Struct mz_ore::lgbytes::LgBytesOpMetrics

pub struct LgBytesOpMetrics {
    heap: LgBytesRegionMetrics,
    mmap: LgBytesRegionMetrics,
    alloc_seconds: Counter,
    mmap_disabled_count: IntCounter,
    mmap_error_count: IntCounter,
    len_sizes: Histogram,
}

Available on crate features bytes_ and region only.

Metrics for an individual usage of LgBytes.

Fields

heap: LgBytesRegionMetrics

mmap: LgBytesRegionMetrics

alloc_seconds: Counter

mmap_disabled_count: IntCounter

mmap_error_count: IntCounter

len_sizes: Histogram

Implementations

impl LgBytesOpMetrics

pub fn new_region<T: Copy>(&self, capacity: usize) -> MetricsRegion<T>

Returns a new empty MetricsRegion to hold at least T elements.

pub fn try_mmap<T: AsRef<[u8]>>(&self, buf: T) -> LgBytes

Attempts to copy the given buf into an lgalloc managed file-based mapped region, falling back to a heap allocation.

pub fn try_mmap_region<T: Copy>( &self, buf: impl AsRef<[T]>, ) -> Result<MetricsRegion<T>, AllocError>

Attempts to copy the given buf into an lgalloc managed file-based mapped region.

pub fn heap_region<T: Copy>(&self, buf: Vec<T>) -> MetricsRegion<T>

Wraps the already owned buf into a Region::Heap with metrics.

Besides metrics, this is essentially a no-op.

fn metrics_region<T: Copy>(&self, buf: Region<T>) -> MetricsRegion<T>

Trait Implementations

impl Clone for LgBytesOpMetrics

fn clone(&self) -> LgBytesOpMetrics

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LgBytesOpMetrics

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

Formats the value using the given formatter.