempt=4 order_position=1 ns/op=449.3915439598692 valid=true
new scenario=write/typed_tree/4 attempt=4 order_position=1 ns/op=359.7291931312299 valid=true
new scenario=write/typed_tree/8 attempt=4 order_position=1 ns/op=606.3452438173058 valid=true
new scenario=write/typed_map/4 attempt=4 order_position=1 ns/op=403.88718085167255 valid=true
new scenario=write/typed_map/8 attempt=4 order_position=1 ns/op=1072.8524221512687 valid=true
new scenario=write/var_map/4 attempt=4 order_position=1 ns/op=415.04771521078806 valid=true
new scenario=write/var_map/8 attempt=4 order_position=1 ns/op=1060.792401028106 valid=true
old scenario=write/const_tree/4 attempt=4 order_position=2 ns/op=277.2219655246406 valid=true
old scenario=write/const_tree/8 attempt=4 order_position=2 ns/op=460.76768360719836 valid=true
old scenario=write/typed_tree/4 attempt=4 order_position=2 ns/op=372.5967687483549 valid=true
old scenario=write/typed_tree/8 attempt=4 order_position=2 ns/op=585.2641335072842 valid=true
old scenario=write/typed_map/4 attempt=4 order_position=2 ns/op=410.6931812979938 valid=true
old scenario=write/typed_map/8 attempt=4 order_position=2 ns/op=1071.684144722537 valid=true
old scenario=write/var_map/4 attempt=4 order_position=2 ns/op=382.09701592175975 valid=true
old scenario=write/var_map/8 attempt=4 order_position=2 ns/op=1052.686352560251 valid=true
new scenario=read/typed_tree/get attempt=4 order_position=1 ns/op=188.07069 valid=true
new scenario=read/typed_tree/range16 attempt=4 order_position=1 ns/op=702.9288 valid=true
new scenario=read/typed_tree/range512 attempt=4 order_position=1 ns/op=15138.413333333334 valid=true
new scenario=read/typed_tree/keys512 attempt=4 order_position=1 ns/op=7784.026666666667 valid=true
new scenario=read/typed_tree/page16 attempt=4 order_position=1 ns/op=874.7736 valid=true
new scenario=read/typed_tree/page512 attempt=4 order_position=1 ns/op=28402.17 valid=true
new scenario=read/zero_map/get attempt=4 order_position=1 ns/op=44.902475 valid=true
new scenario=read/zero_map/range16 attempt=4 order_position=1 ns/op=6336.27 valid=true
new scenario=read/zero_map/range512 attempt=4 order_position=1 ns/op=44964.89 valid=true
new scenario=read/zero_map/keys512 attempt=4 order_position=1 ns/op=15992.85 valid=true
new scenario=read/zero_map/page16 attempt=4 order_position=1 ns/op=2131.483 valid=true
new scenario=read/zero_map/page512 attempt=4 order_position=1 ns/op=48424.89 valid=true
new scenario=read/var_typed_tree/get attempt=4 order_position=1 ns/op=830.598765 valid=true
new scenario=read/var_typed_tree/range16 attempt=4 order_position=1 ns/op=10849.1258 valid=true
new scenario=read/var_typed_tree/range512 attempt=4 order_position=1 ns/op=335110.65 valid=true
new scenario=read/var_typed_tree/keys512 attempt=4 order_position=1 ns/op=314256.83 valid=true
new scenario=read/var_typed_tree/page16 attempt=4 order_position=1 ns/op=11445.6268 valid=true
new scenario=read/var_typed_tree/page512 attempt=4 order_position=1 ns/op=336078.7366666667 valid=true
old scenario=read/typed_tree/get attempt=4 order_position=2 ns/op=190.009435 valid=true
old scenario=read/typed_tree/range16 attempt=4 order_position=2 ns/op=859.6512 valid=true
old scenario=read/typed_tree/range512 attempt=4 order_position=2 ns/op=15547.713333333333 valid=true
old scenario=read/typed_tree/keys512 attempt=4 order_position=2 ns/op=8405.893333333333 valid=true
old scenario=read/typed_tree/page16 attempt=4 order_position=2 ns/op=943.042 valid=true
old scenario=read/typed_tree/page512 attempt=4 order_position=2 ns/op=30352.263333333332 valid=true
old scenario=read/zero_map/get attempt=4 order_position=2 ns/op=48.833355 valid=true
old scenario=read/zero_map/range16 attempt=4 order_position=2 ns/op=6730.2262 valid=true
old scenario=read/zero_map/range512 attempt=4 order_position=2 ns/op=49324.01666666667 valid=true
old scenario=read/zero_map/keys512 attempt=4 order_position=2 ns/op=16473.69 valid=true
old scenario=read/zero_map/page16 attempt=4 order_position=2 ns/op=2751.8348 valid=true
old scenario=read/zero_map/page512 attempt=4 order_position=2 ns/op=52005.28333333333 valid=true
old scenario=read/var_typed_tree/get attempt=4 order_position=2 ns/op=856.587955 valid=true
old scenario=read/var_typed_tree/range16 attempt=4 order_position=2 ns/op=13070.8044 valid=true
old scenario=read/var_typed_tree/range512 attempt=4 order_position=2 ns/op=359954.19666666666 valid=true
old scenario=read/var_typed_tree/keys512 attempt=4 order_position=2 ns/op=329863.99333333335 valid=true
old scenario=read/var_typed_tree/page16 attempt=4 order_position=2 ns/op=12156.5326 valid=true
old scenario=read/var_typed_tree/page512 attempt=4 order_position=2 ns/op=329799.33666666667 valid=true
old scenario=write/const_tree/4 attempt=5 order_position=1 ns/op=275.4942481462938 valid=true
old scenario=write/const_tree/8 attempt=5 order_position=1 ns/op=461.68127545132893 valid=true
old scenario=write/typed_tree/4 attempt=5 order_position=1 ns/op=377.1291685263387 valid=true
old scenario=write/typed_tree/8 attempt=5 order_position=1 ns/op=590.8488530115243 valid=true
old scenario=write/typed_map/4 attempt=5 order_position=1 ns/op=388.9790071640288 valid=true
old scenario=write/typed_map/8 attempt=5 order_position=1 ns/op=1821.1661774298761 valid=true
old scenario=write/var_map/4 attempt=5 order_position=1 ns/op=473.9459845121666 valid=true
old scenario=write/var_map/8 attempt=5 order_position=1 ns/op=1267.8231524133787 valid=true
new scenario=write/const_tree/4 attempt=5 order_position=2 ns/op=284.1114727129676 valid=true
new scenario=write/const_tree/8 attempt=5 order_position=2 ns/op=536.7732638259725 valid=true
new scenario=write/typed_tree/4 attempt=5 order_position=2 ns/op=360.5162034652842 valid=true
new scenario=write/typed_tree/8 attempt=5 order_position=2 ns/op=626.1948535722869 valid=true
new scenario=write/typed_map/4 attempt=5 order_position=2 ns/op=439.85321894919946 valid=true
new scenario=write/typed_map/8 attempt=5 order_position=2 ns/op=1189.3560427896225 valid=true
