From: Dave Chinner <david@fromorbit.com>
To: Dave Hall <kdhall@binghamton.edu>
Cc: stan@hardwarefreak.com, "xfs@oss.sgi.com" <xfs@oss.sgi.com>
Subject: Re: xfs_fsr, sunit, and swidth
Date: Wed, 17 Apr 2013 02:18:41 +1000 [thread overview]
Message-ID: <20130416161841.GB13938@destitution> (raw)
In-Reply-To: <516C649A.8010003@binghamton.edu>
On Mon, Apr 15, 2013 at 04:35:38PM -0400, Dave Hall wrote:
> Stan,
>
> I understand that this will be an ongoing problem. It seems like
> all I could do at this point would be to ' manually defrag' my
> inodes the hard way by doing this 'copy' operation whenever things
> slow down. (Either that or go get my PHD in file systems and try to
> come up with a better inode management algorithm.)
No need, I know how to fix it for good. Just add a new btree that
tracks free inodes, rather than having to scan the allocated inode
tree to find free inodes. Shouldn't actually be too difficult to do,
as it's a generic btree and the code to keep both btrees in sync is
a copy of the way the two freespace btrees are kept in sync....
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2013-04-16 16:18 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-13 18:11 xfs_fsr, sunit, and swidth Dave Hall
2013-03-13 23:57 ` Dave Chinner
2013-03-14 0:03 ` Stan Hoeppner
[not found] ` <514153ED.3000405@binghamton.edu>
2013-03-14 12:26 ` Stan Hoeppner
2013-03-14 12:55 ` Stan Hoeppner
2013-03-14 14:59 ` Dave Hall
2013-03-14 18:07 ` Stefan Ring
2013-03-15 5:14 ` Stan Hoeppner
2013-03-15 11:45 ` Dave Chinner
2013-03-16 4:47 ` Stan Hoeppner
2013-03-16 7:21 ` Dave Chinner
2013-03-16 11:45 ` Stan Hoeppner
2013-03-25 17:00 ` Dave Hall
2013-03-27 21:16 ` Stan Hoeppner
2013-03-29 19:59 ` Dave Hall
2013-03-31 1:22 ` Dave Chinner
2013-04-02 10:34 ` Hans-Peter Jansen
2013-04-03 14:25 ` Dave Hall
2013-04-12 17:25 ` Dave Hall
2013-04-13 0:45 ` Dave Chinner
2013-04-13 0:51 ` Stan Hoeppner
2013-04-15 20:35 ` Dave Hall
2013-04-16 1:45 ` Stan Hoeppner
2013-04-16 16:18 ` Dave Chinner [this message]
2015-02-22 23:35 ` XFS/LVM/Multipath on a single RAID volume Dave Hall
2015-02-23 11:18 ` Emmanuel Florac
2015-02-24 22:04 ` Dave Hall
2015-02-24 22:33 ` Dave Chinner
[not found] ` <54ED01BC.6080302@binghamton.edu>
2015-02-24 23:33 ` Dave Chinner
2015-02-25 11:49 ` Emmanuel Florac
2015-02-25 11:21 ` Emmanuel Florac
2013-03-28 1:38 ` xfs_fsr, sunit, and swidth Dave Chinner
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