Struct ReaderStatistics 

#[non_exhaustive]
pub struct ReaderStatistics { /* private fields */ }

Cumulative performance counters for one shared EWF image reader.

Collection is opt-in through crate::OpenOptions::with_reader_statistics. Cloned crate::Image values and their cursors share the same counters.

Implementations

impl ReaderStatistics

pub fn cursors_created(&self) -> u64

Returns the number of logical-media and single-file cursors created.

pub fn segment_parses(&self) -> u64

Returns the number of segment metadata parses performed while opening.

pub fn segment_handle_opens(&self) -> u64

Returns the number of segment handles opened for the first time.

pub fn segment_handle_reopens(&self) -> u64

Returns the number of previously evicted segment handles reopened.

pub fn table_checksum_bytes(&self) -> u64

Returns the table-entry bytes processed for checksum validation.

pub fn table_checksum_nanos(&self) -> u64

Returns nanoseconds spent validating table-entry checksums.

pub fn chunk_cache_hits(&self) -> u64

Returns decoded chunk-cache hits.

pub fn chunk_cache_misses(&self) -> u64

Returns decoded chunk-cache misses.

pub fn table_page_cache_hits(&self) -> u64

Returns table-entry page-cache hits.

pub fn table_page_cache_misses(&self) -> u64

Returns table-entry page-cache misses.

pub fn encoded_bytes_read(&self) -> u64

Returns encoded chunk bytes read from segment files.

pub fn decoded_bytes(&self) -> u64

Returns decoded logical chunk bytes produced.

pub fn decompression_nanos(&self) -> u64

Returns nanoseconds spent decompressing chunks.

pub fn saturating_delta(self, earlier: Self) -> Self

Returns a field-wise saturating delta from an earlier snapshot.

Trait Implementations

impl Clone for ReaderStatistics

fn clone(&self) -> ReaderStatistics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReaderStatistics

impl Debug for ReaderStatistics

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

Formats the value using the given formatter.

impl Default for ReaderStatistics

fn default() -> ReaderStatistics

Returns the “default value” for a type.

impl Eq for ReaderStatistics

impl PartialEq for ReaderStatistics

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ReaderStatistics