On 06-01-05 14:07 -0800, death rince wrote: > Hi, > > I was browsing through benchmarks of Reiserfs and > other filesystem when I came across this, > > http://linuxgazette.net/102/piszcz.html > > Can anyone please give an insight, behind the > rationale of such tests and what exactly it signifies > in terms of working of the kernel with respect to > different filesystems. I am not too knowledgeable with > working of OS and kernel to be able to understand it > > I would appreciate some help. > > with regards > shiva >
I did run a little benchmark earlier today without seeing this thread. I had been suffering from Reiser3 for quite some time and switched to Reiser4 yesterday. Reiser4 was really nice in that it made my disk really silent. It is possible that it was a bit slower though. That's why I ran this benchmark using Bonnie++, the results might only be relevant for my computer, but I think I'll post them anyway :) The benchmark shows that Reiser3 is horrible, as I already knew, that Reiser4 creates and deletes files faster than God Himself, but generally sucks. ext2 and ext3 are fast for me however. This doesn't mean that an average computer will not perform better with Reiser4 as my computer might not like the overhead.
Version 1.93c ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
ext2 300M 268 96 6893 10 3420 7 348 97 7353 10 111.0 7
Latency 31466us 2476ms 779ms 159ms 92060us 1523ms
ext3 300M 278 96 6884 10 3458 8 391 98 7401 10 111.6 7
Latency 38046us 2571ms 666ms 109ms 114ms 1493ms
reiser3 300M 62 99 6813 18 3489 9 369 98 7099 11 110.7 9
Latency 161ms 3095ms 1349ms 110ms 79605us 1444ms
reiser4 300M 17 99 6644 17 3587 20 48 99 7342 26 94.0 14
Latency 911ms 8542ms 2322ms 292ms 182ms 9328ms
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
ext2 16 391 99 +++++ +++ 22888 66 443 98 +++++ +++ 1649 97
Latency 45700us 215us 427us 39520us 185us 4828us
ext3 16 426 98 +++++ +++ 20101 58 425 99 +++++ +++ 1582 97
Latency 42546us 390us 629us 38285us 199us 5677us
reiser3 16 2979 83 +++++ +++ 2936 92 2879 82 +++++ +++ 2811 96
Latency 7640us 11519us 234ms 28373us 367us 66454us
reiser4 16 4536 87 +++++ +++ 1901 99 2230 95 +++++ +++ 1998 99
Latency 2305us 26858us 27388us 2706us 365us 2897us
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