new scenario=write/var_map/4 attempt=5 order_position=2 ns/op=470.78347908808706 valid=true
new scenario=write/var_map/8 attempt=5 order_position=2 ns/op=1148.156836237399 valid=true
old scenario=read/typed_tree/get attempt=5 order_position=1 ns/op=190.74016 valid=true
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{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":false,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":512,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":28449.356666666667,"ops_per_second":35150.179728727315,"valid_reps":1},"operations":300,"order_position":2,"repetitions":[{"elapsed_ns":8534807,"invalid_reason":null,"ns_per_op":28449.356666666667,"rep":1,"valid":true}],"scenario":"read/typed_tree/page512","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":true,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":null,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":45.971785,"ops_per_second":21752472.73952926,"valid_reps":1},"operations":200000,"order_position":2,"repetitions":[{"elapsed_ns":9194357,"invalid_reason":null,"ns_per_op":45.971785,"rep":1,"valid":true}],"scenario":"read/zero_map/get","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":true,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":16,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":6384.7736,"ops_per_second":156622.6248022326,"valid_reps":1},"operations":5000,"order_position":2,"repetitions":[{"elapsed_ns":31923868,"invalid_reason":null,"ns_per_op":6384.7736,"rep":1,"valid":true}],"scenario":"read/zero_map/range16","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":true,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":512,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":45091.29666666667,"ops_per_second":22177.228732019164,"valid_reps":1},"operations":300,"order_position":2,"repetitions":[{"elapsed_ns":13527389,"invalid_reason":null,"ns_per_op":45091.29666666667,"rep":1,"valid":true}],"scenario":"read/zero_map/range512","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":true,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":512,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":15993.32,"ops_per_second":62526.10464869083,"valid_reps":1},"operations":300,"order_position":2,"repetitions":[{"elapsed_ns":4797996,"invalid_reason":null,"ns_per_op":15993.32,"rep":1,"valid":true}],"scenario":"read/zero_map/keys512","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":true,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":16,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":2156.362,"ops_per_second":463744.02813627763,"valid_reps":1},"operations":5000,"order_position":2,"repetitions":[{"elapsed_ns":10781810,"invalid_reason":null,"ns_per_op":2156.362,"rep":1,"valid":true}],"scenario":"read/zero_map/page16","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":true,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":512,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":49566.136666666665,"ops_per_second":20175.064413936907,"valid_reps":1},"operations":300,"order_position":2,"repetitions":[{"elapsed_ns":14869841,"invalid_reason":null,"ns_per_op":49566.136666666665,"rep":1,"valid":true}],"scenario":"read/zero_map/page512","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":false,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":null,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":850.19298,"ops_per_second":1176203.5485167142,"valid_reps":1},"operations":200000,"order_position":2,"repetitions":[{"elapsed_ns":170038596,"invalid_reason":null,"ns_per_op":850.19298,"rep":1,"valid":true}],"scenario":"read/var_typed_tree/get","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":false,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":16,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":10735.3726,"ops_per_second":93150.00394117666,"valid_reps":1},"operations":5000,"order_position":2,"repetitions":[{"elapsed_ns":53676863,"invalid_reason":null,"ns_per_op":10735.3726,"rep":1,"valid":true}],"scenario":"read/var_typed_tree/range16","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":false,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":512,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":328130.9866666667,"ops_per_second":3047.563444582131,"valid_reps":1},"operations":300,"order_position":2,"repetitions":[{"elapsed_ns":98439296,"invalid_reason":null,"ns_per_op":328130.9866666667,"rep":1,"valid":true}],"scenario":"read/var_typed_tree/range512","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":false,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":512,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":308931.1766666667,"ops_per_second":3236.966921855831,"valid_reps":1},"operations":300,"order_position":2,"repetitions":[{"elapsed_ns":92679353,"invalid_reason":null,"ns_per_op":308931.1766666667,"rep":1,"valid":true}],"scenario":"read/var_typed_tree/keys512","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":false,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":16,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":11279.6314,"ops_per_second":88655.3792883693,"valid_reps":1},"operations":5000,"order_position":2,"repetitions":[{"elapsed_ns":56398157,"invalid_reason":null,"ns_per_op":11279.6314,"rep":1,"valid":true}],"scenario":"read/var_typed_tree/page16","side":"old"}
{"attempt":10,"inputs":{"approx_entry_bytes":null,"dataset_size":50000,"hints":true,"iterable":false,"lcg_seed":5573589319906701683,"max_file_bytes":268435456,"page_size":512,"reversed":false,"shards":4,"target_append_bytes":null,"threads":null,"value_size":16,"write_buffer_bytes":67108864},"kind":"scenario","median":{"ns_per_op":329370.35,"ops_per_second":3036.095993461464,"valid_reps":1},"operations":300,"order_position":2,"repetitions":[{"elapsed_ns":98811105,"invalid_reason":null,"ns_per_op":329370.35,"rep":1,"valid":true}],"scenario":"read/var_typed_tree/page512","side":"old"}
END RAW NDJSON
summary:
