I did a quick test of a kernel compile.
Supermicro 6040 (370DE6) motherboard
2 x 1GHz PIII CPU
1 GB RAM
Dual onboard Adaptec aic7899, Quantum Atlas 10K
Adaptec 3200 Raid controller, RAID 5, 8 x Seagate 75 MB Cheetah
I did a kernel compile on the boot disk, XFS non-RAID and on the
RAID volume with an XFS filsystem. Compile times were almost identical,
64min,46sec vs. 6min,48sec.
Kernel, 2.4.3-SGI_XFS_1.0.1smp
On Thu, Mar 07, 2002 at 03:20:31PM -0500, Murthy Kambhampaty wrote:
> > From: Steve Lord [mailto:lord@xxxxxxx]
> > Sent: Thursday, March 07, 2002 14:49
> ...
> > Subject: Re: Does XFS on hardware RAID5 have perfomance issues?
> ...
> > So I do not think it should matter. Let me guess, you do not like the
> > performance you are getting right now.
>
> We have a SuperMicro S2QR6 motherboard with four PIII Xeon 500 MHz/2Mb cache
> and 4gb RAM (call it comp1). I get kernel compile times that are thrice as
> long as on a dual PIII 550 Mhz Katmai processor with 256 MB of RAM (call it
> comp2); importing a file into MySQL seems to take almost 50% longer on comp1
> than on comp2. So, I'm chasing down all the bottlenecks and trying to
> eliminate them. I thought the 2.4 kernel scaled well to sixteen processors,
> and there is no indication that the highmem configuration slows the kernel
> down this much, but I might have to get on the kernel mailing list with
> this.
>
> Thanks for the response to my original question,
> Murthy
=============================================================================
Ray Muno http://www.aem.umn.edu/people/staff/muno
University of Minnesota e-mail: muno@xxxxxxxxxxx
Aerospace Engineering and Mechanics Phone: (612) 625-9531
110 Union St. S.E. FAX: (612) 626-1558
Minneapolis, Mn 55455
=============================================================================
|