Determine how much resources a PHP script is using (CPU percentage and memory)

Question

I am currently using the library xhproffor forked tideways.io to perform profiling myscript.php. From xhprofI can get walltime, cputime, memoryusageand peakmemoryusage. I am trying to test the symfony console - so I am adding TIDEWAYS_ENABLE()on my own ConsoleCommandEventand TIDEWAYS_DISABLEon ConsoleTerminateEvent.

Questions:

• How can I determine if myscript.php, how many percent of the processor is consuming ? Can I just calculate the percentage cpuusage = cputime / realtimeas indicated here on serverfault ?
• Given memoryusage (mu)and peakmemoryusage (pmu)from xhprofprofiler, how do I convert or calculate its use ram? (the topresult is much higher than memoryusage, but somehow close to the value peakmemoryusage, so can I say that the ramvalue is used peakmemoryusage?

Notes:

• This is different from this. How can I get processor and memory usage because I want not system load. ps can work several at the same time scripts.php.

Answer 1

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