write/const_tree/4 old_median=274.31244307750995 new_median=275.59654292730613 delta_pct=0.4681157862872931 role=self-check verdict=PASS
write/const_tree/8 old_median=467.2579161381691 new_median=465.84996292569883 delta_pct=-0.30132249531625854 role=self-check verdict=PASS
write/typed_tree/4 old_median=364.62788964420184 new_median=361.2913741259542 delta_pct=-0.9150467128291817 role=self-check verdict=PASS
write/typed_tree/8 old_median=588.7908176548679 new_median=592.1159405362721 delta_pct=0.5647375573294644 role=self-check verdict=PASS
write/typed_map/4 old_median=396.39692338723523 new_median=403.6590634691752 delta_pct=1.8320374486977764 role=self-check verdict=PASS
write/typed_map/8 old_median=1083.174544523409 new_median=1091.3054053512778 delta_pct=0.750651025633764 role=self-check verdict=PASS
write/var_map/4 old_median=419.23774575252844 new_median=411.25216545946125 delta_pct=-1.9047856196090174 role=self-check verdict=PASS
write/var_map/8 old_median=1074.6736723078975 new_median=1069.578196975766 delta_pct=-0.4741416360548478 role=self-check verdict=PASS
read/typed_tree/get old_median=189.89888 new_median=190.78732 delta_pct=0.4678489941594144 role=self-check verdict=PASS
read/typed_tree/range16 old_median=712.0209 new_median=708.1667 delta_pct=-0.5413043353081348 role=self-check verdict=PASS
read/typed_tree/range512 old_median=15453.453333333335 new_median=15437.323333333334 delta_pct=-0.10437796427811286 role=self-check verdict=PASS
read/typed_tree/keys512 old_median=7954.446666666667 new_median=7973.115 delta_pct=0.23469053368052606 role=self-check verdict=PASS
read/typed_tree/page16 old_median=877.566 new_median=857.892 delta_pct=-2.2418826618168852 role=self-check verdict=PASS
read/typed_tree/page512 old_median=28796.993333333332 new_median=28408.098333333335 delta_pct=-1.3504708477667382 role=self-check verdict=PASS
read/zero_map/get old_median=46.3252475 new_median=46.4543625 delta_pct=0.2787141072478905 role=self-check verdict=PASS
read/zero_map/range16 old_median=6486.1057 new_median=6407.2216 delta_pct=-1.2162012715889015 role=self-check verdict=PASS
read/zero_map/range512 old_median=45071.75833333333 new_median=44914.763333333336 delta_pct=-0.34832233266544055 role=self-check verdict=PASS
read/zero_map/keys512 old_median=16175.961666666666 new_median=16074.153333333334 delta_pct=-0.6293804067496356 role=self-check verdict=PASS
read/zero_map/page16 old_median=2162.6558 new_median=2152.4997000000003 delta_pct=-0.4696124089649256 role=self-check verdict=PASS
read/zero_map/page512 old_median=49355.323333333334 new_median=48964.236666666664 delta_pct=-0.7923900407365791 role=self-check verdict=PASS
read/var_typed_tree/get old_median=829.3703575 new_median=830.5095699999999 delta_pct=0.1373587191413339 role=self-check verdict=PASS
read/var_typed_tree/range16 old_median=10743.5248 new_median=10772.9451 delta_pct=0.27384215653323274 role=self-check verdict=PASS
read/var_typed_tree/range512 old_median=329672.9816666667 new_median=330976.82666666666 delta_pct=0.39549646847258924 role=self-check verdict=PASS
read/var_typed_tree/keys512 old_median=312140.9633333333 new_median=309895.105 delta_pct=-0.7195013141979012 role=self-check verdict=PASS
read/var_typed_tree/page16 old_median=11224.3738 new_median=11400.4898 delta_pct=1.5690496693900213 role=self-check verdict=PASS
read/var_typed_tree/page512 old_median=327815.92833333334 new_median=327734.095 delta_pct=-0.02496319619044174 role=self-check verdict=PASS
whole_run_verdict: PASS
exit_code_reason: all gates passed
```

</details>

## Invalid-repetition probe

To prove that write-buffer growth is rejected as data, only `WRITE_BUFFER_BYTES` was temporarily patched from `64 * 1024 * 1024` to `16 * 1024 * 1024` with `apply_patch`. The current example was run directly (the runner correctly refuses a dirty harness):

```text
AB_TARGET_TRIPLE="$(rustc -vV | sed -n 's/^host: //p')" cargo run -p armdb --release --example ab_harness -- --group write --scenario all --reps 1 --json --label invalid-buffer-probe | tee /tmp/armdb-ab-invalid-buffer.ndjson
```

All eight records were invalid, each carried a `data files grew` reason, and each median was `null`:

```json
{"kind":"scenario","scenario":"write/const_tree/4","operations":838860,"repetitions":[{"rep":1,"elapsed_ns":241139471,"ns_per_op":287.4609243497127,"valid":false,"invalid_reason":"data files grew from 33554400 to 50331600 bytes"}],"median":null,"inputs":{"threads":4,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":16,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":40,"lcg_seed":null}}
{"kind":"scenario","scenario":"write/const_tree/8","operations":838856,"repetitions":[{"rep":1,"elapsed_ns":463112397,"ns_per_op":552.076157290405,"valid":false,"invalid_reason":"data files grew from 33554240 to 50331440 bytes"}],"median":null,"inputs":{"threads":8,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":16,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":40,"lcg_seed":null}}
{"kind":"scenario","scenario":"write/typed_tree/4","operations":699048,"repetitions":[{"rep":1,"elapsed_ns":268648873,"ns_per_op":384.3067614813289,"valid":false,"invalid_reason":"data files grew from 27961920 to 44739120 bytes"}],"median":null,"inputs":{"threads":4,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":16,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":48,"lcg_seed":null}}
{"kind":"scenario","scenario":"write/typed_tree/8","operations":699048,"repetitions":[{"rep":1,"elapsed_ns":523225945,"ns_per_op":748.4835733740745,"valid":false,"invalid_reason":"data files grew from 27961920 to 44739120 bytes"}],"median":null,"inputs":{"threads":8,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":16,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":48,"lcg_seed":null}}
{"kind":"scenario","scenario":"write/typed_map/4","operations":699048,"repetitions":[{"rep":1,"elapsed_ns":299908563,"ns_per_op":429.02427730284614,"valid":false,"invalid_reason":"data files grew from 27961920 to 44739120 bytes"}],"median":null,"inputs":{"threads":4,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":16,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":48,"lcg_seed":null}}
