Performance and stability improvements on all platforms.

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

Change-Id: I0d44e85f63d21d41ba0d113f8f0aa3648cc31532
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1684422
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.177@{#1}
Cr-Branched-From: a7eb13315648b61652336da515c52e01b24354f8-refs/heads/master@{#62490}