Struct IoCounters

pub struct IoCounters { /* private fields */ }

Process IO statistics.

For additional information of data provided, see proc.txt documentation, section 3.3 “/proc//io - Display the IO accounting fields”.

Implementations

impl IoCounters

pub fn chars_read(&self) -> Information

The number of bytes which this task has caused to be read from storage.

pub fn chars_written(&self) -> Information

The number of bytes which this task has caused, or shall cause to be written to disk.

pub fn read_syscalls(&self) -> u64

Attempt to count the number of read I/O operations, i.e. syscalls like read() and pread().

pub fn write_syscalls(&self) -> u64

Attempt to count the number of write I/O operations, i.e. syscalls like write() and pwrite().

pub fn bytes_read(&self) -> Information

Attempt to count the number of bytes which this process really did cause to be fetched from the storage layer.

pub fn bytes_written(&self) -> Information

Attempt to count the number of bytes which this process caused to be sent to the storage layer.

pub fn cancelled_write_bytes(&self) -> Information

The number of bytes which this process caused to not happen, by truncating pagecache.

Trait Implementations

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.

impl FromStr for IoCounters

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self>

Parses a string s to return a value of this type.