From: Mel Gorman <mgorman@suse.de>
To: ?????? <yun.wang@linux.alibaba.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Kees Cook <keescook@chromium.org>,
Iurii Zaikin <yzaikin@google.com>,
Michal Koutn? <mkoutny@suse.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org,
"Paul E. McKenney" <paulmck@linux.ibm.com>
Subject: Re: [PATCH v2 2/3] sched/numa: expose per-task pages-migration-failure
Date: Wed, 27 Nov 2019 10:00:46 +0000 [thread overview]
Message-ID: <20191127100046.GM28938@suse.de> (raw)
In-Reply-To: <3931bf05-2939-0499-7660-8cc9a6f71c9a@linux.alibaba.com>
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
next prev parent reply other threads:[~2019-11-27 10:00 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-13 3:43 [PATCH 0/3] sched/numa: introduce advanced numa statistic 王贇
2019-11-13 3:44 ` [PATCH 1/3] sched/numa: advanced per-cgroup " 王贇
2019-11-13 3:45 ` [PATCH 2/3] sched/numa: expose per-task pages-migration-failure 王贇
2019-11-13 3:45 ` [PATCH 3/3] sched/numa: documentation for per-cgroup numa stat 王贇
2019-11-13 15:09 ` Jonathan Corbet
2019-11-14 1:52 ` 王贇
2019-11-13 18:28 ` Iurii Zaikin
2019-11-14 2:22 ` 王贇
2019-11-15 2:29 ` [PATCH v2 " 王贇
2019-11-20 9:45 ` [PATCH 0/3] sched/numa: introduce advanced numa statistic 王贇
2019-11-25 1:35 ` 王贇
2019-11-27 1:48 ` [PATCH v2 " 王贇
2019-11-27 1:49 ` [PATCH v2 1/3] sched/numa: advanced per-cgroup " 王贇
2019-11-27 10:19 ` Mel Gorman
2019-11-28 2:09 ` 王贇
2019-11-28 12:39 ` Michal Koutný
2019-11-28 13:41 ` 王贇
2019-11-28 15:58 ` Michal Koutný
2019-11-29 1:52 ` 王贇
2019-11-29 5:19 ` 王贇
2019-11-29 10:06 ` Michal Koutný
2019-12-02 2:11 ` 王贇
2019-11-27 1:50 ` [PATCH v2 2/3] sched/numa: expose per-task pages-migration-failure 王贇
2019-11-27 10:00 ` Mel Gorman [this message]
2019-12-02 2:22 ` 王贇
2019-11-27 1:50 ` [PATCH v2 3/3] sched/numa: documentation for per-cgroup numa stat 王贇
2019-11-27 4:58 ` Randy Dunlap
2019-11-27 5:54 ` 王贇
2019-12-03 5:59 ` [PATCH v3 0/2] sched/numa: introduce numa locality 王贇
2019-12-03 6:00 ` [PATCH v3 1/2] sched/numa: introduce per-cgroup NUMA locality info 王贇
2019-12-04 2:33 ` Randy Dunlap
2019-12-04 2:38 ` 王贇
2019-12-03 6:02 ` [PATCH v3 2/2] sched/numa: documentation for per-cgroup numa statistics 王贇
2019-12-03 13:43 ` Jonathan Corbet
2019-12-04 2:27 ` 王贇
2019-12-04 7:58 ` [PATCH v4 0/2] sched/numa: introduce numa locality 王贇
2019-12-04 7:59 ` [PATCH v4 1/2] sched/numa: introduce per-cgroup NUMA locality info 王贇
2019-12-05 3:28 ` Randy Dunlap
2019-12-05 3:29 ` Randy Dunlap
2019-12-05 3:52 ` 王贇
2019-12-04 8:00 ` [PATCH v4 2/2] sched/numa: documentation for per-cgroup numa statistics 王贇
2019-12-05 3:40 ` Randy Dunlap
2019-12-05 6:53 ` [PATCH v5 0/2] sched/numa: introduce numa locality 王贇
2019-12-05 6:53 ` [PATCH v5 1/2] sched/numa: introduce per-cgroup NUMA locality info 王贇
2019-12-05 6:54 ` [PATCH v5 2/2] sched/numa: documentation for per-cgroup numa, statistics 王贇
2019-12-10 2:19 ` [PATCH v5 0/2] sched/numa: introduce numa locality 王贇
2019-12-13 1:43 ` [PATCH v6 " 王贇
2019-12-13 1:47 ` [PATCH v6 1/2] sched/numa: introduce per-cgroup NUMA locality info 王贇
2020-01-03 15:14 ` Michal Koutný
2020-01-04 4:51 ` 王贇
2019-12-13 1:48 ` [PATCH v6 2/2] sched/numa: documentation for per-cgroup numa 王贇
2019-12-27 2:22 ` [PATCH v6 0/2] sched/numa: introduce numa locality 王贇
2020-01-17 2:19 ` 王贇
2020-01-19 6:08 ` [PATCH v7 " 王贇
2020-01-19 6:09 ` [PATCH v7 1/2] sched/numa: introduce per-cgroup NUMA locality info 王贇
2020-01-19 6:09 ` [PATCH v7 2/2] sched/numa: documentation for per-cgroup numa, statistics 王贇
2020-01-21 0:12 ` Randy Dunlap
2020-01-21 1:58 ` 王贇
2020-01-21 1:56 ` [PATCH v8 0/2] sched/numa: introduce numa locality 王贇
2020-01-21 1:57 ` [PATCH v8 1/2] sched/numa: introduce per-cgroup NUMA locality info 王贇
2020-01-21 1:57 ` [PATCH v8 2/2] sched/numa: documentation for per-cgroup numa, statistics 王贇
2020-01-21 2:08 ` Randy Dunlap
2020-02-07 1:10 ` [PATCH v8 0/2] sched/numa: introduce numa locality 王贇
2020-02-07 1:25 ` Steven Rostedt
2020-02-07 2:31 ` 王贇
2020-02-07 2:37 ` [PATCH RESEND " 王贇
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