linux-ext4 - Re: tune2fs -I 256 -- kind of slow?

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Message-ID: <20081014111759.GA8674@mit.edu>
Date:	Tue, 14 Oct 2008 07:17:59 -0400
From:	Theodore Tso <tytso@....edu>
To:	Paul Collins <paul@...ly.ondioline.org>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: tune2fs -I 256 -- kind of slow?

On Tue, Oct 14, 2008 at 05:48:05PM +1300, Paul Collins wrote:
> I just ran "tune2fs -I 256 /dev/sda3" and it took about an hour and
> forty minutes.  The filesystem is about 33GiB, 3/4 full, ~85,000 inodes.
> The machine is a 2.13GHz Core 2 Duo, SATA disk.  It seemed to be
> CPU-bound, soaking up a core for the whole run.  Does this sound right?
> 
> Running e2fsprogs 1.41.3-1 from Debian unstable.

You're not the first person to have reported this.  I don't think
anyone has had a chance to look at it, but it's something we clearly
need to pay attention to --- 33 GB isn't that big of a filesystem, as
filesystems go, and an hour and a half and being CPU bound is not a
good thing.

							- Ted
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