tree 6c2fb8033446e833c93401bbd8093192ab21fc36
parent a8edbf618128e5893151f27b0d20827df1d150cf
author Adin Scannell <ascannell@google.com> 1658974990 +0000
committer Meena Shanmugam <meenashanmugam@google.com> 1659116687 +0000

lakitu: Enable CONFIG_SCHED_CORE in Linux kernel.

This option permits Core Scheduling, a means of coordinated task selection across SMT siblings. When enabled task selection ensures that all SMT siblings will execute a task from the same 'core group', forcing idle when no matching task is found.
Use of this feature includes:
  - mitigation of some (not all) SMT side channels;
  - limiting SMT interference to improve determinism and/or performance.

BUG=b/240497638
TEST=presubmit
RELEASE_NOTE=Enabled CONFIG_SCHED_CORE in the kernel config.

Signed-off-by: Adin Scannell <ascannell@google.com>
Change-Id: I7a921a44175c36a6a959f7755f1155dc6a23d013
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/35331
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Meena Shanmugam <meenashanmugam@google.com>