Vista Tip: Enable multiple core support for boot process

dan^uk

dan^uk

dan^uk

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2 Jun 2003
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By default, Vista only has single core support during the boot process, however this can be changed to allow the boot process to use multiple cores:-

1. Start msconfig
2. Goto the Boot tab
3. Click on the Advanced Options button
4. Tick the Number of processors box
5. Choose the total number of cores that your machine has available
5. Click OK, then Apply and OK.

When you next reboot, Vista will use more than one processor core during the boot process. :)
 
I'm pretty sure it's been proved that that option does sod all and that you're better off leaving it at automatic.

edit:

It's a diagnostic option set to limit the number of cores Vista uses. Vista already knows how many cores you have without interfering with this option. All it should be used for is testing for defective cores.

http://www.neowin.net/forum/index.php?showtopic=645389
 
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A quick Google shows many forum posts saying that is Hoax and others saying it works.

It is not clear if the /numproc=number relates to Physical Processors or Cores. I cannot find conformation of this.
 
superplay said:
A quick Google shows many forum posts saying that is Hoax and others saying it works.

It is not clear if the /numproc=number relates to Physical Processors or Cores. I cannot find conformation of this.
Click to expand...

The only use for that option is to limit the number of cores at use. Anyone reporting otherwise is either fibbing or suffering a placebo effect.

edit:

That said it's not clear whether it's referring to processors or cores, but it's irrelevant really.
 
This is not true. As soon as the multiprocessor HAL gets loaded (one of the very first things that is initialised) then threads get scheduled to multiple processors.

I don't know where this rumour started but it is a pretty crap one.

As said that particular parameter is only for *limiting* the number of cores. It is useful for developers that have got more cores than they want... e.g. for debugging a kernel driver.
 
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