getrusage

PHP 4, PHP 5, PHP 7, PHP 8

getrusage - Gets the current resource usages

Manual

Code Examples

getrusage( [int$mode = 0] ): array|false

This is an interface to getrusage(2). It gets data returned from the system call.

Parameters

mode: If mode is 1, getrusage will be called with RUSAGE_CHILDREN.

Return Values

Returns an associative array containing the data returned from the system call. All entries are accessible by using their documented field names. Returns false on failure.

Notes

Note:

On Windows getrusage will only return the following members:

"ru_stime.tv_sec" "ru_stime.tv_usec" "ru_utime.tv_sec" "ru_utime.tv_usec" "ru_majflt" (only if mode is RUSAGE_SELF) "ru_maxrss" (only if mode is RUSAGE_SELF)

If getrusage is called with mode set to 1 (RUSAGE_CHILDREN), then resource usage for threads are collected (meaning that internally the function is called with RUSAGE_THREAD).

Note:

on BeOS 2000, only the following members are returned:

"ru_stime.tv_sec" "ru_stime.tv_usec" "ru_utime.tv_sec" "ru_utime.tv_usec"

Changelog

Version	Description
7.0.0	This function is now supported on Windows.

Example of getrusage

Show all examples for getrusage

<?php
$dat = getrusage();
echo $dat["ru_oublock"];       // number of block output operations
echo $dat["ru_inblock"];       // number of block input operations
echo $dat["ru_msgsnd"];        // number of IPC messages sent
echo $dat["ru_msgrcv"];        // number of IPC messages received
echo $dat["ru_maxrss"];        // maximum resident set size
echo $dat["ru_ixrss"];         // integral shared memory size
echo $dat["ru_idrss"];         // integral unshared data size
echo $dat["ru_minflt"];        // number of page reclaims (soft page faults)
echo $dat["ru_majflt"];        // number of page faults (hard page faults)
echo $dat["ru_nsignals"];      // number of signals received
echo $dat["ru_nvcsw"];         // number of voluntary context switches
echo $dat["ru_nivcsw"];        // number of involuntary context switches
echo $dat["ru_nswap"];         // number of swaps
echo $dat["ru_utime.tv_usec"]; // user time used (microseconds)
echo $dat["ru_utime.tv_sec"];  // user time used (seconds)
echo $dat["ru_stime.tv_usec"]; // system time used (microseconds)

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getrusage

Parameters

Return Values

Notes

Note:

Note:

Changelog

Example of getrusage

Function getrusage:

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