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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


    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.


    J.A. Magallon <> \ Software is like sex: \ 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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