From: Jens Axboe <axboe@kernel.dk>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: Justin TerAvest <teravest@google.com>,
Chad Talbott <ctalbott@google.com>,
Nauman Rafique <nauman@google.com>,
Divyesh Shah <dpshah@google.com>,
lkml <linux-kernel@vger.kernel.org>,
Gui Jianfeng <guijianfeng@cn.fujitsu.com>,
Corrado Zoccolo <czoccolo@gmail.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Greg Thelen <gthelen@google.com>
Subject: Re: Per iocontext request descriptor limits (Was: Re: RFC: default group_isolation to 1, remove option)
Date: Fri, 04 Mar 2011 12:01:41 +0100 [thread overview]
Message-ID: <4D70C695.4040205@kernel.dk> (raw)
In-Reply-To: <20110303180328.GH16720@redhat.com>
On 2011-03-03 19:03, Vivek Goyal wrote:
> On Thu, Mar 03, 2011 at 11:57:17AM -0500, Vivek Goyal wrote:
>
> [..]
>>> For now it's not a complicated effort, I already have a patch for this.
>>> If page tracking needs extra complexity, it'll have to remain in the
>>> page tracking code.
>>
>> Great. I am hoping once you get some free time, you will cleanup and post
>> that patch.
>
> Hmmm..., Now I got interested in this stuff. In case you would like to see
> your patch to be in and finding it hard to find time to clean it up, I can
> do that and repost and also fix any bugs.
I did an initial run on the plane:
http://git.kernel.dk/?p=linux-2.6-block.git;a=shortlog;h=refs/heads/for-2.6.39/ioc-rq-alloc
Not tested at all, so there are likely a few bugs. Congestion is gone,
we'll need to consider that. Before the device was either congested or
not congested, now the question to ask would be "is the device congested
for ME" as the answer will depend on who is asking.
--
Jens Axboe
next prev parent reply other threads:[~2011-03-04 11:01 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-01 0:19 RFC: default group_isolation to 1, remove option Justin TerAvest
2011-03-01 14:20 ` Vivek Goyal
2011-03-01 18:44 ` Justin TerAvest
2011-03-02 21:28 ` Vivek Goyal
2011-03-06 16:06 ` Andrea Righi
2011-03-03 3:45 ` Jens Axboe
2011-03-03 15:30 ` Per iocontext request descriptor limits (Was: Re: RFC: default group_isolation to 1, remove option) Vivek Goyal
2011-03-03 15:44 ` Jens Axboe
2011-03-03 16:57 ` Vivek Goyal
2011-03-03 18:03 ` Vivek Goyal
2011-03-04 11:01 ` Jens Axboe [this message]
2011-03-04 21:31 ` Vivek Goyal
2011-03-04 21:34 ` Jens Axboe
2011-03-07 18:20 ` RFC: default group_isolation to 1, remove option Justin TerAvest
2011-03-07 19:39 ` Jens Axboe
2011-03-07 20:24 ` Vivek Goyal
2011-03-07 20:32 ` Jens Axboe
2011-03-07 20:46 ` Vivek Goyal
2011-03-07 20:47 ` Jens Axboe
2011-03-07 23:41 ` Justin TerAvest
2011-03-08 0:05 ` Vivek Goyal
2011-03-07 20:34 ` Vivek Goyal
2011-03-07 20:36 ` Jens Axboe
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