Gerald Squelart 499b5db10f Bug 1583868 - New profiler feature "nostacksampling" - r=gregtatum
Previously, the absence of "stackwalk", "leaf", and "javascript" implied that
the test/user didn't want any sampling, but this caused issues in some tests
that enabled "stackwalk" on platforms that didn't support stack-walking, which
ended up suppressing label-only stacks that the test expected.

we now have an explicit feature "nostacksampling" that disables backtraces from
the samplers in both profilers. This effectively cancels "stackwalk", "leaf",
and "javascript" if present.

Differential Revision: https://phabricator.services.mozilla.com/D47731

--HG--
extra : moz-landing-system : lando
2019-10-01 22:49:13 +00:00
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