From: Heinz Diehl <htd@fancy-poultry.org>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: linux-kernel@vger.kernel.org, jaxboe@fusionio.com,
nauman@google.com, dpshah@google.com, guijianfeng@cn.fujitsu.com,
jmoyer@redhat.com, czoccolo@gmail.com
Subject: Re: [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable
Date: Fri, 23 Jul 2010 16:03:43 +0200 [thread overview]
Message-ID: <20100723140343.GA8478@fancy-poultry.org> (raw)
In-Reply-To: <1279834172-4227-1-git-send-email-vgoyal@redhat.com>
On 23.07.2010, Vivek Goyal wrote:
> This is V4 of the patchset which implements a new tunable group_idle and also
> implements IOPS mode for group fairness. Following are changes since V3.
[....]
Just for information: this patchset, applied to 2.6.35-rc6, gives about
20-25% increase in speed/throughput on my desktop system
(Phenom 2.5GHz Quadcore, 3 disks) with the tunables set according
to what you've used/reported here (the setup with slice_idle set to 0),
and it's measurable with fs_mark, too.
After 2 hours of hard testing, the machine remains stable and responsive.
next prev parent reply other threads:[~2010-07-23 14:04 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-22 21:29 [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable Vivek Goyal
2010-07-22 21:29 ` [PATCH 1/5] cfq-iosched: Do not idle on service tree if slice_idle=0 Vivek Goyal
2010-07-22 21:29 ` [PATCH 2/5] cfq-iosched: Implment IOPS mode for group scheduling Vivek Goyal
2010-07-27 5:47 ` Gui Jianfeng
2010-07-27 13:09 ` Vivek Goyal
2010-07-22 21:29 ` [PATCH 3/5] cfq-iosched: Implement a tunable group_idle Vivek Goyal
2010-07-22 21:29 ` [PATCH 4/5] cfq-iosched: Print number of sectors dispatched per cfqq slice Vivek Goyal
2010-07-22 21:29 ` [PATCH 5/5] cfq-iosched: Documentation update Vivek Goyal
2010-07-22 21:36 ` Randy Dunlap
2010-07-23 20:22 ` Vivek Goyal
2010-07-23 14:03 ` Heinz Diehl [this message]
2010-07-23 14:13 ` [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable Vivek Goyal
2010-07-23 14:56 ` Heinz Diehl
2010-07-23 18:37 ` Vivek Goyal
2010-07-24 8:06 ` Heinz Diehl
2010-07-26 13:43 ` Vivek Goyal
2010-07-26 13:48 ` Christoph Hellwig
2010-07-26 13:54 ` Vivek Goyal
2010-07-26 16:15 ` Heinz Diehl
2010-07-26 14:13 ` Christoph Hellwig
2010-07-27 7:48 ` Heinz Diehl
2010-07-28 20:22 ` Vivek Goyal
2010-07-28 23:57 ` Christoph Hellwig
2010-07-29 4:34 ` cfq fsync patch testing results (Was: Re: [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable) Vivek Goyal
2010-07-29 14:56 ` Vivek Goyal
2010-07-29 19:39 ` Jeff Moyer
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