From: Ted Ts'o <tytso@mit.edu>
To: Eric Sandeen <sandeen@redhat.com>
Cc: ext4 development <linux-ext4@vger.kernel.org>,
Zeev Tarantov <zeev.tarantov@gmail.com>
Subject: Re: [PATCH] e2fsprogs: don't set stripe/stride to 1 block in mkfs
Date: Wed, 18 May 2011 13:20:24 -0400 [thread overview]
Message-ID: <20110518172024.GF29368@thunk.org> (raw)
In-Reply-To: <4D9A17F8.4000406@redhat.com>
On Mon, Apr 04, 2011 at 03:11:52PM -0400, Eric Sandeen wrote:
> Block devices may set minimum or optimal IO hints equal to
> blocksize; in this case there is really nothing for ext4
> to do with this information (i.e. search for a block-aligned
> allocation?) so don't set fs geometry with single-block
> values.
>
> Zeev also reported that with a block-sized stripe, the
> ext4 allocator spends time spinning in ext4_mb_scan_aligned(),
> oddly enough.
>
> Reported-by: Zeev Tarantov <zeev.tarantov@gmail.com>
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Applied to the maint branch of e2fsprogs (which will be merged up to
the next/master branches), thanks!!
- Ted
prev parent reply other threads:[~2011-05-18 17:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-04 19:11 [PATCH] e2fsprogs: don't set stripe/stride to 1 block in mkfs Eric Sandeen
2011-04-05 8:10 ` Andreas Dilger
2011-04-05 8:43 ` Zeev Tarantov
2011-04-05 16:39 ` Eric Sandeen
2011-04-05 16:56 ` Eric Sandeen
2011-04-05 22:21 ` Eric Sandeen
2011-04-06 6:51 ` Zeev Tarantov
2011-04-06 17:00 ` Eric Sandeen
2011-04-08 0:13 ` Andreas Dilger
2011-04-08 0:24 ` Eric Sandeen
2011-05-18 17:20 ` Ted Ts'o [this message]
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