Re: [PATCH] V-3.0 Single Priority Array O(1) CPU Scheduler Evaluation

From: Peter Williams
Date: Mon Aug 02 2004 - 19:43:35 EST


William Lee Irwin III wrote:
On Mon, Aug 02, 2004 at 04:31:46PM +1000, Peter Williams wrote:

3. Priority based O(1) scheduler with active/expired arrays replaced by a single array and an O(1) promotion mechanism plus scheduling statistics with new interactive bonus mechanism and throughput bonus mechanism:


Hmm. Given do_promotions() I'd expect fenceposts, not iteration over
the priority levels of the runqueue.

I don't understand what you mean. Do you mean something like the more complex promotion mechanism in the (earlier) EBS scheduler where tasks only get promoted if they've been on a queue without being serviced within a given time?

Peter
--
Peter Williams pwil3058@xxxxxxxxxxxxxx

"Learning, n. The kind of ignorance distinguishing the studious."
-- Ambrose Bierce

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