Messages in this thread |  | | From | Marc Dietrich <> | Subject | Re: Hyperthreading | Date | Thu, 22 Aug 2002 11:15:26 +0200 |
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On Wed, 21 Aug 2002, Hugh Dickens wrote: > 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.
Hi,
I used KNOPPIX on a 2 way Dell WS 530 (Xeon 2.0 GHz). This distribution has CONFIG_M386 set (as most others also?) and HT was not enabled. I compiled the kernel myself (same config as KNOPPIX but with CONFIG_MPENTIUM4) and HT gets enabled. So is _does_ matter for which processor the kernel is optimized.
Greetings
Marc
-- Marc Dietrich
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