Messages in this thread | | | From | Mel Gorman <> | Subject | [PATCH 0/4] Follow-up "Fix excessive CPU usage during compaction" | Date | Mon, 15 May 2023 12:33:40 +0100 |
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The series "Fix excessive CPU usage during compaction" [1] attempted to fix a bug [2] but Vlastimil noted that the fix was incomplete [3]. While the series was merged, fast_find_migrateblock was still disabled. This series should fix the corner cases and allow 95e7a450b819 ("Revert "mm/compaction: fix set skip in fast_find_migrateblock"") to be safely reverted. Details on how many pageblocks are rescanned are in the changelog of the last patch.
[1] https://lore.kernel.org/r/20230125134434.18017-1-mgorman@techsingularity.net [2] https://bugzilla.suse.com/show_bug.cgi?id=1206848 [3] https://lore.kernel.org/r/a55cf026-a2f9-ef01-9a4c-398693e048ea@suse.cz
mm/compaction.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-)
-- 2.35.3
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