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Ulan Degenbaev authored
This relands commit 496d0596. Original change's description: > [heap] Detect ineffective GCs near the heap limit. > > Currently V8 can enter CPU thrashing GC loop near the heap limit. In > such cases it is better to trigger an out-of-memory failure earlier to > avoid wasting CPU time and to avoid unresponsiveness. > > This patch adds a mechanism for tracking consecutive ineffective GCs. > A GC is considered ineffective if the heap size after the GC is still > close to the heap limit and if the average mutator utilization dropped > below a fixed threshold. > > V8 execution is aborted after four consecutive ineffective GCs. > > Bug: chromium:824214 TBR: hpayer@chromium.org Change-Id: Ib09d24d6280078ce6c33519309a2563c70fb68e1 Reviewed-on: https://chromium-review.googlesource.com/980555Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#52286}
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