Messages in this thread | | | Date | Wed, 2 Oct 2002 14:48:59 +0400 | From | Paul P Komkoff Jr <> | Subject | Re: [STUPID TESTCASE] ext3 htree vs. reiserfs on 2.5.40-mm1 |
| |
Replying to Andreas Dilger: > Why do you think data=writeback is better than data=journal? If the > files have no data then it should not make a difference.
It is better than default data=ordered I think :)
Thanks for detailed explanation - it saved much time for me and accortind to yours directions I have recalculated my test. Now ext3 is better :)
e3 create 2m49.545s 0m4.162s 2m20.766s delete 2m8.155s 0m3.614s 1m34.945s
reiser create 3m13.577s 0m4.338s 2m54.026s delete 4m39.249s 0m3.968s 4m16.297s
e3 create 2m50.766s 0m4.024s 2m21.197s delete 2m8.755s 0m3.501s 1m35.737s
reiser create 3m13.015s 0m4.432s 2m53.412s delete 4m41.011s 0m3.893s 4m16.845s
this is two typical runs. Now I creating ext3 with mke2fs -j -O dir_index -J size=192 -T news /dev/sda4
as you can see, this improves performance by 1/4
Unfortunately, there still one issue in ext3. It called "inode limit". Initially I wanted to run this test on 1000000 files but ... I hit inode limit and don't want to increase it artificially yet.
Reiserfs worked fine because it don't have such kind of limit ...
-- Paul P 'Stingray' Komkoff 'Greatest' Jr /// (icq)23200764 /// (http)stingr.net When you're invisible, the only one really watching you is you (my keychain) - 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/
| |