From: Mel Gorman <mgorman@suse.de>
To: Honglei Wang <wanghonglei@didichuxing.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>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
linux-kernel@vger.kernel.org,
Honglei Wang <jameshongleiwang@126.com>
Subject: Re: [PATCH] sched/numa: initialize numa statistics when forking new task
Date: Tue, 18 Jan 2022 10:39:58 +0000 [thread overview]
Message-ID: <20220118103958.GT3301@suse.de> (raw)
In-Reply-To: <20220113133920.49900-1-wanghonglei@didichuxing.com>
On Thu, Jan 13, 2022 at 09:39:20PM +0800, Honglei Wang wrote:
> The child processes will inherit numa_pages_migrated and
> total_numa_faults from the parent. It means even if there is no numa
> fault happen on the child, the statistics in /proc/$pid of the child
> process might show huge amount. This is a bit weird. Let's initialize
> them when do fork.
>
> Signed-off-by: Honglei Wang <wanghonglei@didichuxing.com>
Acked-by: Mel Gorman <mgorman@suse.de>
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2022-01-18 10:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-13 13:39 [PATCH] sched/numa: initialize numa statistics when forking new task Honglei Wang
2022-01-17 15:45 ` Honglei Wang
2022-01-17 16:18 ` [PATCH] " Honglei Wang
2022-01-18 10:39 ` Mel Gorman [this message]
2022-01-28 7:40 ` [tip: sched/core] " tip-bot2 for Honglei Wang
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