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Date:	Fri, 03 Apr 2009 11:42:04 -0400
From:	Mark Lord <lkml@....ca>
To:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, tytso@....edu, drees76@...il.com,
	jesper@...gh.cc, linux-kernel@...r.kernel.org
Subject: Re: Linux 2.6.29

Lennart Sorensen wrote:
> On Fri, Apr 03, 2009 at 10:46:34AM -0400, Mark Lord wrote:
>> My Myth box here was running 2.6.18 when originally set up,
>> and even back then it still took *minutes* to delete large files.
>> So that part hasn't really changed much in the interim.
>>
>> Because of the multi-minute deletes, the distro shutdown scripts
>> would fails, and power off the box while it was still writing
>> to the drives.  Ouch.
>>
>> That system has had XFS on it for the past year and a half now,
>> and for Myth, there's no reason not to use XFS.  It's great!
> 
> Mythtv has a 'slow delete' option that I believe works by slowly
> truncating the file.  Seems they believe that ext3 is bad at handling
> large file deletes, so they try to spread out the pain.  I don't remember
> if that option is on by default or not.  I turned it off.
..


That option doesn't make much difference for the shutdown failure.
And with XFS there's no need for it, so I now have it "off".

Cheers

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