On 6/22/06, Frank Schwede, LSY <[EMAIL PROTECTED]> wrote:
My 2 cents:
Take 3-4 IFLs and put this Oracle on it. Enough for 98% of the coming
load I think...
Take 2-3 OpteronBoxes for the Java in front of it.
AND! Put some other project on the zBox.
Never make the mistake and size (especially) a z-machine for the peaks
you need. You also shouldn't take the Z for ONE project.
Think of the benefit of the easy consolidation and perfect system
management you will have with the Z.
And for costs you have to compare all efforts you need to get the "bit"
from the disk to the userscreens and this for a couple of projects...
Regards
Frank
-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Rob van der Heij
Sent: Donnerstag, 22. Juni 2006 08:44
To: [email protected]
Subject: Re: SuSE Linux Benchmark
On 6/22/06, John Summerfield <[EMAIL PROTECTED]> wrote:
> I'd rather see a benchmark involving Oracle on the Z and the Java app
on
> the {pSeries,iSeries,Sun} and if you can find a decent Opteron box,
that
> too.
That would make sense.
And if it has to be all on zSeries, we learned that it does help to
put the tiers in different virtual machines that can be tuned
separately. Too bad many people put so little effort into it when they
do benchmarks, and then value the outcome so much...
Rob
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Let me answer some of the questions.
The benchmark will run Java and Oracle in the same box. It we get the
"green light" we will split Oracle into into its own virtual machine
and the Java App into a separate virtual machine.
I went back to check on my AIX system and here is what I found.
1) the java application is using 15% of the cycles.
2) the remaining cycles are being consumed by Oracle.
3) we are not using Java for stored procedures.
4) the writing of the log and transactions is heavy on I/O. They do
large number of deltes (400K rows) and large amounts of additions.
I can't get more IFL's for the benchmark since I am using all 4 (2 for
zOS and two IFL's). If we get the green light, chances are I will get
the budget for a new z9.
My only objective is to complete the batch processing faster on Linux
than on AIX measured by my wrist watch. CPU speed is a significant
factor but I suspect is not the only factor that will determine who
finishes first.
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