Ok,
I'm testing disk throughput for a backup server.
The OS is fairly irrelevant, so, I have the luxury of being able to test throughput
and decide on that basis.
Running bonnie++ 1.02 (the exact same version) on a 600Mhz PIII, against:
3 SCSI drives identified as:
Vendor: QUANTUM Model: ATLAS IV 9 WLS Rev: 0909
Type: Direct-Access ANSI SCSI revision: 03
Which are 8GB each (the machine has 6 of these), but I'm planning on RAID-1'ing data
that hasn't been written to tape, this is just for the short-term archive that gets
maintained (keeping backups on disk and tape).
Comparing FreeBSD-4.6 straight off the CD w/Vinum against LVM version
1.0.1-rc4(ish)(03/10/2001). I get the following figures.
The command line used was the exact same in both cases, the FreeBSD box doesn't have
"soft-updates" turned on for the filesystem (which on hindsight I should have used),
but bonnie++ is reporting confusing data.
Of the following two sets of data, which is faster?
Kevin
Operating System A:
Version 1.02 ------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
tonto.realise. 512M 26157 94 36552 39 15361 19 19900 94 37817 21 899.6 4
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 97 1 +++++ +++ 119 0 95 1 +++++ +++ 263 1
or
Operating System B:
Version 1.02 ------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
tonto.realise. 512M 8087 98 55353 60 13985 13 7667 94 101287 31 388.2 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 475 99 +++++ +++ +++++ +++ 537 99 +++++ +++ 2151 98
--------------------------------------------------------------------
http://www.lug.org.uk http://www.linuxportal.co.uk
http://www.linuxjob.co.uk http://www.linuxshop.co.uk
--------------------------------------------------------------------
