Hans Reiser wrote:
Philippe Gramoulle' wrote:
Hello,
Below are results from bonnie++ done on reiser4 and reiserfs.
Each result is an average of 5 runs.
For Reiser4 i used default mkfs options and -o formatting=extents
For Reisefs i used default mount options and -o notails
Assuming that default behavior of bonnie++ is to use twice the RAM of
the server,
no reboot was done between consecutive runs
Bonnie++ was run like this : bonnie++ -x 5 -d bonnie
Hardware: Dell PowerEdge 2550 1GHz SMP, 1Go RAM, SCSI 15K RPM U160
Seagate Cheetah X15 Disk
Software: Debian Sid + 2004.07.02 Reiser4 auto snapshot ( 2.6.7-mm4 )
.config file available here if interested:
http://philou.org/linux/reiser4/config-2.6.7-mm4
Biggest regression seems to be in deletes.
I would like to know exactly what is being done in sequential block
output phase of this benchmark. vs, please comment on that and why
reiser4 is slow at it.
sequential block output of bonnie++ writes to a file by 8192-byte blocks with
write(2).
Reiser4 does it similar to reiserfs which is known as fast filesystem. In my tests I
get the following.
As you can see Per Char output is worse in reiser4 than in reiserfs.
Version 1.03 ------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
reiser4 (1) 1G 18408 81 29188 15 13575 14 18317 78 30200 9 257.1 1
(2) 1G 17386 76 27335 15 13434 12 18617 79 30139 9 239.9 1
(3) 1G 18633 82 25161 13 14119 12 18292 78 30178 9 236.6 1
(4) 1G 17318 76 27457 15 12753 12 19083 81 29813 9 237.3 1
(5) 1G 19211 84 25424 13 13865 12 17785 76 29839 8 245.9 1
-------------------------------------------------------------------------------
reiserfs (1) 1G 21027 93 25964 23 10808 5 14502 62 23672 6 245.6 0
(2) 1G 22128 97 25173 21 10779 5 14354 62 23708 6 251.9 0
(3) 1G 21154 93 25794 22 10638 5 14513 62 23676 6 248.9 0
I will gladly redo my benchmarks if you feel i did or missed something
obviously important,
or you'd like me to test other FSes as well
Comments are welcome.
Thanks,
Philippe
--
Lycos Europe Noc
Average of 5 runs with reiser4 ( no special mkfs options )
Version 1.03 ------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
localbox 2G 15357 93 29126 24 17855 24 15994 93
40185 26 322 1
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 19839 99 +++++ +++ 7394 99.8 7632 100 +++++
+++ 7326 99.8
Average of 5 runs with reiser4 ( mkfs option -o formatting=extents)
Version 1.03 ------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
localbox 2G 15221 92 30467 25 17341 23 16059 94 40183
26 319 1
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 19728 99 +++++ +++ 7361 99.8 7576 99 +++++
+++ 7265 99.8
Average of 5 runs with reiserfs ( no special mount options )
Version 1.03 ------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
localbox 2G 16207 97 30432 30 16978 16 15100 91 38487
22 349 1
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 12433 99 +++++ +++ 10349 96 11836 99 +++++
+++ 9248 99.8
Average of 5 runs with reiserfs ( mount option -o
notails)
Version 1.03 ------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
localbox 2G 16029 96 33199 33 16201 15 15226 91 38606
22 348 1
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 12423 99 +++++ +++ 10719 99 11767 99 +++++
+++ 9241 99.4
