Re: HyperThreading CPUs under Debian
On Mon, 29 Sep 2003, Greg Norris wrote:
> On Mon, Sep 29, 2003 at 12:09:18PM +0100, Andrew Ingram wrote:
> > Can anyone tell me if there is anything special I should enable in my
> > kernel (or any other Debian configuration) to make the most out of an
> > Intel P4 processor with HyperThreading? Just realised my kernel has SMP
> > disabled which might have been a mistake, but I can't find a definitive
> > answer by googling.
>
> You need to enable SMP, and also ACPI CPU Enumeration... either
> CONFIG_ACPI_HT_ONLY or CONFIG_ACPI_PROCESSOR. In the former case, you
> may also need to use the boot parameter "acpismp=force". If memory
> serves, it's no longer required as of 2.4.22.
And, even if it sound stupid: enable hyperthreading in the bios.
Gaspard
Reply to: