Struct cpu_time::ProcessTime

pub struct ProcessTime(_);

CPU Time Used by The Whole Process

This is an opaque type similar to std::time::Instant. Use elapsed() or duration_since() to get meaningful time deltas.

Implementations

impl ProcessTime

pub fn try_now() -> Result<Self>

Get current CPU time used by a process process

pub fn now() -> Self

Get current CPU time used by a process

Panics

If CLOCK_THREAD_CPUTIME_ID is not supported by the kernel.

On Linux, it was added in version 2.6.12 (year 2005).
On OpenBSD & FreeBSD support was added in 2013.
On MacOS, clock_gettime was not supported until Sierra (2016).

pub fn try_elapsed(&self) -> Result<Duration>

Returns the amount of CPU time used from the previous timestamp to now.

pub fn elapsed(&self) -> Duration

Returns the amount of CPU time used from the previous timestamp to now.

Panics

If ProcessTime::now() panics.

pub fn duration_since(&self, timestamp: Self) -> Duration

Returns the amount of CPU time used from the previous timestamp.

pub fn as_duration(&self) -> Duration

Returns the total amount of CPU time used from the program start.

Trait Implementations

impl Clone for ProcessTime

fn clone(&self) -> ProcessTime

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ProcessTime

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

Formats the value using the given formatter.

impl Hash for ProcessTime

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<ProcessTime> for ProcessTime

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ProcessTime

impl Eq for ProcessTime

impl StructuralEq for ProcessTime

impl StructuralPartialEq for ProcessTime