Performance and stability improvements on all platforms.

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

Change-Id: If5272738ca2af382116edf9fc3f816a2a2db5ee0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1660120
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.75@{#1}
Cr-Branched-From: 0d8945853aff543bdb67de90b766da6bae8026f9-refs/heads/master@{#62167}