(PHP 3>= 3.0.7, PHP 4 )

getrusage -- Gets the current resource usages


array getrusage ( [int who])

This is an interface to getrusage(2). It returns an associative array containing the data returned from the system call. If who is 1, getrusage will be called with RUSAGE_CHILDREN.

All entries are accessible by using their documented field names.

例子 1. getrusage() example

= getrusage();
$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)
See your system's man page on getrusage(2) for more details.

注: 该函数不适用于 Windows 平台!

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