[Webkit-unassigned] [Bug 214866] Profiler resolution is too low

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sat Mar 13 23:57:44 PST 2021


https://bugs.webkit.org/show_bug.cgi?id=214866

--- Comment #3 from radexpl at gmail.com ---
Hi Saam! I wanted to bump this thread and ask again whether it's possible to increase WebKit's profiler resolution -- or at least make it a configurable option.

I've just upgraded my Mac to an M1 machine, which exacerbates the issue even more -- the faster a dev machine is, the fewer samples for analysis I get.

BTW: I'm not very familiar with the ins and outs of sampling profiling, but I do wonder if instead of being a hardcoded timer, the profiler sampler rate shouldn't be calculated/estimated off of CPU's speed - so that a program would get roughly the same number of samples regardless of how fast a machine is.

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