Struct Stats

Source

pub struct Stats {Show 21 fields
    pub resident_owned_bytes: u64,
    pub snapshot_bytes: u64,
    pub mapped_bytes: u64,
    pub mapped_resident_bytes: u64,
    pub segment_bytes: u64,
    pub active_segment_bytes: u64,
    pub retired_active_segment_bytes: u64,
    pub active_row_count: u64,
    pub tombstone_count: u64,
    pub tombstone_bytes: u64,
    pub wal_bytes: u64,
    pub cache_bytes: u64,
    pub temporary_bytes: u64,
    pub query_pool_bytes: u64,
    pub native_graph_bytes: u64,
    pub open_files: u64,
    pub active_queries: u64,
    pub active_snapshot_leases: u64,
    pub phys_footprint: Option<u64>,
    pub scans_by_reason: [u64; 7],
    pub graph_segments_served: u64,
}

Expand description

One point-in-time snapshot of resources owned by an open Store.

Fields§

§resident_owned_bytes: u64

Exact bytes in engine-owned anonymous allocation arenas and vectors.

§snapshot_bytes: u64

Exact bytes retained by published snapshot metadata and decoded views.

§mapped_bytes: u64

Exact byte length of the store’s live read-only mappings.

§mapped_resident_bytes: u64

Bytes in resident mapped pages, counted by mincore.

§segment_bytes: u64

Exact bytes in immutable segment mappings.

§active_segment_bytes: u64

Exact allocation capacity held by the currently published in-RAM active segment.

§retired_active_segment_bytes: u64

Exact allocation capacity held by retired active generations that are still pinned by admitted queries.

§active_row_count: u64

Exact number of rows currently represented by the in-RAM active segment.

§tombstone_count: u64

Exact number of in-memory active-segment tombstones.

§tombstone_bytes: u64

Exact bytes owned by active-segment tombstones.

§wal_bytes: u64

Exact bytes retained by the store’s in-memory WAL component. This is zero while Store has no WAL writer component.

§cache_bytes: u64

Exact bytes owned by reusable per-segment graph-search scratch caches.

§temporary_bytes: u64

Exact bytes in live, explicitly accounted temporary allocations.

§query_pool_bytes: u64

Exact capacity in bytes of the persistent query pool’s worker registry.

§native_graph_bytes: u64

Exact capacity in bytes of the native graph publication’s store-lifetime lease, mapping, preparation, and spill registries. This is zero while Store has no native graph publication.

§open_files: u64

Exact number of file descriptors retained by this store handle.

§active_queries: u64

Exact number of store-admitted queries that have not yet returned.

§active_snapshot_leases: u64

Exact number of snapshot leases held outside the published snapshot slot.

§phys_footprint: Option<u64>

Darwin’s TASK_VM_INFO physical-footprint kernel counter, or None on platforms where that counter does not exist.

§scans_by_reason: [u64; 7]

Monotonic count of successfully executed scan plans by typed reason.

§graph_segments_served: u64

Monotonic count of segment plans served by graph traversal.