From: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: nauman@google.com, dpshah@google.com, lizf@cn.fujitsu.com,
mikew@google.com, fchecconi@gmail.com, paolo.valente@unimore.it,
jens.axboe@oracle.com, ryov@valinux.co.jp,
fernando@intellilink.co.jp, s-uchida@ap.jp.nec.com,
taka@valinux.co.jp, arozansk@redhat.com, jmoyer@redhat.com,
oz-kernel@redhat.com, dhaval@linux.vnet.ibm.com,
balbir@linux.vnet.ibm.com, linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org, akpm@linux-foundation.org,
menage@google.com, peterz@infradead.org
Subject: Re: [RFC] IO Controller
Date: Thu, 02 Apr 2009 14:39:40 +0800 [thread overview]
Message-ID: <49D45DAC.2060508@cn.fujitsu.com> (raw)
In-Reply-To: <1236823015-4183-1-git-send-email-vgoyal@redhat.com>
Vivek Goyal wrote:
> Hi All,
>
> Here is another posting for IO controller patches. Last time I had posted
> RFC patches for an IO controller which did bio control per cgroup.
>
> http://lkml.org/lkml/2008/11/6/227
>
> One of the takeaway from the discussion in this thread was that let us
> implement a common layer which contains the proportional weight scheduling
> code which can be shared by all the IO schedulers.
>
Hi Vivek,
I did some tests on my *old* i386 box(with two concurrent dd running), and notice
that IO Controller doesn't work fine in such situation. But it can work perfectly
in my *new* x86 box. I dig into this problem, and i guess the major reason is that
my *old* i386 box is too slow, it can't ensure two running ioqs are always backlogged.
If that is the case, I happens to have a thought. when an ioq uses up it time slice,
we don't expire it immediately. May be we can give a piece of bonus time for idling
to wait new requests if this ioq's finish time and its ancestor's finish time are all
much smaller than other entities in each corresponding service tree.
--
Regards
Gui Jianfeng
next prev parent reply other threads:[~2009-04-02 6:41 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-12 1:56 [RFC] IO Controller Vivek Goyal
2009-03-12 1:56 ` [PATCH 01/10] Documentation Vivek Goyal
2009-03-12 7:11 ` Andrew Morton
2009-03-12 10:07 ` Ryo Tsuruta
2009-03-12 18:01 ` Vivek Goyal
2009-03-16 8:40 ` Ryo Tsuruta
2009-03-16 13:39 ` Vivek Goyal
2009-04-05 15:15 ` Andrea Righi
2009-04-06 6:50 ` Nauman Rafique
2009-04-07 6:40 ` Vivek Goyal
2009-04-08 20:37 ` Andrea Righi
2009-04-16 18:37 ` Vivek Goyal
2009-04-17 5:35 ` Dhaval Giani
2009-04-17 13:49 ` IO Controller discussion (Was: Re: [PATCH 01/10] Documentation) Vivek Goyal
2009-04-17 9:37 ` [PATCH 01/10] Documentation Andrea Righi
2009-04-17 14:13 ` IO controller discussion (Was: Re: [PATCH 01/10] Documentation) Vivek Goyal
2009-04-17 18:09 ` Nauman Rafique
2009-04-18 8:13 ` Andrea Righi
2009-04-19 12:59 ` Vivek Goyal
2009-04-19 13:08 ` Vivek Goyal
2009-04-17 22:38 ` Andrea Righi
2009-04-19 13:21 ` Vivek Goyal
2009-04-18 13:19 ` Balbir Singh
2009-04-19 13:45 ` Vivek Goyal
2009-04-19 15:53 ` Andrea Righi
2009-04-21 1:16 ` KAMEZAWA Hiroyuki
2009-04-19 4:35 ` Nauman Rafique
