(PHP 4, PHP 5, PHP 7)
getrusage — 获取当前资源使用状况
$who
= 0
] )这是 getrusage(2) 的接口。它返回了调用自系统的数据。
who
如果 who
是 1,getrusage 会使用
RUSAGE_CHILDREN
来调用。
返回了一个包含系统返回数据的关联数组。所以条目均可通过文档中字段的名称来访问。
Example #1 getrusage() 例子
<?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)
?>
版本 | 说明 |
---|---|
7.0.0 | 此函数现在开始支持 Windows。 |
Note:
在 Windows 上 getrusage() 仅会返回以下类型:
- "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:
在 BeOS 2000,仅会返回以下类型:
- "ru_stime.tv_sec"
- "ru_stime.tv_usec"
- "ru_utime.tv_sec"
- "ru_utime.tv_usec"