Struct SnapshotStats 

pub struct SnapshotStats {
    pub total_snapshots: usize,
    pub total_pages: usize,
    pub shared_pages: usize,
    pub total_size_bytes: u64,
    pub cow_copies_made: u64,
}

Aggregate statistics for StorageSnapshotManager.

Fields

total_snapshots: usize

Number of snapshots currently held.

total_pages: usize

Total number of page versions in the page store (including dead ones not yet GC’d).

shared_pages: usize

Number of page versions referenced by two or more snapshots/current.

total_size_bytes: u64

Sum of data.len() for every page version in the store.

cow_copies_made: u64

Cumulative number of CoW copy operations performed since creation.

Trait Implementations

impl Clone for SnapshotStats

fn clone(&self) -> SnapshotStats

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SnapshotStats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SnapshotStats

fn default() -> SnapshotStats

Returns the “default value” for a type.

impl Eq for SnapshotStats

impl PartialEq for SnapshotStats

fn eq(&self, other: &SnapshotStats) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SnapshotStats