From: Eric Sandeen <sandeen@redhat.com>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
Alan Piszcz <ap@solarrain.com>
Subject: Re: EXT4 is ~2X as slow as XFS (593MB/s vs 304MB/s) for writes?
Date: Fri, 26 Feb 2010 19:28:40 -0600 [thread overview]
Message-ID: <4B887548.50508@redhat.com> (raw)
In-Reply-To: <4B887160.2090606@redhat.com>
Eric Sandeen wrote:
> Justin Piszcz wrote:
> ...
>
>>> Were the filesystems created to align with raid geometry?
>> Only default options were used except the mount options. If that is the
>> culprit, I have some more testing to do, thanks, will look into it.
>>
>>> mkfs.xfs has done that forever; mkfs.ext4 only will do so (automatically)
>>> with recent kernel+e2fsprogs.
>> How recent?
>
> You're recent enough. :)
Oh, you need very recent util-linux-ng as well, and use libblkid from there
with:
[e2fsprogs] # ./configure --disable-libblkid
Otherwise you can just feed mkfs.ext4 stripe & stride manually.
-Eric
next prev parent reply other threads:[~2010-02-27 1:28 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-27 0:31 EXT4 is ~2X as slow as XFS (593MB/s vs 304MB/s) for writes? Justin Piszcz
2010-02-27 0:46 ` Dmitry Monakhov
2010-02-27 1:05 ` Justin Piszcz
2010-02-27 0:51 ` Eric Sandeen
2010-02-27 1:08 ` Justin Piszcz
2010-02-27 1:12 ` Eric Sandeen
2010-02-27 1:28 ` Eric Sandeen [this message]
2010-02-27 10:14 ` Justin Piszcz
2010-02-27 10:51 ` Justin Piszcz
2010-02-27 11:09 ` Justin Piszcz
2010-02-27 11:36 ` Justin Piszcz
2010-02-28 5:42 ` tytso
2010-02-28 14:55 ` Justin Piszcz
2010-03-01 8:39 ` Andreas Dilger
2010-03-01 9:21 ` Justin Piszcz
2010-03-01 14:48 ` Michael Tokarev
2010-03-01 15:07 ` Justin Piszcz
2010-03-01 16:15 ` Eric Sandeen
2010-02-28 23:50 ` Dave Chinner
2010-03-02 0:08 ` Eric Sandeen
2010-03-02 0:37 ` Eric Sandeen
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