linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Peter Zijlstra <peterz@infradead.org>
To: 王贇 <yun.wang@linux.alibaba.com>
Cc: hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com,
	Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [RFC PATCH 2/5] numa: append per-node execution info in memory.numa_stat
Date: Tue, 23 Apr 2019 10:52:48 +0200	[thread overview]
Message-ID: <20190423085248.GE11158@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <7be82809-79d3-f6a1-dfe8-dd14d2b35219@linux.alibaba.com>

On Mon, Apr 22, 2019 at 10:12:20AM +0800, 王贇 wrote:
> This patch introduced numa execution information, to imply the numa
> efficiency.
> 
> By doing 'cat /sys/fs/cgroup/memory/CGROUP_PATH/memory.numa_stat', we
> see new output line heading with 'exectime', like:
> 
>   exectime 24399843 27865444
> 
> which means the tasks of this cgroup executed 24399843 ticks on node 0,
> and 27865444 ticks on node 1.

I think we stopped reporting time in HZ to userspace a long long time
ago. Please don't do that.

  reply	other threads:[~2019-04-23  8:52 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-22  2:10 [RFC PATCH 0/5] NUMA Balancer Suite 王贇
2019-04-22  2:11 ` [RFC PATCH 1/5] numa: introduce per-cgroup numa balancing locality, statistic 王贇
2019-04-23  8:44   ` Peter Zijlstra
2019-04-23  9:14     ` 王贇
2019-04-23  8:46   ` Peter Zijlstra
2019-04-23  9:32     ` 王贇
2019-04-23  8:47   ` Peter Zijlstra
2019-04-23  9:33     ` 王贇
2019-04-23  9:46       ` Peter Zijlstra
2019-04-22  2:12 ` [RFC PATCH 2/5] numa: append per-node execution info in memory.numa_stat 王贇
2019-04-23  8:52   ` Peter Zijlstra [this message]
2019-04-23  9:36     ` 王贇
2019-04-23  9:46       ` Peter Zijlstra
2019-04-23 10:01         ` 王贇
2019-04-22  2:13 ` [RFC PATCH 3/5] numa: introduce per-cgroup preferred numa node 王贇
2019-04-23  8:55   ` Peter Zijlstra
2019-04-23  9:41     ` 王贇
2019-04-22  2:14 ` [RFC PATCH 4/5] numa: introduce numa balancer infrastructure 王贇
2019-04-22  2:21 ` [RFC PATCH 5/5] numa: numa balancer 王贇
2019-04-23  9:05   ` Peter Zijlstra
2019-04-23  9:59     ` 王贇
     [not found] ` <CAHCio2gEw4xyuoiurvwzvEiU8eLas+5ZLhzmqm1V2CJqvt+cyA@mail.gmail.com>
2019-04-23  2:14   ` [RFC PATCH 0/5] NUMA Balancer Suite 王贇
2019-07-03  3:26 ` [PATCH 0/4] per cpu cgroup numa suite 王贇
2019-07-03  3:28   ` [PATCH 1/4] numa: introduce per-cgroup numa balancing locality, statistic 王贇
2019-07-11 13:43     ` Peter Zijlstra
2019-07-12  3:15       ` 王贇
2019-07-11 13:47     ` Peter Zijlstra
2019-07-12  3:43       ` 王贇
2019-07-12  7:58         ` Peter Zijlstra
2019-07-12  9:11           ` 王贇
2019-07-12  9:42             ` Peter Zijlstra
2019-07-12 10:10               ` 王贇
2019-07-15  2:09                 ` 王贇
2019-07-15 12:10                 ` Michal Koutný
2019-07-16  2:41                   ` 王贇
2019-07-19 16:47                     ` Michal Koutný
2019-07-03  3:29   ` [PATCH 2/4] numa: append per-node execution info in memory.numa_stat 王贇
2019-07-11 13:45     ` Peter Zijlstra
2019-07-12  3:17       ` 王贇
2019-07-03  3:32   ` [PATCH 3/4] numa: introduce numa group per task group 王贇
2019-07-11 14:10     ` Peter Zijlstra
2019-07-12  4:03       ` 王贇
2019-07-03  3:34   ` [PATCH 4/4] numa: introduce numa cling feature 王贇
2019-07-08  2:25     ` [PATCH v2 " 王贇
2019-07-09  2:15       ` 王贇
2019-07-09  2:24       ` [PATCH v3 " 王贇
2019-07-11 14:27     ` [PATCH " Peter Zijlstra
2019-07-12  3:10       ` 王贇
2019-07-12  7:53         ` Peter Zijlstra
2019-07-12  8:58           ` 王贇
2019-07-22  3:44             ` 王贇
2019-07-11  9:00   ` [PATCH 0/4] per cgroup numa suite 王贇
2019-07-16  3:38   ` [PATCH v2 0/4] per-cgroup " 王贇
2019-07-16  3:39     ` [PATCH v2 1/4] numa: introduce per-cgroup numa balancing locality statistic 王贇
2019-07-16  3:40     ` [PATCH v2 2/4] numa: append per-node execution time in cpu.numa_stat 王贇
2019-07-19 16:39       ` Michal Koutný
2019-07-22  2:36         ` 王贇
2019-07-16  3:41     ` [PATCH v2 3/4] numa: introduce numa group per task group 王贇
2019-07-16  3:41     ` [PATCH v4 4/4] numa: introduce numa cling feature 王贇
2019-07-22  2:37       ` [PATCH v5 " 王贇
2019-07-25  2:33     ` [PATCH v2 0/4] per-cgroup numa suite 王贇
2019-08-06  1:33     ` 王贇

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190423085248.GE11158@hirez.programming.kicks-ass.net \
    --to=peterz@infradead.org \
    --cc=hannes@cmpxchg.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mhocko@kernel.org \
    --cc=mingo@redhat.com \
    --cc=vdavydov.dev@gmail.com \
    --cc=yun.wang@linux.alibaba.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).