At 10:55 AM 5/18/2003 +0200, Mike Galbraith wrote:
>At 05:16 PM 5/17/2003 -0700, David Schwartz wrote:
>
>> I suggest that a process be permitted to use up at least some
>> portion of
>>its timeslice exempt from any pre-emption based solely on dynamic
>>priorities.
>
>
>Is there any down-side to not preempting quite as often? It seems like
>there should be a bandwidth gain.
(my reply was supposed to be off-list, but..)
The answer appears to be yes, there are down-sides. Instead of the
expected throughput gain, I got a loss :-/ which makes sense from the
cache side I suppose. While it was instant gratification for the pipe
testcase, as a general solution it leaves something to be desired... at
least when implemented in it's simplest form Oh well.
(hmm.. maybe I should go stare at the cache decay stuff some more. later)
-Mike
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This archive was generated by hypermail 2b29 : Fri May 23 2003 - 22:00:32 EST