On Wed, 28 Apr 1999, John Grant wrote:
> -------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
> 1000 2792 70.3 9118 27.1 4836 26.1 3490 84.6 11499 27.3
> 244.0 12.5
Here's stats from a VA Research VARserver 3000 which uses the Mylex
DAC960PG-8M:
-------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
1024 4799 23.8 5053 4.9 3611 9.6 12344 50.5 14878 22.8 186.6 2.0
1900 5194 25.8 5048 4.9 3506 9.4 12595 51.7 14682 22.7 134.5 1.5
This is in a RAID-5 config with 5 9gb UW drives in a dual PII-450 with
512mb RAM running kernel 2.2.2-smp.
Have others noticed that increasing the file size with bonnie seriously
decreases the random seeks/s measurement? I've seen the same thing
recently with software RAID-0 arrays. The read performance is a little
better here, but write performance still isn't great. I've seen numbers
from ICP Vortex that look better on writes, but haven't gotten to use one
yet.
----don't waste your cpu, crack rc5...www.distributed.net team enzo---
Jon Lewis *[EMAIL PROTECTED]*| Spammers will be winnuked or
System Administrator | nestea'd...whatever it takes
Atlantic Net | to get the job done.
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