xeon hyperthreading & GIL

Aahz aahz at pythoncraft.com
Wed Feb 12 11:44:58 EST 2003


In article <1044884763.968037 at ananke.eclipse.net.uk>,
seb bacon  <seb.bacon at jamkit.com> wrote:
>
>Therefore, the fact that you can't schedule them on SMP does not explain 
>why SMP performs worse than single-CPU in many python applications.

The only reason I can think of for that would be loss of caching effect
due to switching processes between CPUs.  Modern OSes are supposed to
minimize that, but I don't have enough experience in this area to give
much help.
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

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