From: Calvin Walton <calvin.walton@kepstin.ca>
To: Josef Bacik <josef@redhat.com>
Cc: linux-btrfs@vger.kernel.org, Chris Mason <chris.mason@oracle.com>
Subject: Re: Boot speed/mount time regression with 3.4.0-rc2
Date: Mon, 09 Apr 2012 17:20:46 -0400 [thread overview]
Message-ID: <1334006446.2678.0.camel@ayu> (raw)
In-Reply-To: <20120409205429.GB6958@localhost.localdomain>
On Mon, 2012-04-09 at 16:54 -0400, Josef Bacik wrote:
> On Mon, Apr 09, 2012 at 01:10:04PM -0400, Calvin Walton wrote:
> > On Mon, 2012-04-09 at 11:53 -0400, Calvin Walton wrote:
> > > Hi,
> > >
> > > I have a system that's using a dracut-generated initramfs to mount a
> > > btrfs root. After upgrading to kernel 3.4.0-rc2 to test it out, I've
> > > noticed that the process of mounting the root filesystem takes much
> > > longer with 3.4.0-rc2 than it did with 3.3.1 - nearly 30 seconds slower!
> > And the bisect results are in:
> > 285ff5af6ce358e73f53b55c9efadd4335f4c2ff is the first bad commit
> > commit 285ff5af6ce358e73f53b55c9efadd4335f4c2ff
> > Author: Josef Bacik <josef@redhat.com>
> > Date: Fri Jan 13 15:27:45 2012 -0500
> >
> > Btrfs: remove the ideal caching code>
>
> Ok can you give this a whirl? You are going to have to boot/reboot a few times
> to let the cache get re-generated again to make sure it's taken effect, but
> hopefully this will help out. Thanks,
Unfortunately, it doesn't seem to help. Even after 3 or 4 reboots with
this patch applied I'm still seeing the same delay.
--
Calvin Walton <calvin.walton@kepstin.ca>
next prev parent reply other threads:[~2012-04-09 21:20 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-09 15:53 Boot speed/mount time regression with 3.4.0-rc2 Calvin Walton
2012-04-09 16:08 ` cwillu
2012-04-09 17:10 ` Calvin Walton
2012-04-09 17:14 ` Josef Bacik
2012-04-09 20:54 ` Josef Bacik
2012-04-09 21:20 ` Calvin Walton [this message]
2012-04-10 13:08 ` Josef Bacik
2012-04-10 15:16 ` Josef Bacik
2012-04-10 16:04 ` Calvin Walton
2012-04-10 16:29 ` David Sterba
2012-04-10 16:34 ` Calvin Walton
2012-04-11 15:26 ` Ahmet Inan
2012-04-11 17:04 ` Josef Bacik
2012-04-12 9:22 ` Ahmet Inan
2012-04-12 13:37 ` Josef Bacik
2012-04-12 14:23 ` Josef Bacik
2012-04-13 6:26 ` Ahmet Inan
2012-04-13 6:49 ` cwillu
2012-04-13 11:22 ` Ahmet Inan
[not found] ` <CAFDW0jKMEQ+oMN41euh1cMy4h+6Qntt5UL9+0HZw4r9SpDJVvQ@mail.gmail.com>
2012-04-13 12:57 ` cwillu
2012-04-13 13:20 ` Ahmet Inan
2012-04-13 13:47 ` Josef Bacik
2012-04-21 20:54 ` Ahmet Inan
2012-04-22 7:59 ` Sergei Trofimovich
2012-04-22 9:16 ` Ahmet Inan
2012-04-22 13:57 ` Ahmet Inan
2012-05-03 13:40 ` Ahmet Inan
2012-04-11 16:38 ` Chester
2012-04-11 18:24 ` Josef Bacik
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