[NTLUG:Discuss] Built a big box
Dan Carlson
dcarlson at dcarlson.net
Fri Jan 24 12:04:13 CST 2003
I'm always interested in disk and filesystem performance.
What do you get with hdparm -t on your raid partitions?
With software raid5 over six ide disks in my system with a 2.2 GHz P4 I get
50 to 70 MB/sec. It really does vary over that range from one run to
another, depending on disk activity from other processes. Interestingly,
it is at the lower end of that range when there are no other processes
hitting the disk; it moves to the upper end of that range where there are
other processes with disk activity! I don't know what it is that gets more
efficient with more processes doing i/o, but there has to be something that
accounts for it. Could be seeking, buffering, a combination, or something
else.
Yes, I realize hdparm -t is a simplistic low-level synthetic benchmark, so
it isn't a good way to measure realworld performance. As some wise man
once said: There are lies, there are damned lies, and then there are
benchmarks. I use it as my first basis of comparison because it is simple
to run (no effort involved to run it or interpret its results) and it runs
fast.
If you want to run bonnie tell me which command line parameters you want to
use.
Dan Carlson
----- Original Message -----
From: "Chris Cox" <cjcox at acm.org>
To: <discuss at ntlug.org>
Sent: Friday, January 24, 2003 11:37 AM
Subject: [NTLUG:Discuss] Built a big box
> As many of you know, I've been building a huge box
> for use at home (helps heat the house I suppose).
>
> It's a dual Athlon rig with tons of storage, HW RAID,
> dual NICs, etc.
>
> The bad news is that there isn't really a good set
> of standards for benchmarking Linux boxes... so nothing
> to compare it to. Also, I'm interested in anything
> you would like to see run on it so I can offer feedback.
> One of the problems with spending money on HW/SW is the
> lack of practical information (some reviews, but nothing
> very tangible).
>
> Also, I've included a lot of pricing information.
>
> To save bandwidth you can view at:
> http://www.theendlessnow.com/monster.txt
>
> Feel free to send me some mail directly if you have
> something you would like to have me try out.
> mailto:cjcox at acm.org
>
>
> Some ideas:
> 1. SW vs. HW RAID
> 2. VMWare Win XP benchmark (how fast can a virtual machine go?)
> 3. Wine-X DirectX 3D benchmark (Mad Onion's or something)
>
>
>
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