[Zope] Win2k Processor Affinity

[Bobb]

Hi Jim, please educate me, I'm confused.

So what is the syntax for running the program?
Is this in the registry / Imagepath key in current control set/ services or
is it something else?

TIA

Bobb
----- Original Message -----
From: "Jim Washington" <jwashin at vt.edu>
To: <zope at zope.org>
Sent: Wednesday, February 04, 2004 8:22 AM
Subject: Re: [Zope] Win2k Processor Affinity


> Answering my own question after experimenting :)
>
> > My production machine is a dual-processor machine running Windows 2000
> > Server with zope running as a service.
> > I understand from previous posts that setting processor affinity,
> > i.e., making python/zope run on only one of the processors, may be a
> > good thing.  Since this is my production machine, I would rather not
> > experiment too much.
> >
> > What I have is the imagecfg.exe program from
> > http://www.robpol86.com/tutorials/imagecfg.php, and the instructions
> > are to run
> >
> > imagecfg -u file.exe
> > imagecfg -a 0x1 file.exe
> >
> > on the executable file I would wish to set affinity to processor 1 on.
> >
> > I see that in Task Manager, I cannot set processor affinity manually
> > on my python process.  I get "access denied."
> >
> > I am running what I presume is the stock win32 install of zope-2.6.2.
> > It began as 2.6.0, but has been upgraded.
> >
> > So, now for the question:
> >
> > Has anyone done this?
>
> Yes.
>
> > Is the above procedure the correct way to do this?
>
> Yes.  Even though I could not set processor affinity manually through
> task manager.
>
> > Which executable(s) should be imagecfg'd?  Is it the python.exe in
> > [zope]/bin?  Or the .exe that starts the service?  or a .dll or two?
> >
> It's the python.exe in [zope]/bin .  I made a renamed backup copy of it
> just in case of failure.
>
> Results:
>
> It works.  I stopped Zope in the service manager, did the above, and
> then started Zope again.  It took a total of about two minutes.  I have
> not done any special performance testing, but visually in the task
> manager, zope is indeed running on a single processor, and my "zen" is
> that it seems a bit peppier.  It's been running fine in this state for a
> few days now.
>
> This of course allows a proper future experiment with ZEO --> server on
> one processor, client on the other.
>
> --Jim Washington
>
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