On Mon, 2003-09-29 at 13:19, Greg Norris wrote: > On Mon, Sep 29, 2003 at 12:09:18PM +0100, Andrew Ingram wrote: > > Can anyone tell me if there is anything special I should enable in my > > kernel (or any other Debian configuration) to make the most out of an > > Intel P4 processor with HyperThreading? Just realised my kernel has SMP > > disabled which might have been a mistake, but I can't find a definitive > > answer by googling. > > You need to enable SMP, and also ACPI CPU Enumeration... either > CONFIG_ACPI_HT_ONLY or CONFIG_ACPI_PROCESSOR. In the former case, you > may also need to use the boot parameter "acpismp=force". If memory > serves, it's no longer required as of 2.4.22.
Thanks for the responses guys. I'm running 2.4.22. So if I understand you right, I need to enable SMP, and also CONFIG_ACPI_HT_ONLY or CONFIG_ACPI_PROCESSOR (I assume only one of these will actually be available). Sounds easy enough! Might explain why my BIOS logo doesn't sport the "HT" after a reboot of Linux, but does after a reboot of Win XP (which recognises 2 CPUs). Thanks, Andy -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]