All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jens Axboe <jens.axboe@oracle.com>
To: Jeff Moyer <jmoyer@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org,
	vgoyal@redhat.com
Subject: Re: [PATCH 0/4 v3] ext3/4: enhance fsync performance when using CFQ
Date: Thu, 15 Apr 2010 16:03:49 +0200	[thread overview]
Message-ID: <20100415140348.GB27497@kernel.dk> (raw)
In-Reply-To: <x494ojcj1tc.fsf@segfault.boston.devel.redhat.com>

On Thu, Apr 15 2010, Jeff Moyer wrote:
> Jens Axboe <jens.axboe@oracle.com> writes:
> 
> >> > This is starting to look better. Can you share what tests you did? I
> >> > tried reproducing with fs_mark last time and could not.
> >> 
> >> Did you use the fs_mark command line I (think I) had posted?  What
> >> storage were you using?
> >
> > No, I didn't see any references to example command lines. I tested on a
> > few single disks, rotating and SSD. I expected the single spinning disk
> > to show the problem to some extent at least, but there was no difference
> > observed with 64kb blocks.
> 
> Boy, I'm really slipping.  Try this one:
> 
> ./fs_mark -S 1 -D 100 -N 1000 -d /mnt/test/fs_mark -s 65536 -t 1 -w 4096

Thanks Jeff, I'll give it a spin :-)

-- 
Jens Axboe


      reply	other threads:[~2010-04-15 14:03 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-14 21:17 [PATCH 0/4 v3] ext3/4: enhance fsync performance when using CFQ Jeff Moyer
2010-04-14 21:17 ` [PATCH 1/4] cfq-iosched: Keep track of average think time for the sync-noidle workload Jeff Moyer
2010-04-14 21:37   ` Vivek Goyal
2010-04-14 23:06     ` Jeff Moyer
2010-04-14 21:17 ` [PATCH 2/4] block: Implement a blk_yield function to voluntarily give up the I/O scheduler Jeff Moyer
2010-04-14 21:46   ` Vivek Goyal
2010-04-15 10:33     ` Jens Axboe
2010-04-15 15:49       ` Jeff Moyer
2010-04-14 21:17 ` [PATCH 3/4] jbd: yield the device queue when waiting for commits Jeff Moyer
2010-04-14 21:17 ` [PATCH 4/4] jbd2: yield the device queue when waiting for journal commits Jeff Moyer
2010-04-15 10:33   ` Jens Axboe
2010-04-15 10:33 ` [PATCH 0/4 v3] ext3/4: enhance fsync performance when using CFQ Jens Axboe
2010-04-15 13:05   ` Jeff Moyer
2010-04-15 13:08     ` Jens Axboe
2010-04-15 13:13       ` Jeff Moyer
2010-04-15 14:03         ` Jens Axboe [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20100415140348.GB27497@kernel.dk \
    --to=jens.axboe@oracle.com \
    --cc=jmoyer@redhat.com \
    --cc=linux-ext4@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=vgoyal@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.