{"kind":"scenario","scenario":"write/typed_map/8","operations":699048,"repetitions":[{"rep":1,"elapsed_ns":783858727,"ns_per_op":1121.3231809546699,"valid":false,"invalid_reason":"data files grew from 27961920 to 44739120 bytes"}],"median":null,"inputs":{"threads":8,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":16,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":48,"lcg_seed":null}}
{"kind":"scenario","scenario":"write/var_map/4","operations":119836,"repetitions":[{"rep":1,"elapsed_ns":57340538,"ns_per_op":478.49175539904536,"valid":false,"invalid_reason":"data files grew from 33554080 to 50331120 bytes"}],"median":null,"inputs":{"threads":4,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":256,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":280,"lcg_seed":null}}
{"kind":"scenario","scenario":"write/var_map/8","operations":119832,"repetitions":[{"rep":1,"elapsed_ns":138919631,"ns_per_op":1159.2865928967221,"valid":false,"invalid_reason":"data files grew from 33552960 to 50330000 bytes"}],"median":null,"inputs":{"threads":8,"shards":1,"iterable":false,"reversed":false,"hints":true,"page_size":null,"dataset_size":null,"value_size":256,"write_buffer_bytes":16777216,"max_file_bytes":268435456,"target_append_bytes":33554432,"approx_entry_bytes":280,"lcg_seed":null}}
```

The inverse patch restored `WRITE_BUFFER_BYTES` to 64 MiB. `git diff --exit-code -- armdb/examples/ab_harness.rs` and a Python assertion over `/tmp/armdb-ab-invalid-buffer.ndjson` both exited zero. Therefore no invalid sample contributed a median.

## Task 5 transition status: NEEDS_CONTEXT

Task 5 attempted the RPC transition (`229882fc` → `be7625f5`) three complete times with the required fixed CPU set (`0,1,2,3,4,5,6,7`), harness blob, features, and ten repetitions. Every repetition in every capture was valid and all 18 scenarios were present, but each whole run was invalidated by control drift in `read/typed_tree/page16`, a control scenario. The control deltas were +6.31%, +5.10%, and +6.57% (acceptance is `abs(delta) <= 3%`). Under-test regressions observed in these invalid captures are retained only as diagnostics and are not reportable measurements.

Per the acceptance gate, after three complete control-drift-invalid runs for the same pair, measurement stopped with `NEEDS_CONTEXT`; no rows were selectively resampled. The Inspection transition (`7a067633` → `229882fc`) was not started because a complete accepted pair could not be formed. Therefore no RPC or Inspection summary table, whole-pair verdict, or fixed-call-vs-per-row conclusion is asserted here.

Captures (all complete, preserved): `/tmp/armdb-ab-rpc-invalid-1.txt`, `/tmp/armdb-ab-rpc-invalid-2.txt`, and `/tmp/armdb-ab-rpc.txt` (third invalid run). The complete Task 5 report records provenance, parsed counts, role mapping, control-drift details, and mechanical checks.

### Diagnostic self-control follow-up

The permitted follow-up self run (`29709046` → `29709046`) passed: all 26 scenarios had ten valid samples per side, zero invalid selected samples, and the maximum absolute self delta was 2.8012% (`read/typed_tree/range16`), within the 3% self gate. This confirms the host/control is stable for the unchanged commit, but does not rehabilitate the three RPC transition captures. A later same-binary diagnostic isolated the shared-vs-split runtime registration topology and found no supporting drift; the earlier structural wording is therefore superseded by the addendum below. The mandatory RPC control-drift gate remains unchanged and no gate or result was relabelled here.


## Same-binary RPC registration-topology diagnostic addendum

This is diagnostic-only evidence, not Task 5 acceptance evidence. It does not amend the specification, accepted harness, control gate, or acceptance verdict.

The experiment used exact base `be7625f5c186d30c1db75e37695c2ddd7bb51f48` with accepted harness blob `bde6e892159b639e340d399821b6036143332e76`. It defined old=`split` and new=`shared`, pinned CPU set `0,1,2,3,4,5,6,7`, collected 10 valid observations per topology/scenario across 18 read scenarios (360 scenario rows total), recorded zero invalid observations, and verified identical inputs. One release executable was built once and used for both sides; executable SHA-256: `2612d4c14cbe7d8a8000404f35ca08f7f3496fb3208b6040fc3527a325ff66f4`.

All medians below are over the 10 valid observations; delta is `(shared / split - 1) × 100`, so positive means shared is slower.

| Scenario | split median ns/op | shared median ns/op | delta % |
|---|---:|---:|---:|
| read/typed_tree/get | 193.955235 | 193.418490 | -0.276737 |
| read/typed_tree/range16 | 692.169100 | 710.021600 | 2.579211 |
| read/typed_tree/range512 | 15435.183333 | 15405.273333 | -0.193778 |
| read/typed_tree/keys512 | 7843.643333 | 7863.283333 | 0.250394 |
| read/typed_tree/page16 | 879.301700 | 873.066000 | -0.709165 |
| read/typed_tree/page512 | 28512.048333 | 28661.376667 | 0.523738 |
| read/zero_map/get | 46.614048 | 46.847188 | 0.500150 |
| read/zero_map/range16 | 6266.865600 | 6281.382300 | 0.231642 |
| read/zero_map/range512 | 44707.485000 | 45081.308333 | 0.836154 |
| read/zero_map/keys512 | 15952.805000 | 15999.526667 | 0.292874 |
| read/zero_map/page16 | 2125.138800 | 2146.571800 | 1.008546 |
| read/zero_map/page512 | 48746.318333 | 49333.265000 | 1.204084 |
| read/var_typed_tree/get | 851.563223 | 849.232885 | -0.273654 |
| read/var_typed_tree/range16 | 10864.298900 | 10874.496900 | 0.093867 |
| read/var_typed_tree/range512 | 335674.258333 | 334962.411667 | -0.212065 |
| read/var_typed_tree/keys512 | 320004.728333 | 322623.486667 | 0.818350 |
| read/var_typed_tree/page16 | 11448.746900 | 11481.152900 | 0.283053 |
| read/var_typed_tree/page512 | 329605.175000 | 329912.353333 | 0.093196 |

For `read/typed_tree/page16`, the overall delta is `-0.709165%`; old-first is `-1.005695%` (`n=5` each), and new-first is `-0.697111%` (`n=5` each).

