Messages in this thread |  | | From | arjan@fenrus ... | Subject | Re: Numbers: ext2/ext3/reiser Performance (ext3 is slow) | Date | Sat, 10 Nov 2001 14:47:59 +0000 |
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In article <Pine.LNX.4.40.0111101516050.14500-100000@omega.hbh.net> you wrote:
> Hello !
> Anyone has an idea, why this ext3 "fails" at this specific test while on > normal fs-benchmarks it is much better ?
ext3 by default imposes stricter ordering than the other journalling filesystems in order to improve _data_ consistency (as opposed to just the guarantee of consistent metadata as most other filesystems do). if you mount the filesystem with
mount -t ext3 -o data=writeback /dev/foo /mnt/bar
will make it use the same level of guarantee as reiserfs does.
mount -t ext3 -o data=journal /dev/foo /mnt/bar
will do FULL data journalling and will also guarantee data integrety after a crash...
Greetings, Arjan van de Ven - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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