getrusage

(PHP 4, PHP 5, PHP 7)

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getrusage ([ int $who = 0 ] ) : array

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Example #1 getrusage() ����

<?php
$dat = getrusage();
echo $dat["ru_nswap"];         // number of swaps
echo $dat["ru_majflt"];        // number of page faults
echo $dat["ru_utime.tv_sec"];  // user time used (seconds)
echo $dat["ru_utime.tv_usec"]; // user time used (microseconds)
?>

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Note:

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

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

Note:

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

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  • ��ϵͳ�� getrusage(2) �� man page