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SubjectRe: Hyperthreading Options in 2.4.19

On 2002.08.07 "Reed, Timothy A" wrote:
>Hello All,
> I am going rounds with a sub-contractor of ours about what options
>should and should not be compiled into the kernel in order for
>Hyperthreading to work. Can anyone make any suggestions and comments to the
>options (below) that I am planning on enforcing:
> MSR
> MTRR
> CPUID

I thikn none is needed for ht. Of course, mtrr raises performance.
The other are not needed, afaik.

>
> Lilo.conf : acpismp=force??
>

True for old kernels, not needed anymore.

> Are the following worth any thing of value to Hyperthreading:
> Microcode
> ACPI

No.

In summary, with 2.4.19 you do not have to do nothing to have hyperthreading.
Other useful options are 'noht' to disable ht, and 'idle=poll', that I think
improves latency.

by

--
J.A. Magallon <jamagallon@able.es> \ Software is like sex:
werewolf.able.es \ It's better when it's free
Mandrake Linux release 9.0 (Cooker) for i586
Linux 2.4.20-pre1-jam1 (gcc 3.2 (Mandrake Linux 9.0 3.2-0.2mdk))
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