Status of hyperthreading in FreeBSD

Wojciech Puchar wojtek at
Mon Dec 22 08:29:40 UTC 2008

> Atom's HTT is actually pretty good - I saw up to 25% more performance
> simply by using multithreading in 7zip's compression benchmark (on
> WinXP, though). Of course, OTOH it uses about that much more transistors
> on the CPU die so it's not exactly free performance.

really that much? i thought maybe 1-2% (just 2 sets of registers).

it would be better to put 2 much simpler cores in place of this one.

or 100 ARM7 cores ;) (it would fit)

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