I compared reiserfs with notails and with tails to
ext3 in journaled mode about a month ago.
Strangely enough the machine that was being
built is eventually slated for a mail machine. I used
postmark to simulate the mail environment.
Benchmarks are available here:
http://labs.zianet.com
Let me know if I am missing any info on there.
Steven
Andreas Dilger wrote:
>On Jul 12, 2002 10:21 -0600, Dax Kelson wrote:
>
>
>>ext3 data=ordered
>>ext3 data=writeback
>>reiserfs
>>reiserfs notail
>>
>>http://www.gurulabs.com/ext3-reiserfs.html
>>
>>Any suggestions or comments appreciated.
>>
>>
>
>Did you try data=journal mode on ext3? For real-life workloads sync-IO
>workloads like mail (e.g. not benchmarks where the system is 100% busy)
>you can have considerable performance benefits from doing the sync IO
>directly to the journal instead of partly to the journal and partly to
>the rest of the filesystem.
>
>The reason why "real life" is important here is because the data=journal
>mode writes all the files to disk twice - once to the journal and again
>to the filesystem, so you must have some "slack" in your disk bandwidth
>in order to benefit from this increased throughput on the part of the
>mail transport.
>
>Cheers, Andreas
>--
>Andreas Dilger
>http://www-mddsp.enel.ucalgary.ca/People/adilger/
>http://sourceforge.net/projects/ext2resize/
>
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This archive was generated by hypermail 2b29 : Mon Jul 15 2002 - 22:00:23 EST