From: Michal Hocko <mhocko@suse.com>
To: Shakeel Butt <shakeelb@google.com>
Cc: "Johannes Weiner" <hannes@cmpxchg.org>,
"Roman Gushchin" <roman.gushchin@linux.dev>,
"Muchun Song" <songmuchun@bytedance.com>,
"Michal Koutný" <mkoutny@suse.com>,
"Eric Dumazet" <edumazet@google.com>,
"Soheil Hassas Yeganeh" <soheil@google.com>,
"Feng Tang" <feng.tang@intel.com>,
"Oliver Sang" <oliver.sang@intel.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
lkp@lists.01.org, Cgroups <cgroups@vger.kernel.org>,
"Linux MM" <linux-mm@kvack.org>, netdev <netdev@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/3] memcg: increase MEMCG_CHARGE_BATCH to 64
Date: Mon, 22 Aug 2022 17:22:39 +0200 [thread overview]
Message-ID: <YwOfP/6PtS8BxNhz@dhcp22.suse.cz> (raw)
In-Reply-To: <CALvZod5YGVSTvsg25P6goqyGEY21eVnahsXcs2BGsp6OXxLwsg@mail.gmail.com>
On Mon 22-08-22 08:09:01, Shakeel Butt wrote:
> On Mon, Aug 22, 2022 at 3:47 AM Michal Hocko <mhocko@suse.com> wrote:
> >
> [...]
> >
> > > To evaluate the impact of this optimization, on a 72 CPUs machine, we
> > > ran the following workload in a three level of cgroup hierarchy with top
> > > level having min and low setup appropriately. More specifically
> > > memory.min equal to size of netperf binary and memory.low double of
> > > that.
> >
> > a similar feedback to the test case description as with other patches.
>
> What more info should I add to the description? Why did I set up min
> and low or something else?
I do see why you wanted to keep the test consistent over those three
patches. I would just drop the reference to the protection configuration
because it likely doesn't make much of an impact, does it? It is the
multi cpu setup and false sharing that makes the real difference. Or am
I wrong in assuming that?
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2022-08-22 15:25 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-22 0:17 [PATCH 0/3] memcg: optimizatize charge codepath Shakeel Butt
2022-08-22 0:17 ` [PATCH 1/3] mm: page_counter: remove unneeded atomic ops for low/min Shakeel Butt
2022-08-22 0:20 ` Soheil Hassas Yeganeh
2022-08-22 2:39 ` Feng Tang
2022-08-22 9:55 ` Michal Hocko
2022-08-22 10:18 ` Michal Hocko
2022-08-22 14:55 ` Shakeel Butt
2022-08-22 15:20 ` Michal Hocko
2022-08-22 16:06 ` Shakeel Butt
2022-08-23 9:42 ` Michal Hocko
2022-08-22 18:23 ` Roman Gushchin
2022-08-22 0:17 ` [PATCH 2/3] mm: page_counter: rearrange struct page_counter fields Shakeel Butt
2022-08-22 0:24 ` Soheil Hassas Yeganeh
2022-08-22 4:55 ` Shakeel Butt
2022-08-22 13:06 ` Soheil Hassas Yeganeh
2022-08-22 2:10 ` Feng Tang
2022-08-22 4:59 ` Shakeel Butt
2022-08-22 10:23 ` Michal Hocko
2022-08-22 15:06 ` Shakeel Butt
2022-08-22 15:15 ` Michal Hocko
2022-08-22 16:04 ` Shakeel Butt
2022-08-22 18:27 ` Roman Gushchin
2022-08-22 0:17 ` [PATCH 3/3] memcg: increase MEMCG_CHARGE_BATCH to 64 Shakeel Butt
2022-08-22 0:24 ` Soheil Hassas Yeganeh
2022-08-22 2:30 ` Feng Tang
2022-08-22 10:47 ` Michal Hocko
2022-08-22 15:09 ` Shakeel Butt
2022-08-22 15:22 ` Michal Hocko [this message]
2022-08-22 16:07 ` Shakeel Butt
2022-08-22 18:37 ` Roman Gushchin
2022-08-22 19:34 ` Michal Hocko
2022-08-23 2:22 ` Roman Gushchin
2022-08-23 4:49 ` Michal Hocko
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=YwOfP/6PtS8BxNhz@dhcp22.suse.cz \
--to=mhocko@suse.com \
--cc=akpm@linux-foundation.org \
--cc=cgroups@vger.kernel.org \
--cc=edumazet@google.com \
--cc=feng.tang@intel.com \
--cc=hannes@cmpxchg.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lkp@lists.01.org \
--cc=mkoutny@suse.com \
--cc=netdev@vger.kernel.org \
--cc=oliver.sang@intel.com \
--cc=roman.gushchin@linux.dev \
--cc=shakeelb@google.com \
--cc=soheil@google.com \
--cc=songmuchun@bytedance.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).