Yes, that is the scenario we are planning to implement. When we added the
2nd IFL, I noticed that Linux automatically detected the 2nd CP at boot, so
I expect it to figure out going back to 1 just fine.
If you have any benchmarks you'd like to have me gather, let me know. I
figure that such information will be useful for us in any case, and would
also be helpful to the community at large. I expect to have this
information gathered within the next week. Probably early next week
Adam Thornton
<[EMAIL PROTECTED]
mine.net> To
Sent by: Linux on [EMAIL PROTECTED]
390 Port cc
<[EMAIL PROTECTED]
IST.EDU> Subject
Re: Performance with Multiple CPUs
06/24/2004 09:50
AM
Please respond to
Linux on 390 Port
<[EMAIL PROTECTED]
IST.EDU>
On Thu, 2004-06-24 at 09:44, James Melin wrote:
> We are going to actually be testing exactly that shortly. We're going to
> load test an WAS environment/application on on IFL vs 2 IFL's to see how
it
> performs.
> I will share those findings when I have the testing completed and the
data
> compiled.
Are you going to be running on VM?
The data I'm actually interested in--is whether there's a measurable
performance difference (assuming more than one real engine) between a
uniprocessor and a multiprocessor Linux guest, assuming everything else
remains the same. That is, if you have
CPU 0
* CPU 1
in the directory entry for the first run, and
CPU 0
CPU 1
in the directory entry for the second run, then, if nothing else
changes, does Linux perform better or worse with two virtual engines
consuming the same amount of real resources?
Adam
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