Bruce Marshall wrote:
On Tuesday 02 March 2004 12:29 pm, Steven T. Hatton wrote:
I'm still not sure about this. I grepped the kernel source tree, and got one fairly dated reference to hyperthreading. Some on the list suggest I needed the SMP kernel for hyperthreading. The comments in the configuration documentation stated that running SMP on a non-SMP system would be slower than running the non-SMP kernel there. Does anybody have definitive information on this?
STH
I'm running a P4 2.8 here using hyperthreading on a 2.4.25 kernel (one of those vanilla thingies you don't seem to like) and it runs like a charm.
First your MB has to support hyperthreading, and second, you have to make sure it is enabled, and then you have to come up with an SMP kernel.
Thanks for the advice Bruce. I just rebooted and turned on HT in the BIOS and now Kinfo reports two processors. I could not work out what was happening before with my brand new P4 3.2. The speed increase is quite noticeable. Nick