Diagnostic conclusion: H1 (runtime registration topology) is unsupported by this experiment. H2 (release codegen/vtable placement outside runtime topology) is the stronger explanation, but is not proven. H3 (measurement artifact) is not indicated by this complete, valid, input-identical, order-consistent capture.

The remaining decision/blocker is unchanged: the exact historical RPC pair remains invalid under the unchanged 3% control gate, and Inspection/final acceptance work has not resumed.

## Historical-binary disassembly diagnostic addendum

This is diagnostic-only evidence. It does not rehabilitate the historical RPC pair, amend the specification or harness, or change the unchanged 3% control gate. The comparison used old `229882fcca6a2f6e0b4cdadcfc3b1c2b72885b5b`, new `be7625f5c186d30c1db75e37695c2ddd7bb51f48`, and accepted harness blob `bde6e892159b639e340d399821b6036143332e76`. Both sides used rustc `1.97.0 (2d8144b78 2026-07-07)`, target `x86_64-unknown-linux-gnu`, and the default feature set `armour, bytemuck-codec, parking_lot, rapira-codec, replication, rpc, schema, typed-tree, var-collections`.

Each side was built once from a clean target directory with:

```text
env -u RUSTFLAGS -u CARGO_ENCODED_RUSTFLAGS cargo build --locked --offline --release -p armdb --example ab_harness
```

The old executable is SHA-256 `00f305caf8569eb27666ecd3e052508ae0216a81df5f5923aba7f2a46fa532f6` and 2,260,136 bytes; the new executable is SHA-256 `87d994b3f9854c5735184f25a8adfffbe7d8f862c4c24ff746f818cae2714811` and 2,259,280 bytes. The following section-relative symbol table is a compact extract from the final report and focused primary TSV; `different`/`equal` refer to normalized bodies, not raw placement.

| Emitted seam | Old address/size | New address/size | Normalized body |
| --- | --- | --- | :---: |
| typed Adapter Inspection `ordered_page` | `0xf1ba0/0x1b1` | `0xeaa50/0x1a6` | different |
| typed Adapter Inspection `metadata` | `0xf1e50/0x93` | `0xeacf0/0x93` | equal |
| typed PageAccumulator `push_with` | `0xff5d0/0x215` | `0x7eee0/0x1ff` | different |
| typed Access `try_scan_range` | `0x85050/0x1ea` | not emitted as a named symbol | different |
| var Adapter Inspection `ordered_page` | `0xf1f00/0x1b1` | `0xeada0/0x453` | different |
| zero Adapter Inspection `ordered_page` | `0xf22f0/0x1e2` | `0xeb500/0x1e2` | conservative normalized: different |

The typed `metadata` bodies normalize equal after relocation semantic resolution. The absent new `try_scan_range` name is not evidence of inlining. H2a is supported: generated hot-path emitted bodies and sizes differ even though the relevant logical source was unchanged. Placement/alignment differences are observed but do not establish H2b; anonymous or merged vtable identity remains inconclusive. Static evidence does not prove that this caused the measured historical `+5%..+7%` drift.

Combined with the same-binary result above, shared-vs-split runtime topology was neutral (`-0.7092%` for `read/typed_tree/page16`), while the historical binaries have a materially different generated Inspection path. Changing the control classification or gate therefore still requires an explicit protocol decision.

<details>
<summary>Complete /tmp/armdb-ab-rpc-registration-diagnostic.txt capture (diagnostic-only)</summary>

```text
deterministic RPC registration diagnostic
base_sha: be7625f5c186d30c1db75e37695c2ddd7bb51f48
harness_blob: bde6e892159b639e340d399821b6036143332e76
cpu_set: 0,1,2,3,4,5,6,7
requested_reps: 10
executable_sha256: 2612d4c14cbe7d8a8000404f35ca08f7f3496fb3208b6040fc3527a325ff66f4
topology_mapping: old=split new=shared
realised_order: old:split:attempt=1:position=1 -> new:shared:attempt=1:position=2 -> new:shared:attempt=2:position=1 -> old:split:attempt=2:position=2 -> old:split:attempt=3:position=1 -> new:shared:attempt=3:position=2 -> new:shared:attempt=4:position=1 -> old:split:attempt=4:position=2 -> old:split:attempt=5:position=1 -> new:shared:attempt=5:position=2 -> new:shared:attempt=6:position=1 -> old:split:attempt=6:position=2 -> old:split:attempt=7:position=1 -> new:shared:attempt=7:position=2 -> new:shared:attempt=8:position=1 -> old:split:attempt=8:position=2 -> old:split:attempt=9:position=1 -> new:shared:attempt=9:position=2 -> new:shared:attempt=10:position=1 -> old:split:attempt=10:position=2
build_count: 1
observation side=old topology=split scenario=read/typed_tree/get attempt=1 order_position=1 ns_per_op=189.891585 valid=true
observation side=old topology=split scenario=read/typed_tree/range16 attempt=1 order_position=1 ns_per_op=687.0936 valid=true
observation side=old topology=split scenario=read/typed_tree/range512 attempt=1 order_position=1 ns_per_op=15201.78 valid=true
observation side=old topology=split scenario=read/typed_tree/keys512 attempt=1 order_position=1 ns_per_op=7763.76 valid=true
observation side=old topology=split scenario=read/typed_tree/page16 attempt=1 order_position=1 ns_per_op=884.2442 valid=true
observation side=old topology=split scenario=read/typed_tree/page512 attempt=1 order_position=1 ns_per_op=28387.603333333333 valid=true
observation side=old topology=split scenario=read/zero_map/get attempt=1 order_position=1 ns_per_op=46.65601 valid=true
observation side=old topology=split scenario=read/zero_map/range16 attempt=1 order_position=1 ns_per_op=6319.859 valid=true
observation side=old topology=split scenario=read/zero_map/range512 attempt=1 order_position=1 ns_per_op=44634.71 valid=true
observation side=old topology=split scenario=read/zero_map/keys512 attempt=1 order_position=1 ns_per_op=15863.99 valid=true
observation side=old topology=split scenario=read/zero_map/page16 attempt=1 order_position=1 ns_per_op=2114.5932 valid=true
observation side=old topology=split scenario=read/zero_map/page512 attempt=1 order_position=1 ns_per_op=48221.52 valid=true
observation side=old topology=split scenario=read/var_typed_tree/get attempt=1 order_position=1 ns_per_op=834.865935 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range16 attempt=1 order_position=1 ns_per_op=10825.954 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range512 attempt=1 order_position=1 ns_per_op=334061.11 valid=true
