Struct sled::ConfigBuilder

source ·
pub struct ConfigBuilder { /* private fields */ }
Expand description

Top-level configuration for the system.


let _config = pagecache::ConfigBuilder::default()
// Read-only mode
let _config = pagecache::ConfigBuilder::default()


Returns a default ConfigBuilder

Set the path of the database (builder).

Set the merge operator that can be relied on during merges in the PageCache.

Finalize the configuration.


This function will panic if it is not possible to open the files for performing database IO, or if the provided configuration fails some basic sanity checks.

number of io buffers

size of each io flush buffer. MUST be multiple of 512!

b-link tree node size in bytes before splitting

page consolidation threshold

deletes the database after drop. if no path is set, uses /dev/shm on linux

whether to run in read-only mode

log base 2 of the number of cache shards

maximum size for the system page cache

whether to use zstd compression

the compression factor to use with zstd compression

number of ms between IO buffer flushes

number of operations between page table snapshots

the proportion of remaining valid pages in the segment

the cleanup threshold skew in percentage points between the first and last segments

the file segment selection mode

snapshot file location

print a performance profile when the Config is dropped

generated IDs are persisted at this interval. during recovery we skip twice this number

perform IO operations on a threadpool

set the number of threads in the IO threadpool. defaults to # logical CPUs.

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