Re: XFS write speed down

xfs

Re: XFS write speed down

To:	Jan Engelhardt <jengelh@xxxxxxxxxx>
Subject:	Re: XFS write speed down
From:	Dave Chinner <david@xxxxxxxxxxxxx>
Date:	Fri, 30 Apr 2010 11:11:06 +1000
Cc:	xfs@xxxxxxxxxxx
In-reply-to:	<alpine.LSU.2.01.1004292322530.23248@xxxxxxxxxxxxxxx>
References:	<alpine.LSU.2.01.1004292322530.23248@xxxxxxxxxxxxxxx>
User-agent:	Mutt/1.5.20 (2009-06-14)

On Thu, Apr 29, 2010 at 11:46:33PM +0200, Jan Engelhardt wrote:
> Hi,
> 
> Running 2.6.33.2, I am observing this 
> 
> used-xfs$ time ( tar -xf /dev/shm/linux-2.6.33.3.tar ; sync )
> real    12m29.272s
> user    0m0.196s
> sys     0m3.028s

What was the last kernel you ran that didn't have this slowdown?
I see the same test on 2.6.32 to my 2.6TB RAID6 volume take
about 35s.

Can you post the output of "echo w > /proc/sysrq-trigger" while
your test is running?

Cheers,

Dave.

-- 
Dave Chinner
david@xxxxxxxxxxxxx

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
XFS write speed down, Jan Engelhardt Re: XFS write speed down, Dave Chinner <=

Previous by Date:	Re: xfs_growfs: XFS_IOC_FSGROWFSDATA xfsctl failed: Argument list too long, James Braid
Next by Date:	Re: [PATCH 3/3] xfsqa: build dbtest on debian platforms, Dave Chinner
Previous by Thread:	XFS write speed down, Jan Engelhardt
Next by Thread:	xfs_growfs: XFS_IOC_FSGROWFSDATA xfsctl failed: Argument list too long, Benjamin Lau
Indexes:	[Date] [Thread] [Top] [All Lists]