observation side=old topology=split scenario=read/var_typed_tree/keys512 attempt=1 order_position=1 ns_per_op=318691.0466666667 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page16 attempt=1 order_position=1 ns_per_op=11248.873 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page512 attempt=1 order_position=1 ns_per_op=329635.38666666666 valid=true
observation side=new topology=shared scenario=read/typed_tree/get attempt=1 order_position=2 ns_per_op=196.267965 valid=true
observation side=new topology=shared scenario=read/typed_tree/range16 attempt=1 order_position=2 ns_per_op=714.8498 valid=true
observation side=new topology=shared scenario=read/typed_tree/range512 attempt=1 order_position=2 ns_per_op=15547.493333333334 valid=true
observation side=new topology=shared scenario=read/typed_tree/keys512 attempt=1 order_position=2 ns_per_op=7746.696666666667 valid=true
observation side=new topology=shared scenario=read/typed_tree/page16 attempt=1 order_position=2 ns_per_op=861.4816 valid=true
observation side=new topology=shared scenario=read/typed_tree/page512 attempt=1 order_position=2 ns_per_op=30617.16 valid=true
observation side=new topology=shared scenario=read/zero_map/get attempt=1 order_position=2 ns_per_op=46.22149 valid=true
observation side=new topology=shared scenario=read/zero_map/range16 attempt=1 order_position=2 ns_per_op=6279.5732 valid=true
observation side=new topology=shared scenario=read/zero_map/range512 attempt=1 order_position=2 ns_per_op=46124.276666666665 valid=true
observation side=new topology=shared scenario=read/zero_map/keys512 attempt=1 order_position=2 ns_per_op=16433.86 valid=true
observation side=new topology=shared scenario=read/zero_map/page16 attempt=1 order_position=2 ns_per_op=2249.2044 valid=true
observation side=new topology=shared scenario=read/zero_map/page512 attempt=1 order_position=2 ns_per_op=48565.29666666667 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/get attempt=1 order_position=2 ns_per_op=848.69251 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range16 attempt=1 order_position=2 ns_per_op=10916.4058 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range512 attempt=1 order_position=2 ns_per_op=339400.34 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/keys512 attempt=1 order_position=2 ns_per_op=320186.2866666667 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page16 attempt=1 order_position=2 ns_per_op=11568.3714 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page512 attempt=1 order_position=2 ns_per_op=329020.49333333335 valid=true
observation side=new topology=shared scenario=read/typed_tree/get attempt=2 order_position=1 ns_per_op=193.8912 valid=true
observation side=new topology=shared scenario=read/typed_tree/range16 attempt=2 order_position=1 ns_per_op=678.6678 valid=true
observation side=new topology=shared scenario=read/typed_tree/range512 attempt=2 order_position=1 ns_per_op=15244.66 valid=true
observation side=new topology=shared scenario=read/typed_tree/keys512 attempt=2 order_position=1 ns_per_op=7897.883333333333 valid=true
observation side=new topology=shared scenario=read/typed_tree/page16 attempt=2 order_position=1 ns_per_op=855.284 valid=true
observation side=new topology=shared scenario=read/typed_tree/page512 attempt=2 order_position=1 ns_per_op=28667.456666666665 valid=true
observation side=new topology=shared scenario=read/zero_map/get attempt=2 order_position=1 ns_per_op=46.431435 valid=true
observation side=new topology=shared scenario=read/zero_map/range16 attempt=2 order_position=1 ns_per_op=6336.9408 valid=true
observation side=new topology=shared scenario=read/zero_map/range512 attempt=2 order_position=1 ns_per_op=46194.67333333333 valid=true
observation side=new topology=shared scenario=read/zero_map/keys512 attempt=2 order_position=1 ns_per_op=16014.573333333334 valid=true
observation side=new topology=shared scenario=read/zero_map/page16 attempt=2 order_position=1 ns_per_op=2133.7272 valid=true
observation side=new topology=shared scenario=read/zero_map/page512 attempt=2 order_position=1 ns_per_op=48759.06 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/get attempt=2 order_position=1 ns_per_op=850.089575 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range16 attempt=2 order_position=1 ns_per_op=10694.6688 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range512 attempt=2 order_position=1 ns_per_op=336681.79 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/keys512 attempt=2 order_position=1 ns_per_op=322578.54333333333 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page16 attempt=2 order_position=1 ns_per_op=11435.3912 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page512 attempt=2 order_position=1 ns_per_op=328849.4633333333 valid=true
observation side=old topology=split scenario=read/typed_tree/get attempt=2 order_position=2 ns_per_op=199.04383 valid=true
observation side=old topology=split scenario=read/typed_tree/range16 attempt=2 order_position=2 ns_per_op=689.292 valid=true
observation side=old topology=split scenario=read/typed_tree/range512 attempt=2 order_position=2 ns_per_op=15288.806666666667 valid=true
observation side=old topology=split scenario=read/typed_tree/keys512 attempt=2 order_position=2 ns_per_op=7722.083333333333 valid=true
observation side=old topology=split scenario=read/typed_tree/page16 attempt=2 order_position=2 ns_per_op=873.2618 valid=true
observation side=old topology=split scenario=read/typed_tree/page512 attempt=2 order_position=2 ns_per_op=28531.57 valid=true
observation side=old topology=split scenario=read/zero_map/get attempt=2 order_position=2 ns_per_op=46.591335 valid=true
observation side=old topology=split scenario=read/zero_map/range16 attempt=2 order_position=2 ns_per_op=6272.7822 valid=true
observation side=old topology=split scenario=read/zero_map/range512 attempt=2 order_position=2 ns_per_op=44355.14666666667 valid=true
