Struct Usage

pub struct Usage(/* private fields */);

Output of getrusage with information about resource usage. Some of the fields may be unused in some platforms, and will be always zeroed out. See their manuals for details.

Implementations

impl Usage

pub fn user_time(&self) -> TimeVal

Total amount of time spent executing in user mode.

pub fn system_time(&self) -> TimeVal

Total amount of time spent executing in kernel mode.

pub fn max_rss(&self) -> c_long

The resident set size at its peak, in kilobytes.

pub fn shared_integral(&self) -> c_long

Integral value expressed in kilobytes times ticks of execution indicating the amount of text memory shared with other processes.

pub fn unshared_data_integral(&self) -> c_long

Integral value expressed in kilobytes times ticks of execution indicating the amount of unshared memory used by data.

pub fn unshared_stack_integral(&self) -> c_long

Integral value expressed in kilobytes times ticks of execution indicating the amount of unshared memory used for stack space.

pub fn minor_page_faults(&self) -> c_long

Number of page faults that were served without resorting to I/O, with pages that have been allocated previously by the kernel.

pub fn major_page_faults(&self) -> c_long

Number of page faults that were served through I/O (i.e. swap).

pub fn full_swaps(&self) -> c_long

Number of times all of the memory was fully swapped out.

pub fn block_reads(&self) -> c_long

Number of times a read was done from a block device.

pub fn block_writes(&self) -> c_long

Number of times a write was done to a block device.

pub fn ipc_sends(&self) -> c_long

Number of IPC messages sent.

pub fn ipc_receives(&self) -> c_long

Number of IPC messages received.

pub fn signals(&self) -> c_long

Number of signals received.

pub fn voluntary_context_switches(&self) -> c_long

Number of times a context switch was voluntarily invoked.

pub fn involuntary_context_switches(&self) -> c_long

Number of times a context switch was imposed by the kernel (usually due to time slice expiring or preemption by a higher priority process).

Trait Implementations

impl AsMut<rusage> for Usage

fn as_mut(&mut self) -> &mut rusage

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<rusage> for Usage

fn as_ref(&self) -> &rusage

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Usage

fn clone(&self) -> Usage

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Usage

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

Formats the value using the given formatter.

impl Hash for Usage

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 for Usage

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for Usage

impl Eq for Usage

impl StructuralPartialEq for Usage