Struct IoCounters 

pub struct IoCounters {
    pub bytes_read: u64,
    pub bytes_written: u64,
    pub read_ops: u64,
    pub write_ops: u64,
    pub read_time_s: f64,
    pub write_time_s: f64,
}

Aggregated I/O performance counters.

Fields

bytes_read: u64

Total bytes read across all operations.

bytes_written: u64

Total bytes written across all operations.

read_ops: u64

Number of read operations.

write_ops: u64

Number of write operations.

read_time_s: f64

Cumulative wall-clock time spent in read calls (seconds).

write_time_s: f64

Cumulative wall-clock time spent in write calls (seconds).

Implementations

impl IoCounters

pub fn new() -> Self

Create zeroed counters.

pub fn record_read(&mut self, bytes: u64, elapsed_s: f64)

Record a completed read operation.

pub fn record_write(&mut self, bytes: u64, elapsed_s: f64)

Record a completed write operation.

pub fn avg_read_bw_mb(&self) -> f64

Average read bandwidth in MB/s.

pub fn avg_write_bw_mb(&self) -> f64

Average write bandwidth in MB/s.

pub fn reset(&mut self)

Reset all counters to zero.

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

Merge another counter set into this one.

Trait Implementations

impl Clone for IoCounters

fn clone(&self) -> IoCounters

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IoCounters

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

Formats the value using the given formatter.

impl Default for IoCounters

fn default() -> IoCounters

Returns the “default value” for a type.