Messages in this thread |  | | Date | Wed, 21 Aug 2002 18:33:09 +0100 (BST) | From | Hugh Dickins <> | Subject | Re: Hyperthreading |
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On Wed, 21 Aug 2002, James Bourne wrote: > On Wed, 21 Aug 2002, Reed, Timothy A wrote: > > > > Can anyone lead me to a good source of information on what options should be > > in the kernel for hyperthreading?? I am still fighting with a > > sub-contractor over kernel options. > > As long as you have a P4 and use the P4 support you will get > hyperthreading with 2.4.19 (CONFIG_MPENTIUM4=y). 2.4.18 you have to also > turn it on with a lilo option of acpismp=force on the kernel command line.
You do need CONFIG_SMP and a processor capable of HyperThreading, i.e. Pentium 4 XEON; but CONFIG_MPENTIUM4 is not necessary for HT, just appropriate to that processor in other ways.
Hugh
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