Re: Dual Core CPU Affinity

Tech-Archive recommends: Speed Up your PC by fixing your registry

The undersigned is the same person who initiated this thread! I'm sorry
about that.

"Steve Behman" wrote:

Thanks for the replies.

Every process that I have examined in task manager has its affinity set only
CPU 0 and, since I have never (knowingly) altered the default behavior, this
might contradict your assertion.

I think I would be happy if the affinity of all processes were set to both
processors. This leaves me with two questions:
How can it be accomplished (i.e. restoring the default behavior)?
Is there a downside to having done this?

It would also be nice to know how the default behavior was altered so that,
in the future, I can avoid it happening again.


"Ian D" wrote:


<sierrabravobravo@xxxxxxxxx> wrote in message
news:4f42a868-d7fa-4447-904a-8bd9e0a65f51@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I am using an Intel core 2 duo processor.

When I use the task manager to view the affinity of the number
processes it appears that all have only CPU 0 Checked. Further, when
I have two CPU intensive processes executing simultaneously there
seems to be very little activity on CPU 1 and CPU 0 is fully
saturated.

I fear that there is some setting that enables the task scheduler use
both CPUs that is not set correctly. What, if anything, can I do to
get some sort load-balancing between the two processors?

The task scheduler's job is to run applications at predetermined
times. It has nothing to do with scheduling CPU affinity. Only
XP/Vista and multithreaded software will make simultaneous use of
both CPUs. However in Task Manager you can set the affinities
of your two processes so that one will run on CPU1 and the other
on CPU2. You will have to do this each time you start those
processes. By default, applications have the affinity set to both
CPUs. If the bar graph to the right of the individual CPU graphs
goes beyond 50%, then both CPUs are being used.



.

Relevant Pages

  • Re: Hyper Threading Issues
    ... Open Task Manager by pressing Control+Alt+Delete then right click on the ... process, then set affinity. ... Now check which CPU you want it to use;) ... >>>>I flash bios with latest version, Enabled Ht from Bios, ...
    (microsoft.public.windowsxp.hardware)
  • Re: Hard drive appears to be continualy running
    ... I have re chanked info from task manager and System Idle Process is showing ... between 90-98% but still the cpu usage listing under it shows CPU useage at ... Try running Disk CleanUp in all user profiles. ...
    (microsoft.public.windowsxp.perform_maintain)
  • Re: svchost.exe - extremely high CPU usage and endless...
    ... I'm also going to install Norton grudgingly instead of Avast because it seemed like a lot of the 'ash' things in the task manager, especially 'ashserver' and avast.setup kept gobbling up the CPU as well. ... "Travis King" wrote in message ...
    (microsoft.public.windowsxp.general)
  • Re: Computer running very slow
    ... The speed of your connection to the internet has nothing to do with the speed at which your computer operates. ... A computer usually runs slowly because its memory and CPU processing capacity are being used up by having too many resource-heavy applications running at the same time. ... Open Task Manager and go to the Processes tab. ...
    (microsoft.public.windowsxp.perform_maintain)
  • Re: IE6 CRash CrAsh CrASh again & again & again
    ... Is the Auto_Protect enabled on the Norton AV? ... If so, Check the Task Manager ... manager when your cpu is spiking, then download and install this free ... >> If you don't know the location of your Video driver, ...
    (microsoft.public.windows.inetexplorer.ie6.browser)