getrusage

Gets the current resource usages (PHP 4, PHP 5)
array getrusage ( [int who] )

Example 1843. getrusage() example

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<?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)
?>

Code Examples / Notes » getrusage

php

The author of the article mentioned in the previous post says "Once I got a negative value for both times - I have absolutely no clue how that can happen.". This is because time in microseconds is not padded with zeros from the left, therefore, you cannot concatenate the two numbers. Instead, you should normalize the values and then add them up: $dat["ru_utime.tv_sec"]*1e6+$dat["ru_utime.tv_usec"];

ng4rrjanbiah

Here is a nice comment on benchmarking PHP codes using getrusage function http://blog.rompe.org/node/85 HTH, R. Rajesh Jeba Anbiah

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getrusage

Gets the current resource usages (PHP 4, PHP 5) array getrusage ( [int who] )

Example 1843. getrusage() example

Code Examples / Notes » getrusage

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Gets the current resource usages (PHP 4, PHP 5)
array getrusage ( [int who] )