Performance and stability improvements on all platforms.

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

Change-Id: I60947a508c05bf7e6f54192bb0165bdbf0bb3f5e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1660363
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.82@{#1}
Cr-Branched-From: 9b5635ee41897dd84ecba1187385bde93fe3d517-refs/heads/master@{#62191}