From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [PATCH v5 0/6] memg: better numa scanning
Date: Wed, 10 Aug 2011 15:03:58 +0900 [thread overview]
Message-ID: <20110810150358.89290de4.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <20110810091544.d73c7775.kamezawa.hiroyu@jp.fujitsu.com>
On Wed, 10 Aug 2011 09:15:44 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> On Tue, 9 Aug 2011 16:33:14 +0200
> Michal Hocko <mhocko@suse.cz> wrote:
>
> > Hmm, 57% reduction of major page faults which doesn't fit with other
> > numbers. At least I do not see any corelation with them. Your workload
> > has freed more or less the same number of file pages (>1% less). Do you
> > have a theory for that?
> >
> > Is it possible that this is caused by "memcg: stop vmscan when enough
> > done."?
> >
>
I did more runs. In this time, I did 3 sequence of runs per test. Then, 2nd, 3rd
runs will see some garbage(file cache) of previous runs. cpuset is not used.
[Nopatch]
[1] 772.07user 308.73system 4:05.41elapsed 440%CPU (0avgtext+0avgdata 1458400maxresident)k
4519512inputs+7485704outputs (8078major+35671016minor)pagefaults 0swaps
[2] 774.19user 306.19system 4:03.05elapsed 444%CPU (0avgtext+0avgdata 1455472maxresident)k
4502272inputs+5168832outputs (7815major+35691489minor)pagefaults 0swaps
[3] 773.99user 310.71system 4:00.31elapsed 451%CPU (0avgtext+0avgdata 1458144maxresident)k
4518448inputs+8695352outputs (7768major+35683064minor)pagefaults 0swaps
[Patch 1-3 applied]
[1] 771.75user 312.82system 4:09.55elapsed 434%CPU (0avgtext+0avgdata 1458320maxresident)k
4413032inputs+7895152outputs (8793major+35691822minor)pagefaults 0swaps
[2] 772.66user 308.93system 4:15.22elapsed 423%CPU (0avgtext+0avgdata 1457504maxresident)k
4469120inputs+12484960outputs (10952major+35702053minor)pagefaults 0swaps
[3] 771.83user 305.53system 3:57.63elapsed 453%CPU (0avgtext+0avgdata 1457856maxresident)k
4355392inputs+5169560outputs (6985major+35680863minor)pagefaults 0swaps
[Full Patched]
[1] 771.19user 303.37system 3:49.47elapsed 468%CPU (0avgtext+0avgdata 1458400maxresident)k
4260032inputs+4919824outputs (5496major+35672873minor)pagefaults 0swaps
[2] 772.51user 305.90system 3:56.89elapsed 455%CPU (0avgtext+0avgdata 1458416maxresident)k
4463728inputs+4621496outputs (6301major+35671610minor)pagefaults 0swaps
[3] 773.14user 305.02system 3:55.09elapsed 458%CPU (0avgtext+0avgdata 1458240maxresident)k
4447088inputs+5190792outputs (5106major+35699087minor)pagefaults 0swaps
The patch 3 is require for patch 5 to work correctly (It makes node-selection unused.)
But it seems to be not more than that.
Thanks,
-Kame
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next prev parent reply other threads:[~2011-08-10 6:11 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-09 10:04 KAMEZAWA Hiroyuki
2011-08-09 10:08 ` [PATCH v5 1/6] " KAMEZAWA Hiroyuki
2011-08-10 10:00 ` Michal Hocko
2011-08-10 23:30 ` KAMEZAWA Hiroyuki
2011-08-10 23:44 ` [PATCH] memcg: fix comment on update nodemask KAMEZAWA Hiroyuki
2011-08-11 13:25 ` Michal Hocko
2011-08-09 10:09 ` [PATCH v5 2/6] memcg: stop vmscan when enough done KAMEZAWA Hiroyuki
2011-08-10 14:14 ` Michal Hocko
2011-08-10 23:52 ` KAMEZAWA Hiroyuki
2011-08-11 14:50 ` Michal Hocko
2011-08-12 12:44 ` [PATCH] memcg: add nr_pages argument for hierarchical reclaim Michal Hocko
2011-08-17 0:54 ` [PATCH v5 2/6] memcg: stop vmscan when enough done KAMEZAWA Hiroyuki
2011-08-17 11:35 ` Michal Hocko
2011-08-17 23:52 ` KAMEZAWA Hiroyuki
2011-08-18 6:27 ` Michal Hocko
2011-08-18 6:42 ` KAMEZAWA Hiroyuki
2011-08-18 7:46 ` Michal Hocko
2011-08-18 12:57 ` [PATCH v3] memcg: add nr_pages argument for hierarchical reclaim Michal Hocko
2011-08-18 13:58 ` Johannes Weiner
2011-08-18 14:40 ` Michal Hocko
2011-08-09 10:10 ` [PATCH v5 3/6] memg: vmscan pass nodemask KAMEZAWA Hiroyuki
2011-08-10 11:19 ` Michal Hocko
2011-08-10 23:43 ` KAMEZAWA Hiroyuki
2011-08-09 10:11 ` [PATCH v5 4/6] memg: calculate numa weight for vmscan KAMEZAWA Hiroyuki
2011-08-17 14:34 ` Michal Hocko
2011-08-18 0:17 ` KAMEZAWA Hiroyuki
2011-08-18 8:41 ` Michal Hocko
2011-08-19 0:06 ` KAMEZAWA Hiroyuki
2011-08-09 10:12 ` [PATCH v5 5/6] memg: vmscan select victim node by weight KAMEZAWA Hiroyuki
2011-08-18 13:34 ` Michal Hocko
2011-08-09 10:13 ` [PATCH v5 6/6] memg: do target scan if unbalanced KAMEZAWA Hiroyuki
2011-08-09 14:33 ` [PATCH v5 0/6] memg: better numa scanning Michal Hocko
2011-08-10 0:15 ` KAMEZAWA Hiroyuki
2011-08-10 6:03 ` KAMEZAWA Hiroyuki [this message]
2011-08-10 14:20 ` Michal Hocko
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