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Re: e2fsck on ext3 is 10x slower than ext2



Hi,

On Tue, 2003-03-04 at 00:12, Tim Baverstock wrote:

> I'm using Debian. Is this a Redhat-only list, or is it only hosted by RedHat?

The latter -- all ext3 users are welcome here!

> I notice that the fsck takes a good ten times longer than under ext2, to 
> perform the cleanly unmounted check. (On the occasion where I did unmount 
> dirtily, the journals played back and things came up swiftly - huzzah.)

The only thing I can think of is that you may have started using non-DMA
access to the disk.  Did you rebuild your kernel when you went to ext3? 
It's possible that the new kernel build is not driving the disks with
DMA.  "hdparm" will tell you if the disk is using DMA or not.

Cheers,
 Stephen



> 
> I looked back through the last several months in these archives, but could 
> only find someone's fsck hanging - mine just takes a long time, and the 
> spinner sticks here and there.
> 
> I also notice that I can see .journal files, despite /proc/mounts showing 
> ext3 for all my disc-based filing systems.
> 
> I seem to be using e2fsck 1.27 (8-Mar-2002)
> 
> Linux vermillion 2.4.16-k6 #1 Wed Nov 28 10:34:08 EST 2001 i586 unknown
> 
> Is this a known problem?
> 
> Thanks in advance,
> 
> Tim Baverstock
> 
> -- 
> http://www.sable.demon.co.uk
> 
> 
> 
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> Ext3-users redhat com
> https://listman.redhat.com/mailman/listinfo/ext3-users






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