From: Gang Li <ligang.bdlg@bytedance.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Jonathan Corbet <corbet@lwn.net>, 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-api@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: Re: Re: Re: [PATCH v1] sched/numa: add per-process numa_balancing
Date: Tue, 9 Nov 2021 18:40:43 +0800 [thread overview]
Message-ID: <7de25e1b-e548-b8b5-dda5-6a2e001f3c1a@bytedance.com> (raw)
In-Reply-To: <20211109091951.GW3891@suse.de>
On 11/9/21 5:19 PM, Mel Gorman wrote:
> On Tue, Nov 09, 2021 at 04:28:28PM +0800, Gang Li wrote:
>> If the global tuning affects default behaviour and the prctl
>> affects specific behaviour. Then when prctl specifies
>> numa_balancing for a process, there is no way for the
>> global tuning to affect that process.
>
> While I think it's very likely that the common case will be to disable
> NUMA balancing for specific processes,
> prctl(PR_NUMA_BALANCING,PR_SET_NUMA_BALANCING,1) should still be
> meaningful.
>
I'm still a bit confused.
If we really want to enable/disable numa_balancing for all processes,
but some of them override the global numa_balancing using prctl, what
should we do?
Do we iterate through these processes to enable/disable them individually?
next prev parent reply other threads:[~2021-11-09 10:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-27 13:26 [PATCH v1] sched/numa: add per-process numa_balancing Gang Li
2021-10-28 15:30 ` Mel Gorman
2021-10-29 6:12 ` Gang Li
2021-10-29 8:37 ` Mel Gorman
2021-11-09 8:28 ` 李港
2021-11-09 9:19 ` Mel Gorman
2021-11-09 10:40 ` Gang Li [this message]
2021-11-09 12:12 ` Mel Gorman
2021-11-09 13:58 ` Gang Li
2021-11-09 16:26 ` Mel Gorman
2021-11-17 7:07 ` Gang Li
2021-11-17 8:29 ` Mel Gorman
2021-11-17 9:38 ` Gang Li
2021-11-17 10:10 ` Mel Gorman
2021-11-18 3:26 ` Gang Li
2021-11-18 8:58 ` Mel Gorman
2021-11-18 9:49 ` Gang Li
2021-10-29 7:48 ` [External] " 李港
2021-11-22 7:34 ` Gang Li
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