Messages in this thread | | | Date | Wed, 27 Nov 2019 10:00:46 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH v2 2/3] sched/numa: expose per-task pages-migration-failure |
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On Wed, Nov 27, 2019 at 09:50:01AM +0800, ?????? wrote: > NUMA balancing will try to migrate pages between nodes, which > could caused by memory policy or numa group aggregation, while > the page migration could failed too for eg when the target node > run out of memory. > > Since this is critical to the performance, admin should know > how serious the problem is, and take actions before it causing > too much performance damage, thus this patch expose the counter > as 'migfailed' in '/proc/PID/sched'. > > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Michal Koutný <mkoutny@suse.com> > Suggested-by: Mel Gorman <mgorman@suse.de> > Signed-off-by: Michael Wang <yun.wang@linux.alibaba.com>
This patch can be treated independently of the rest of the series as it's not directly related.
Acked-by: Mel Gorman <mgorman@suse.de>
-- Mel Gorman SUSE Labs
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