lkml.org 
[lkml]   [2004]   [Jan]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] 2.6.0 batch scheduling, HT aware
On Fri, 2 Jan 2004, Bill Davidsen wrote:

> Yes and even worse, if you stop running setiathome the scientific task
> *still* only gets half the available CPU!

Look that this is not true. If one core is not running any task, the idle
task (if not polling) does "hlt" and the "what they call Fetch And
Deliver" engine will be dedicated to the other core. Also, because the
halted core not not issue any op to the execution engine, full resources
will be available for the running task. There are many docs available
inside the Intel developer web site that explain this.




- Davide


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:59    [from the cache]
©2003-2011 Jasper Spaans