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From: Geoffrey Wehrman <gwehrman@sgi.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 00/14] repair memory usage reductions
Date: Thu, 3 Sep 2009 15:49:40 -0500	[thread overview]
Message-ID: <20090903204940.GB24510@sgi.com> (raw)
In-Reply-To: <20090902175531.469184575@bombadil.infradead.org>

On Wed, Sep 02, 2009 at 01:55:31PM -0400, Christoph Hellwig wrote:
| This is a respin of the patches Barry Naujok wrote at SGI for reducing
| the memory usage in repair.  I've split it up, fixed a few small bugs
| and added two preparatory cleanups - but all the real work is Barry's.
| There has been lots of heavy testing on large filesystems by Barry
| on the original patches, and quite a lot of testing on slightly smaller
| filesystems by me.  These were all ad-hoc tests as XFSQA coverage is
| rather low on repair.  My plan is to add various additional testcase
| for XFSQA both for intentional corruptions as well as reproducing past
| reported bugs before we'll release these patches in xfsprogs.  But I think
| it would be good if we could get them into the development git tree to
| get wider coverage already.

How do these changes affect xfs_repair I/O performance?  Barry changes
were previously withheld within SGI due to a regression in performance.


-- 
Geoffrey Wehrman  651-683-5496  gwehrman@sgi.com

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  parent reply	other threads:[~2009-09-03 20:56 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-02 17:55 [PATCH 00/14] repair memory usage reductions Christoph Hellwig
2009-09-02 17:55 ` [PATCH 01/14] repair: merge scanfunc_bno and scanfunc_cnt Christoph Hellwig
2009-10-12 16:53   ` Eric Sandeen
2009-10-13 22:13     ` Christoph Hellwig
2009-10-13 23:36       ` Alex Elder
2009-09-02 17:55 ` [PATCH 02/14] repair: reduce byte swap operations in scanfunc_allocbt Christoph Hellwig
2009-10-12 17:18   ` Eric Sandeen
2009-10-13 23:37     ` [PATCH 02/14] repair: reduce byte swap operations inscanfunc_allocbt Alex Elder
2009-09-02 17:55 ` [PATCH 03/14] repair: kill B_IS_META flag Christoph Hellwig
2009-10-12 19:45   ` Eric Sandeen
2009-10-13 22:16     ` Christoph Hellwig
2009-10-13 22:19       ` Eric Sandeen
2009-10-13 23:38         ` Alex Elder
2009-09-02 17:55 ` [PATCH 04/14] repair: split up scanfunc_ino Christoph Hellwig
2009-10-12 20:06   ` Eric Sandeen
2009-10-13 22:19     ` Christoph Hellwig
2009-10-13 22:22       ` Eric Sandeen
2009-10-13 22:23         ` Christoph Hellwig
2009-09-02 17:55 ` [PATCH 05/14] repair: reduce byte swapping in scan_freelist Christoph Hellwig
2009-10-12 20:43   ` Eric Sandeen
2009-09-02 17:55 ` [PATCH 06/14] repair: use a btree instead of a radix tree for the prefetch queue Christoph Hellwig
2009-10-21 17:12   ` [PATCH 06/14] repair: use a btree instead of a radix tree for theprefetch queue Alex Elder
2009-11-12 10:04     ` Christoph Hellwig
2009-11-12 23:46       ` Dave Chinner
2009-09-02 17:55 ` [PATCH 07/14] repair: use single prefetch queue Christoph Hellwig
2009-10-21 17:48   ` Alex Elder
2009-11-12 10:09     ` Christoph Hellwig
2009-09-02 17:55 ` [PATCH 08/14] repair: clean up prefetch tracing Christoph Hellwig
2009-10-21 17:53   ` Alex Elder
2009-09-02 17:55 ` [PATCH 09/14] repair: track logical to physical block mapping more effeciently Christoph Hellwig
2009-10-21 19:06   ` [PATCH 09/14] repair: track logical to physical block mapping moreeffeciently Alex Elder
2009-11-12 10:18     ` Christoph Hellwig
2009-09-02 17:55 ` [PATCH 10/14] repair: cleanup helpers for tracking block usage Christoph Hellwig
2009-10-21 19:33   ` Alex Elder
2009-11-12 10:21     ` Christoph Hellwig
2009-09-02 17:55 ` [PATCH 11/14] repair: cleanup alloc/free/reset of the block usage tracking Christoph Hellwig
2009-10-21 20:22   ` [PATCH 11/14] repair: cleanup alloc/free/reset of the block usagetracking Alex Elder
2009-09-02 17:55 ` [PATCH 12/14] repair: switch block usage bitmap to a btree Christoph Hellwig
2009-10-22 16:22   ` Alex Elder
2009-11-12 10:25     ` Christoph Hellwig
2009-09-02 17:55 ` [PATCH 13/14] repair: optimize duplicate extent tracking Christoph Hellwig
2009-10-22 16:41   ` Alex Elder
2009-09-02 17:55 ` [PATCH 14/14] repair: add missing locking in scanfunc_bmap Christoph Hellwig
2009-10-22 16:42   ` Alex Elder
2009-09-03 20:49 ` Geoffrey Wehrman [this message]
2009-09-04  2:57   ` [PATCH 00/14] repair memory usage reductions Dave Chinner
2009-09-04 13:37     ` Geoffrey Wehrman
2009-09-04 14:51       ` Christoph Hellwig
2009-09-04 17:24         ` Michael Monnerie
2009-11-12 15:58 ` Christoph Hellwig

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