Hi
There were some questions like yours in the past and I think, that it is
impossible, to change from SMP to non-SMP at runtime.
There are some patches/programs around, which are able to switch a
process to
exact one cpu, but I think it is not what you are searching for.
It seems, that the only possibilty is working with two kernels (one on a
disk, the other one on mbr; of course with rebooting the machine).
Greetings, Dietmar
David G Andersen wrote:
>
> I looked through the list archives, and couldn't find an answer to this.
>
> Is there a way at either runtime or boot-time (but -Not- compile time) to
> force a multiprocessor Linux system to only recognize one processor, or
> disable SMP entirely? We're trying to get some benchmark numbers, and
> I'd like to avoid pulling a processor out.
>
> (I know, the easy answer is, "keep another non-SMP kernel around", but I'd
> prefer to use the exact same configuration. Ideally, I'd like to not even
> need to reboot, but..).
>
> Thanks in advance.
>
> -Dave
>
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