I have a ext3 filesystem with almost 200 million files (1.2 TB fs, ~65%
full); most of the files are hardlinked multiple times, some of them are
hardlinked thousands of times.
I described my problem yesterday on linux-fsdev list:
http://marc.info/?t=120333985100003
In general, because new files and hardlinks are being added all the time
and the old ones are being removed, this leads to a very, very poor
performance.
When I want to remove a lot of directories/files (which will be
hardlinks, mostly), I see disk write speed is down to
50 kB/s - 200 kB/s (fifty - two hundred kilobytes/s) - this is the
"bandwidth" used during the deletion.
Also, the filesystem is very fragmented ("dd if=/dev/zero of=some_file
bs=64k" writes only about 1 MB/s).
Will xfs handle a large number of files, including lots of hardlinks,
any better than ext3?
--
Tomasz Chmielewski
http://wpkg.org
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