From: "Vladimir V. Saveliev" <vs@namesys.com>
To: Hans Reiser <reiser@namesys.com>
Cc: ReiserFS Mailing List <reiserfs-list@namesys.com>
Subject: Re: Reiser4 / Reiserfs bonnie++ performance comparison
Date: Mon, 12 Jul 2004 18:58:53 +0400 [thread overview]
Message-ID: <40F2A72D.9070601@namesys.com> (raw)
In-Reply-To: <40EEE5D7.7040306@namesys.com>
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
>>
>>
>>
>>
>>
>
>
>
next prev parent reply other threads:[~2004-07-12 14:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-09 14:59 Reiser4 / Reiserfs bonnie++ performance comparison Philippe Gramoullé
2004-07-09 15:24 ` Marcel Hilzinger
2004-07-09 15:41 ` Chris Humphries
2004-07-09 20:06 ` Marcelo Pacheco
2004-07-10 5:08 ` Hans Reiser
2004-07-10 10:40 ` Mihai Rusu
2004-07-09 18:37 ` Hans Reiser
2004-07-12 14:58 ` Vladimir V. Saveliev [this message]
2004-07-09 20:54 ` Redeeman
2004-07-09 21:52 ` Dieter Nützel
2004-07-09 22:06 ` Redeeman
2004-07-10 5:17 ` Hans Reiser
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