observation side=old topology=split scenario=read/zero_map/keys512 attempt=2 order_position=2 ns_per_op=15895.413333333334 valid=true
observation side=old topology=split scenario=read/zero_map/page16 attempt=2 order_position=2 ns_per_op=2100.4686 valid=true
observation side=old topology=split scenario=read/zero_map/page512 attempt=2 order_position=2 ns_per_op=48577.45333333333 valid=true
observation side=old topology=split scenario=read/var_typed_tree/get attempt=2 order_position=2 ns_per_op=851.152055 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range16 attempt=2 order_position=2 ns_per_op=10861.8708 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range512 attempt=2 order_position=2 ns_per_op=340456.74666666664 valid=true
observation side=old topology=split scenario=read/var_typed_tree/keys512 attempt=2 order_position=2 ns_per_op=316892.31666666665 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page16 attempt=2 order_position=2 ns_per_op=11444.0832 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page512 attempt=2 order_position=2 ns_per_op=328226.19 valid=true
observation side=old topology=split scenario=read/typed_tree/get attempt=3 order_position=1 ns_per_op=196.166765 valid=true
observation side=old topology=split scenario=read/typed_tree/range16 attempt=3 order_position=1 ns_per_op=694.183 valid=true
observation side=old topology=split scenario=read/typed_tree/range512 attempt=3 order_position=1 ns_per_op=15389.266666666666 valid=true
observation side=old topology=split scenario=read/typed_tree/keys512 attempt=3 order_position=1 ns_per_op=7853.596666666666 valid=true
observation side=old topology=split scenario=read/typed_tree/page16 attempt=3 order_position=1 ns_per_op=889.991 valid=true
observation side=old topology=split scenario=read/typed_tree/page512 attempt=3 order_position=1 ns_per_op=28249.236666666668 valid=true
observation side=old topology=split scenario=read/zero_map/get attempt=3 order_position=1 ns_per_op=46.58898 valid=true
observation side=old topology=split scenario=read/zero_map/range16 attempt=3 order_position=1 ns_per_op=6224.0544 valid=true
observation side=old topology=split scenario=read/zero_map/range512 attempt=3 order_position=1 ns_per_op=44952.903333333335 valid=true
observation side=old topology=split scenario=read/zero_map/keys512 attempt=3 order_position=1 ns_per_op=15896.15 valid=true
observation side=old topology=split scenario=read/zero_map/page16 attempt=3 order_position=1 ns_per_op=2138.967 valid=true
observation side=old topology=split scenario=read/zero_map/page512 attempt=3 order_position=1 ns_per_op=48880.556666666664 valid=true
observation side=old topology=split scenario=read/var_typed_tree/get attempt=3 order_position=1 ns_per_op=841.70498 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range16 attempt=3 order_position=1 ns_per_op=10736.5552 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range512 attempt=3 order_position=1 ns_per_op=333739.44666666666 valid=true
observation side=old topology=split scenario=read/var_typed_tree/keys512 attempt=3 order_position=1 ns_per_op=318601.25333333336 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page16 attempt=3 order_position=1 ns_per_op=11401.0682 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page512 attempt=3 order_position=1 ns_per_op=328481.0266666667 valid=true
observation side=new topology=shared scenario=read/typed_tree/get attempt=3 order_position=2 ns_per_op=186.36679 valid=true
observation side=new topology=shared scenario=read/typed_tree/range16 attempt=3 order_position=2 ns_per_op=714.2486 valid=true
observation side=new topology=shared scenario=read/typed_tree/range512 attempt=3 order_position=2 ns_per_op=15295.153333333334 valid=true
observation side=new topology=shared scenario=read/typed_tree/keys512 attempt=3 order_position=2 ns_per_op=7850.36 valid=true
observation side=new topology=shared scenario=read/typed_tree/page16 attempt=3 order_position=2 ns_per_op=917.9296 valid=true
observation side=new topology=shared scenario=read/typed_tree/page512 attempt=3 order_position=2 ns_per_op=29412.923333333332 valid=true
observation side=new topology=shared scenario=read/zero_map/get attempt=3 order_position=2 ns_per_op=47.050895 valid=true
observation side=new topology=shared scenario=read/zero_map/range16 attempt=3 order_position=2 ns_per_op=6283.1914 valid=true
observation side=new topology=shared scenario=read/zero_map/range512 attempt=3 order_position=2 ns_per_op=45028.113333333335 valid=true
observation side=new topology=shared scenario=read/zero_map/keys512 attempt=3 order_position=2 ns_per_op=16177.143333333333 valid=true
observation side=new topology=shared scenario=read/zero_map/page16 attempt=3 order_position=2 ns_per_op=2228.2346 valid=true
observation side=new topology=shared scenario=read/zero_map/page512 attempt=3 order_position=2 ns_per_op=50176.75666666667 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/get attempt=3 order_position=2 ns_per_op=842.5478 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range16 attempt=3 order_position=2 ns_per_op=10993.4578 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range512 attempt=3 order_position=2 ns_per_op=331550.9266666667 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/keys512 attempt=3 order_position=2 ns_per_op=328991.8466666667 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page16 attempt=3 order_position=2 ns_per_op=11526.9146 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page512 attempt=3 order_position=2 ns_per_op=330834.5466666667 valid=true
observation side=new topology=shared scenario=read/typed_tree/get attempt=4 order_position=1 ns_per_op=188.74611 valid=true
observation side=new topology=shared scenario=read/typed_tree/range16 attempt=4 order_position=1 ns_per_op=701.7992 valid=true
observation side=new topology=shared scenario=read/typed_tree/range512 attempt=4 order_position=1 ns_per_op=15261.823333333334 valid=true
observation side=new topology=shared scenario=read/typed_tree/keys512 attempt=4 order_position=1 ns_per_op=7876.206666666667 valid=true
