Re: /proc/cpuinfo and hyperthreading

Robert Love (rml@tech9.net)
15 Dec 2002 23:02:39 -0500


On Sun, 2002-12-15 at 22:58, Scott Robert Ladd wrote:

> Am I correct to infer that the "siblings" entry refers to the 2-way
> hyperthreading on my CPU?

Yep, the 'siblings' value is the number of virtual processors in the
physical package.

Do you only see one processor listing in /proc/cpuinfo, though? You
should see one for each (virtual) processor. That means two in a single
HT-enabled P4, each with the same physical id.

So it seems your chip works... is the kernel compiled for SMP?

Robert Love

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