getrusage
getrusage
(PHP 4, PHP 5, PHP 7)
getrusage — Gets the current resource usages
Description
array getrusage ([ int $who = 0 ] )
This is an interface to getrusage(2). It gets data returned from the system call.
Parameters
-
who
-
If
who
is 1, getrusage will be called withRUSAGE_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.
Examples
Example #1 getrusage() example
<?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) ?>
Changelog
Version | Description |
---|---|
7.0.0 | This function is now supported on Windows. |
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
who
isRUSAGE_SELF
)- "ru_maxrss" (only if
who
isRUSAGE_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 withRUSAGE_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"
See Also
- Your system's man page on getrusage(2)
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.getrusage.php