Reland #2 "Add field trial testing config for...
Reland #2 "Add field trial testing config for BoostThreadPriorityOnLibraryLoadingAndBackgroundMode." This is a reland of 9d6a01ba //base now supports ::GetThreadPriority() returning 3, so this shouldn't cause problems on bots. https://crrev.com/712564 Original change's description: > Add field trial testing config for BoostThreadPriorityOnLibraryLoadingAndBackgroundMode. > > This experiment enables: > - Use THREAD_MODE_BACKGROUND_BEGIN/END to set the priority of > background threads. This affects memory and IO priority in addition > to CPU priority. > - Increase thread priority to "normal" in scopes where background > threads load modules. > > The expectation is that this will improve responsiveness of Chrome > (input delay, first contentful paint), without regressing jank. > > We are adding the testing config in preparation for enabling this > via Finch in M79. > > Bug: 973868 > Change-Id: I467cae12503e3ad724b665f3aebdaeb94e1325c9 > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1835023 > Commit-Queue: Robert Kaplow <rkaplow@chromium.org> > Reviewed-by: Robert Kaplow <rkaplow@chromium.org> > Auto-Submit: François Doray <fdoray@chromium.org> > Cr-Commit-Position: refs/heads/master@{#705960} TBR=rkaplow@chromium.org Bug: 973868 Change-Id: I26127cc8e545a1f187a806ed5247c6b91f2f4db0 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1899790Reviewed-by:François Doray <fdoray@chromium.org> Commit-Queue: François Doray <fdoray@chromium.org> Cr-Commit-Position: refs/heads/master@{#712713}
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