Re: Context switch times

From: bill davidsen (
Date: Mon Oct 08 2001 - 10:19:49 EST

In article <> 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 <>
 "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
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Mon Oct 15 2001 - 21:00:18 EST