observation side=new topology=shared scenario=read/typed_tree/page16 attempt=4 order_position=1 ns_per_op=867.1742 valid=true
observation side=new topology=shared scenario=read/typed_tree/page512 attempt=4 order_position=1 ns_per_op=28383.32 valid=true
observation side=new topology=shared scenario=read/zero_map/get attempt=4 order_position=1 ns_per_op=46.87577 valid=true
observation side=new topology=shared scenario=read/zero_map/range16 attempt=4 order_position=1 ns_per_op=6309.5148 valid=true
observation side=new topology=shared scenario=read/zero_map/range512 attempt=4 order_position=1 ns_per_op=44856.65666666667 valid=true
observation side=new topology=shared scenario=read/zero_map/keys512 attempt=4 order_position=1 ns_per_op=16217.253333333334 valid=true
observation side=new topology=shared scenario=read/zero_map/page16 attempt=4 order_position=1 ns_per_op=2115.3444 valid=true
observation side=new topology=shared scenario=read/zero_map/page512 attempt=4 order_position=1 ns_per_op=49493.74 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/get attempt=4 order_position=1 ns_per_op=840.3748 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range16 attempt=4 order_position=1 ns_per_op=10626.8846 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/range512 attempt=4 order_position=1 ns_per_op=332374.9033333333 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/keys512 attempt=4 order_position=1 ns_per_op=319992.5933333333 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page16 attempt=4 order_position=1 ns_per_op=11383.6552 valid=true
observation side=new topology=shared scenario=read/var_typed_tree/page512 attempt=4 order_position=1 ns_per_op=328377.7866666667 valid=true
observation side=old topology=split scenario=read/typed_tree/get attempt=4 order_position=2 ns_per_op=197.970345 valid=true
observation side=old topology=split scenario=read/typed_tree/range16 attempt=4 order_position=2 ns_per_op=688.9992 valid=true
observation side=old topology=split scenario=read/typed_tree/range512 attempt=4 order_position=2 ns_per_op=15547.326666666666 valid=true
observation side=old topology=split scenario=read/typed_tree/keys512 attempt=4 order_position=2 ns_per_op=7806.71 valid=true
observation side=old topology=split scenario=read/typed_tree/page16 attempt=4 order_position=2 ns_per_op=871.5524 valid=true
observation side=old topology=split scenario=read/typed_tree/page512 attempt=4 order_position=2 ns_per_op=28492.52666666667 valid=true
observation side=old topology=split scenario=read/zero_map/get attempt=4 order_position=2 ns_per_op=46.47491 valid=true
observation side=old topology=split scenario=read/zero_map/range16 attempt=4 order_position=2 ns_per_op=6201.3972 valid=true
observation side=old topology=split scenario=read/zero_map/range512 attempt=4 order_position=2 ns_per_op=44684.66333333333 valid=true
observation side=old topology=split scenario=read/zero_map/keys512 attempt=4 order_position=2 ns_per_op=16168.426666666666 valid=true
observation side=old topology=split scenario=read/zero_map/page16 attempt=4 order_position=2 ns_per_op=2113.0582 valid=true
observation side=old topology=split scenario=read/zero_map/page512 attempt=4 order_position=2 ns_per_op=48537.97666666667 valid=true
observation side=old topology=split scenario=read/var_typed_tree/get attempt=4 order_position=2 ns_per_op=851.97439 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range16 attempt=4 order_position=2 ns_per_op=10886.0496 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range512 attempt=4 order_position=2 ns_per_op=332536.73333333334 valid=true
observation side=old topology=split scenario=read/var_typed_tree/keys512 attempt=4 order_position=2 ns_per_op=320145.04 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page16 attempt=4 order_position=2 ns_per_op=11814.066 valid=true
observation side=old topology=split scenario=read/var_typed_tree/page512 attempt=4 order_position=2 ns_per_op=327753.87333333335 valid=true
observation side=old topology=split scenario=read/typed_tree/get attempt=5 order_position=1 ns_per_op=185.99373 valid=true
observation side=old topology=split scenario=read/typed_tree/range16 attempt=5 order_position=1 ns_per_op=702.8774 valid=true
observation side=old topology=split scenario=read/typed_tree/range512 attempt=5 order_position=1 ns_per_op=15319.13 valid=true
observation side=old topology=split scenario=read/typed_tree/keys512 attempt=5 order_position=1 ns_per_op=7718.843333333333 valid=true
observation side=old topology=split scenario=read/typed_tree/page16 attempt=5 order_position=1 ns_per_op=981.521 valid=true
observation side=old topology=split scenario=read/typed_tree/page512 attempt=5 order_position=1 ns_per_op=28438.123333333333 valid=true
observation side=old topology=split scenario=read/zero_map/get attempt=5 order_position=1 ns_per_op=46.51203 valid=true
observation side=old topology=split scenario=read/zero_map/range16 attempt=5 order_position=1 ns_per_op=6254.481 valid=true
observation side=old topology=split scenario=read/zero_map/range512 attempt=5 order_position=1 ns_per_op=44400.263333333336 valid=true
observation side=old topology=split scenario=read/zero_map/keys512 attempt=5 order_position=1 ns_per_op=15910.343333333334 valid=true
observation side=old topology=split scenario=read/zero_map/page16 attempt=5 order_position=1 ns_per_op=2113.022 valid=true
observation side=old topology=split scenario=read/zero_map/page512 attempt=5 order_position=1 ns_per_op=48612.08 valid=true
observation side=old topology=split scenario=read/var_typed_tree/get attempt=5 order_position=1 ns_per_op=857.191025 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range16 attempt=5 order_position=1 ns_per_op=10893.5914 valid=true
observation side=old topology=split scenario=read/var_typed_tree/range512 attempt=5 order_position=1 ns_per_op=336880.8933333333 valid=true
observation side=old topology=split scenario=read/var_typed_tree/keys512 attempt=5 order_position=1 ns_per_op=321773.49333333335 valid=true
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