What is the real number of CPUs ? -- was: Re: Problem with
new Intel DX board and i7 Processor on reboot attempt (locks)
Mike Tancsa
mike at sentex.net
Fri Feb 20 10:52:26 PST 2009
At 06:30 PM 2/19/2009, martinko wrote:
>Hi,
>
>I don't get the numbers of CPUs -- AFAIK Core i7 has 4 cores with 2
>logical CPUs per core (hyper-threading?) and that makes 8 logical
>CPUs. Above I see 8 cores per package (!) _but_ 8 x 2 = 16 while
>only 8 CPUs are detected and started. Could someone explain pls ?
The CPU is as you said, 4 actual cores plus their new HT tech. In
the tests I did, the HT did help with compile times under RELENG_7
http://lists.freebsd.org/pipermail/freebsd-performance/2008-December/003635.html
---Mike
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