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Sun, 29 Apr 2007

Great filesystem contest. Tuned mount options. Postmark results.


I've completed postmark tests for tuned mount options, they mostly include noatime option and additional journal=writeback,extents,nobh options for ext3/ext4 filesystems. That options (mostly journal=writeback I think) completely killed the whole tests - ext3/ext4 becomes a clear winer with extremely huge gap between the next competitor. Frankly, I think there was incorrect setup somewhere, otherwise my consperacy feeling suggests that Linux VFS layer is heavily optimized for ext2/3/4 filesystems only (read: specially unfair for all others). Or something is really broken in design. Or (and likely it is the true) my tests were broken somehow...

I've also started fsbench tests, they will be completed tomorrow.

I will clean results up, prepare nice graphs with as small as possible words so that anyone interested could draw conclusions him/herself.
My goal is just to find an existing maximum performance in different setups.

/devel/fs :: Link / Comments ()