Ludo Brands wrote:
On 27/12/2012 23:06, Ewald wrote:
Oh, and the important part: The function has been tested on a Core 2 Duo
and an Intel i7, and works correctly. If someone would be so kind to
test it on some other CPU's that would be great! [I'm not 100% of the
hexadecimal of `AuthenticAMD` you see]
Inconsistent results here with hyperthreading:
Xeon W3530 (4 cores hyperthreading) reports #CPU cores: 8. /proc/cpuinfo
lists 8 processors and 4 cpu cores
Intel Atom 230 (1 core hyperthreading) reports #CPU cores: 1 while
/proc/cpuinfo reports 2 processors and 1 cpu core.
AMD Athlon X2 5600+ reports #CPU cores: 2. /proc/cpuinfo reports 2
processors and 2 cores.
Also be careful of the situation where an OS supports hot-pluggable CPU
cards and has been told to shut one down for maintenance. Solaris
definitely does this on SPARC, I don't know about its position on x86,
and I don't know about Linux's general position.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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