Struct ResourceStatsSnapshot 

pub struct ResourceStatsSnapshot {
    pub allocated_bytes: usize,
    pub allocated_objects: usize,
    pub deallocated_bytes: usize,
    pub deallocated_objects: usize,
    pub cpu_time_nanos: u64,
}

Snapshot of allocation statistics for a group.

Fields

allocated_bytes: usize

Number of allocated bytes since the last snapshot.

allocated_objects: usize

Number of allocated objects since the last snapshot.

deallocated_bytes: usize

Number of deallocated bytes since the last snapshot.

deallocated_objects: usize

Number of deallocated objects since the last snapshot.

cpu_time_nanos: u64

Cumulative CPU time in nanoseconds consumed by this group since the last snapshot.

Implementations

impl ResourceStatsSnapshot

pub const fn empty() -> Self

Creates an empty ResourceStatsSnapshot.

pub fn live_bytes(&self) -> usize

Returns the number of live allocated bytes.

Saturates at zero rather than underflowing. The allocation and deallocation counters this is derived from are read independently, so a deallocation landing between the two reads can momentarily make the difference negative.

pub fn live_objects(&self) -> usize

Returns the number of live allocated objects.

Saturates at zero, for the same reason as live_bytes.

pub fn merge(&mut self, other: &Self)

Merges other into self.

This can be used to accumulate the total number of (de)allocated bytes and objects when handling the deltas generated from ResourceStats::consume.