lakitu: Enable multiqueue writeback throttling
This will provide better performance isolation between faster disks
(PD-SSD) and slower disks (PD-standard).
BUG=b:120894869
TEST=manually verified the latency of fdatasync() stays at 2ms
RELEASE_NOTE=Set CONFIG_BLK_WBT_MQ=y to improve performance isolation on
PDs, to fix a bug observed in GKE.
Change-Id: I07dba5c761bb6638adcc1ef44bf5d83556a00414
Reviewed-on: https://chromium-review.googlesource.com/1390705
Commit-Ready: Xuewei Zhang <xueweiz@google.com>
Tested-by: Xuewei Zhang <xueweiz@google.com>
Reviewed-by: Ke Wu <mikewu@google.com>
(cherry picked from commit be058c2cbcc01c98c9a648bbad4a965e52454d34)
Reviewed-on: https://chromium-review.googlesource.com/c/1393494
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Commit-Queue: Xuewei Zhang <xueweiz@google.com>
2 files changed