Part of the difference is the comparison of the HP to the Intel Box.
If you take the z900 uniprocessor IFL to be 256 MIPS my first guess for the
HP 440 MHz 2way would have been 290 MIPS, but for the PIII 700 MHz I would
have come up with 83.5 MIPS. I do these comparisons by using extrapolation
data we purchase from Ideas International or using Internal IBM
extrapolations (they yield similar results but cover different machines),
and then apply a middle of the road conversion factor and a 70% utlization
factor. Any way the 290 MIPS would chew up an "IFL and then some". I
can't share the conversion factors with you because of agreements IBM has
with benchmark councils and with Ideas. In any case I think your
estimator is over valuing the PIII 700 MHz engine.
Joe Temple
Executive Architect
Sr. Certified IT Specialist
[EMAIL PROTECTED]
845-435-6301 295/6301 cell 914-706-5211
Home office 845-338-1448 Home 845-338-8794
"Little, Chris"
<[EMAIL PROTECTED]
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Re: Business Week Article
06/30/2005 01:23
PM
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Linux on 390 Port
I would guess that the SQL is not very optimized. Also, the app pushes a
lot of math that could be done client side to the database.
700 may be a somewhat low, but the HPUX server had two 440mhz PA-RISC 8?00
cpu's. When we moved it, it ate all of one IFL, plus a bit. It's bloated
since then and has been chewing on a good portion of both recently.
-----Original Message-----
From: Rich Smrcina [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 30, 2005 12:15 PM
To: [email protected]
Subject: Re: Business Week Article
700Mhz? That seems pretty low.
Little, Chris wrote:
Were those Solaris/AIX servers underutilized? By a lot?
Certainly workloads don't compare across platforms. I agree with
that, but for database workloads I was told (informally) to assume a
single z/900 IFL at a Pentium III 700mhz. Within reason, it seems
correct. We are probably getting better than that, but certainly nowhere
near what you are seeing.
Low CPU/high IO (webserving, maybe?) might translate better to linux
on zseries, I don't know.
-----Original Message-----
From: Uriel Carrasquilla [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 30, 2005 12:12 PM
To: [email protected]
Subject: Re: Business Week Article
Crhis:
I suspect not all workloads are the same. What we are finding out is
that loads are taking place much faster. That was a large pecentage
of our usage before. We don't have any users signed on and we only
run the zLinux image to service requests. It works for us and no one is
complaining.
Regards,
[EMAIL PROTECTED]
NCCI
Boca Raton, Florida
561.893.2415
greetings / avec mes meilleures salutations / Cordialmente mit
freundlichen Gr|_en / Med vdnlig hdlsning
"Little, Chris"
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<[EMAIL PROTECTED]
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06/30/2005 11:48
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Linux on 390 Port
Are you getting that much performance out of an IFL? Four times the
performance of a single RISC unix server?
I say that because the Oracle database we moved from an HP server with
2 PA-RISC 8600 (440mhz) cpus consumed a little more than one
IFL(100%-120% on a two IFL LPAR).
This was about in line with what IBM recommended.
-----Original Message-----
From: Uriel Carrasquilla [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 30, 2005 10:15 AM
To: [email protected]
Subject: Re: Business Week Article
John:
The formula we use is 4xCPU (sun 1.2 GHz or aix 1.0 GHz) is the same
as one IFL under z890 running zLinux under LPAR.
If zVM, we take away 10% power for the zVM overhead.
This is a rough estimate and gets refined upon the real circumstances.
Products licensing based on number of CPU's get penalized but we spend
more for the H/W (IBM is happy).
There are other benefits that are more important, such as saving in
head counts that I rather not get into but you can figure it out.
Regards,
[EMAIL PROTECTED]
NCCI
Boca Raton, Florida
561.893.2415
greetings / avec mes meilleures salutations / Cordialmente mit
freundlichen Gr|_en / Med vdnlig hdlsning
"McKown, John"
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<[EMAIL PROTECTED]
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06/30/2005 09:35
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Please respond to
Linux on 390 Port
-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Pieter Harder
Sent: Thursday, June 30, 2005 8:18 AM
To: [email protected]
Subject: Re: Business Week Article
Run Oracle on the z/890 as a "super server", (We just eliminated z/VM
and Linux on the zSeries because nobody knew what to do with them
John,
Just curious, on what are they planning to run Oracle then?
zOS? You guys mus have gobs of money....
Best regards,
Pieter Harder
We don't have "gobs of money". That scenario is what is being touted
by certain managers. Personally, I don't buy it, but what do I know?
They say that Oracle is licensed by the number of processors in the
box. And that a license for z/OS on two processors (regardless of
which processor it is - z800, z890, z990, all the same cost) costs the
same as a license for Windows running on two processors. This seems silly
to me, but I cannot refute it.
Also, at one time, we did test Oracle on Linux under z/VM (back when
we had those products). The Oracle DBAs (who ran the test themselves)
came to the conclusion that a z800 single IFL and 1 Gb of memory did
not perform as well as a 10Gb Sun system with 10 processors. Well, duh!
--
John McKown
Senior Systems Programmer
UICI Insurance Center
Information Technology
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