lkml.org 
[lkml]   [2001]   [Oct]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: Context switch times
From
In article <3BC067BB.73AF1EB5@welho.com> Mika.Liljeberg@welho.com wrote:

>Yes. However, you still want to balance the queues even if all CPUs are
>100% utilized. It's a fairness issue. Otherwise you could have 1 task
>running on one CPU and 49 tasks on another.

You say that as if it were a bad thing... I believe that if you have
one long running task and many small tasks in the system CPU affinity
will make that happen now. Obviously not if all CPUs are 100% loaded,
and your 1 vs. 49 is unrealistic, but having a task stay with a CPU
while trivia run on other CPU(s) is generally a good thing under certain
load conditions, which I guess are no less likely than your example;-)

--
bill davidsen <davidsen@tmr.com>
"If I were a diplomat, in the best case I'd go hungry. In the worst
case, people would die."
-- Robert Lipe
-
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 13:04    [W:0.126 / U:0.504 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site