getrusage
Gets the current resource usages
Description
arrayfalse getrusage(int $mode = 0)
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.
Examples
Example #1 getrusage example
<?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)
echo $dat["ru_stime.tv_sec"]; // system time used (seconds)
?>
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"
See Also
- Your system's man page on getrusage(2)