[suse-sles-e] More benchmarks with SLES10 on HPProLiant DL360 G4p SCSI (was: catastrophic disk-performance on SLES10 with SATA drives)

From: Markus Roeffen (markus.roeffen_at_iws.uni-stuttgart.de)
Date: Wed Apr 11 2007 - 16:25:04 CEST


Message-ID: <461CEFC0.1080806@iws.uni-stuttgart.de>
Date: Wed, 11 Apr 2007 16:25:04 +0200
From: Markus Roeffen <markus.roeffen@iws.uni-stuttgart.de>
Subject: [suse-sles-e] More benchmarks with SLES10 on HPProLiant DL360 G4p SCSI (was: catastrophic disk-performance on SLES10 with SATA drives)

Hello Andreas and Alexei,

I've tested the new filesystem options on the with two users and a
mounted nfs.

Each user has run this command:

time dd if=/dev/zero of=./bla.dat bs=160k count=10000

This was the output:

10000+0 records in
10000+0 records out
1638400000 bytes (1,6 GB) copied, 314,761 seconds, 5,2 MB/s

real 5m15.824s
user 0m0.013s
sys 0m7.244s

The load average on the server with two (!) users and only two (!)
running processes was quite ... (annoying? frustrating?) ... interesting:

> top - 16:12:51 up 9 days, 5:02, 4 users, load average: 17.57,
> 12.26, 6.76
> Tasks: 134 total, 2 running, 132 sleeping, 0 stopped, 0 zombie
> Cpu(s): 0.7%us, 6.6%sy, 0.0%ni, 67.5%id, 19.9%wa, 0.0%hi,
> 5.3%si, 0.0%st
> Mem: 1028988k total, 1019388k used, 9600k free, 4196k buffers
> Swap: 4192924k total, 140k used, 4192784k free, 528900k cached

I'll continue my research.

Best regards
Markus

-- 
-------------------------------
Markus Roeffen
Institut für Wasserbau IWS
Universität Stuttgart
Pfaffenwaldring 61
70569 Stuttgart
Tel: +49(0)711/685-67010
Fax: +49(0)711/685-67020
Mail: markus.roeffen@iws.uni-stuttgart.de
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