2009-03-12 7:45 ` [PATCH 01/10] Documentation Yang Hongyang
2009-03-12 13:51 ` Vivek Goyal
2009-03-12 10:00 ` Dhaval Giani
2009-03-12 14:04 ` Vivek Goyal
2009-03-12 14:48 ` Fabio Checconi
2009-03-12 15:03 ` Vivek Goyal
2009-03-18 7:23 ` Gui Jianfeng
2009-03-18 21:55 ` Vivek Goyal
2009-03-19 3:38 ` Gui Jianfeng
2009-03-24 5:32 ` Nauman Rafique
2009-03-24 12:58 ` Vivek Goyal
2009-03-24 18:14 ` Nauman Rafique
2009-03-24 18:29 ` Vivek Goyal
2009-03-24 18:41 ` Fabio Checconi
2009-03-24 18:35 ` Vivek Goyal
2009-03-24 18:49 ` Nauman Rafique
2009-03-24 19:04 ` Fabio Checconi
2009-03-12 10:24 ` Peter Zijlstra
2009-03-12 14:09 ` Vivek Goyal
2009-04-06 14:35 ` Balbir Singh
2009-04-06 22:00 ` Nauman Rafique
2009-04-07 5:59 ` Gui Jianfeng
2009-04-13 13:40 ` Vivek Goyal
2009-05-01 22:04 ` IKEDA, Munehiro
2009-05-01 22:45 ` IO Controller per cgroup request descriptors (Re: [PATCH 01/10] Documentation) Vivek Goyal
2009-05-01 23:39 ` Nauman Rafique
2009-05-04 17:18 ` IKEDA, Munehiro
2009-03-12 1:56 ` [PATCH 02/10] Common flat fair queuing code in elevaotor layer Vivek Goyal
2009-03-19 6:27 ` Gui Jianfeng
2009-03-27 8:30 ` [PATCH] IO Controller: Don't store the pid in single queue circumstances Gui Jianfeng
2009-03-27 13:52 ` Vivek Goyal
2009-04-02 4:06 ` [PATCH 02/10] Common flat fair queuing code in elevaotor layer Divyesh Shah
2009-04-02 13:52 ` Vivek Goyal
2009-03-12 1:56 ` [PATCH 03/10] Modify cfq to make use of flat elevator fair queuing Vivek Goyal
2009-03-12 1:56 ` [PATCH 04/10] Common hierarchical fair queuing code in elevaotor layer Vivek Goyal
2009-03-12 1:56 ` [PATCH 05/10] cfq changes to use " Vivek Goyal
2009-04-16 5:25 ` [PATCH] IO-Controller: Fix kernel panic after moving a task Gui Jianfeng
2009-04-16 19:15 ` Vivek Goyal
2009-03-12 1:56 ` [PATCH 06/10] Separate out queue and data Vivek Goyal
2009-03-12 1:56 ` [PATCH 07/10] Prepare elevator layer for single queue schedulers Vivek Goyal
2009-03-12 1:56 ` [PATCH 08/10] noop changes for hierarchical fair queuing Vivek Goyal
2009-03-12 1:56 ` [PATCH 09/10] deadline " Vivek Goyal
2009-03-12 1:56 ` [PATCH 10/10] anticipatory " Vivek Goyal
2009-03-27 6:58 ` [PATCH] IO Controller: No need to stop idling in as Gui Jianfeng
2009-03-27 14:05 ` Vivek Goyal
2009-03-30 1:09 ` Gui Jianfeng
2009-03-12 3:27 ` [RFC] IO Controller Takuya Yoshikawa
2009-03-12 6:40 ` anqin
2009-03-12 6:55 ` Li Zefan
2009-03-12 7:11 ` anqin
2009-03-12 14:57 ` Vivek Goyal
2009-03-12 13:46 ` Vivek Goyal
2009-03-12 13:43 ` Vivek Goyal
2009-04-02 6:39 ` Gui Jianfeng [this message]
2009-04-02 14:00 ` Vivek Goyal
2009-04-07 1:40 ` Gui Jianfeng
2009-04-07 6:40 ` Gui Jianfeng
2009-04-10 9:33 ` Gui Jianfeng
2009-04-10 17:49 ` Nauman Rafique
2009-04-13 13:09 ` Vivek Goyal
2009-04-22 3:04 ` Gui Jianfeng
2009-04-22 3:10 ` Nauman Rafique
2009-04-22 13:23 ` Vivek Goyal
2009-04-30 19:38 ` Nauman Rafique
2009-05-05 3:18 ` Gui Jianfeng
2009-05-01 1:25 ` Divyesh Shah
2009-05-01 2:45 ` Vivek Goyal
2009-05-01 3:00 ` Divyesh Shah
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