Messages in this thread | | | Date | Fri, 10 Jan 2003 00:20:17 +0000 | From | Dave Jones <> | Subject | Re: detecting hyperthreading in linux 2.4.19 |
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On Thu, Jan 09, 2003 at 08:02:33PM +0000, Jason Lunz wrote: > Is there a way for a userspace program running on linux 2.4.19 to tell > the difference between a single hyperthreaded xeon P4 with HT enabled > and a dual hyperthreaded xeon P4 with HT disabled? The /proc/cpuinfos > for the two cases are indistinguishable.
Check out x86info[1]. It should do the right thing in both cases. It counts siblings, and also checks the BIOS MP table.
Dave
[1] http://www.codemonkey.org.uk/x86info/ -- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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