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(parent: f92fa8e) | patch
dm cache policy smq: only demote entries in bottom half of the clean multiqueue
authorJoe Thornber <ejt@redhat.com>
Thu, 11 May 2017 09:07:34 +0000 (05:07 -0400)
committerMike Snitzer <snitzer@redhat.com>
Mon, 15 May 2017 01:54:32 +0000 (21:54 -0400)
commit821e6b62e6833b54eca6f131d2c507f7661a1a8e
tree4c77d6484c743c7cbd8b0138e336cb229b7194bftree | snapshot
parentf92fa8e4716a56116903b8871f437dc1fa105600commit | diff
dm cache policy smq: only demote entries in bottom half of the clean multiqueue

Heavy IO load may mean there are very few clean blocks in the cache, and
we risk demoting entries that get hit a lot.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm-cache-policy-smq.c diff | blob | history
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