Re: [PATCH 00/14] repair memory usage reductions

Geoffrey Wehrman
2009-09-03T20:56:21Z

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