Performance and stability improvements on all platforms.

TBR=v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com

Change-Id: I044cd8f0dcaebff1eb2de917d1bcf8f192d44fc2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1534957
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.5.86@{#1}
Cr-Branched-From: f936fb42582851dc8a9670d9d224ae8aa1c3f3f1-refs/heads/master@{#60397}