Re: [PATCH 3/3] Subject: SCHED - Use a 2-d bitmap for searching lowest-pri CPU

* Gregory Haskins <[email protected]> wrote:

> The current code use a linear algorithm which causes scaling issues on 
> larger SMP machines.  This patch replaces that algorithm with a 
> 2-dimensional bitmap to reduce latencies in the wake-up path.

hm, what kind of scaling issues - do you have any numbers? What workload 
did you measure and on what hardware?

	Ingo
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References:
- [PATCH 0/3] RT balance v7a
  - From: Gregory Haskins <[email protected]>
- [PATCH 3/3] Subject: SCHED - Use a 2-d bitmap for searching lowest-pri CPU
  - From: Gregory Haskins <[email protected]>

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