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From: Heinz Diehl <htd@fritha.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,
	Christoph Hellwig <hch@infradead.org>
Subject: Re: [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable
Date: Mon, 26 Jul 2010 18:15:00 +0200	[thread overview]
Message-ID: <20100726161500.GA8721@fritha.org> (raw)
In-Reply-To: <20100726134329.GB12449@redhat.com>

On 26.07.2010, Vivek Goyal wrote: 

> How do you measure it? IOW, are you running something else also on the
> desktop in the background. Like a heavy writer etc and then measuring
> how interactive desktop feels?

I used Linus' "bigfile torture test" in the background:

 while : ; do time sh -c "dd if=/dev/zero of=bigfile bs=8M count=256 ;
 sync; rm bigfile"; done

and Theodore Tso's "fsync-tester" to benchmark interactivity. 

Didn't save any results, wasn't expecting that this could be of any
further interest (but can run the tests one more time, if desired).

Thanks,
Heinz.

  parent reply	other threads:[~2010-07-26 16:15 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 ` [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable Heinz Diehl
2010-07-23 14:13   ` 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 [this message]
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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