[Webkit-unassigned] [Bug 78984] Performance tests should measure memory usage

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=78984





--- Comment #1 from Zoltan Horvath <zoltan at webkit.org>  2012-06-22 01:19:23 PST ---
Have we decided already what and how to measure?
On webkit.sed.hu we used to measure maximum resident set size of JSC benchmarks.

We have to decide either to use kernel level data or some WebKit internal measure system. The prior is already given for us, since the different systems support memory consumption monitoring somehow. 

* What to measure? (assume we use kernel level information)
 - maximum RSS [maxRSS](peak)
 - average memory consumption during the run [avgRSS]

* How to measure? (external tools case)
 - Linux: ps, /proc/*/smaps,stat,statm (polling) we can compute avgRSS, maxRSS
 - MAC: ps, sysctl, time we can compute avgRSS, maxRSS
 - Win: psapi, we can compute avgRSS, maxRSS

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