Subject: Re: 160 GB HD on PWS
To: None <port-alpha@netbsd.org>
From: Graham Allan <allan@physics.umn.edu>
List: port-alpha
Date: 06/06/2003 11:42:19
On Thu, Jun 05, 2003 at 09:52:39AM +0200, Jochen Kunz wrote:
> On 2003.06.05 06:22 Ray Phillips wrote:
> 
> > That's impressive considering the age of the machine and how recent 
> > an i386 motherboard needs to be to support a disk this big. 
> Can you boot from that disk? 
> Bechmarks? (bonnie?)
> What CPU load do you get on heavy IDE activity compared to SCSI? 

We did some tests for this with bonnie last year, though under Tru64
rather than NetBSD. I found the results - maybe they will be
interesting anyway.

There are 4 test results. Three are in the PWS; they are: IDE disk with
SCSI controller (via Acard SCSI-IDE bridge); IDE drive on IDE
controller; and SCSI disk. THe SCSI disk is small and old though so not
a very fair comparison! Finally there's a test of a similar IDE drive
on the DS10 IDE controller.

Graham

----

Filesystem performance tests with 75GB Maxtor 740-series IDE drive in
Personal Workstation 433au.

First result - using Acard AEC-7720UW SCSI-IDE bridge and Qlogic 1040B:

[56]root@dunnotar> Bonnie -d /mnt -s 500
File '/mnt/Bonnie.947', size: 524288000
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
          500 13056 97.0 30830 54.7 14282 20.1 15580 98.8 31018 21.8 134.5  3.5


Second result - using internal IDE interface:

[34]root@dunnotar> Bonnie -d /mnt -s 500
File '/mnt/Bonnie.885', size: 524288000
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
          500  4620 93.9  6322 97.2  1787 58.9  2128 95.3  2420 90.3  73.7  3.2


Third result ("control"), ST34572W system disk on Qlogic controller:

[36]root@dunnotar> Bonnie -d /export/scratch -s 500
File '/export/scratch/Bonnie.1157', size: 524288000
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
          500  5793 42.0  6089  9.5  2949  4.6  6818 44.1 10088  7.8 146.6  3.1


Another result: direct IDE in DS10 (note - using advfs rather than ufs)

[109]root@mnhepw> Bonnie -d /export/data/cleo3lib/ -s 500
File '/export/data/cleo3lib//Bonnie.433900', size: 524288000
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
          500 11280 35.5 18076 11.3  6292  5.0 15960 50.4 20502  8.5  64.0  0.7


-- 
-------------------------------------------------------------------------
Graham Allan - I.T. Manager - gta@umn.edu - (612) 624-5040
School of Physics and Astronomy - University of Minnesota
-------------------------------------------------------------------------