Messages in this thread | | | Date | Mon, 18 Feb 2008 16:02:36 +0100 | From | Tomasz Chmielewski <> | Subject | Re: very poor ext3 write performance on big filesystems? |
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Theodore Tso schrieb:
(...)
>> What has helped a bit was to recreate the file system with -O^dir_index >> dir_index seems to cause more seeks. > > Part of it may have simply been recreating the filesystem, not > necessarily removing the dir_index feature.
You mean, copy data somewhere else, mkfs a new filesystem, and copy data back?
Unfortunately, doing it on a file level is not possible with a reasonable amount of time.
I tried to copy that filesystem once (when it was much smaller) with "rsync -a -H", but after 3 days, rsync was still building an index and didn't copy any file.
Also, as files/hardlinks come and go, it would degrade again.
Are there better choices than ext3 for a filesystem with lots of hardlinks? ext4, once it's ready? xfs?
-- Tomasz Chmielewski http://wpkg.org
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