Peter Williams wrote:
Con Kolivas wrote:
On Mon, 20 Jun 2005 15:33, Peter Williams wrote:
PlugSched-5.2.1 is available for 2.6.11 and 2.6.12 kernels. This
version applies Con Kolivas's latest modifications to his "nice" aware
SMP load balancing patches.
Any word from your own testing/testers on how well smp nice balancing
is working for them now?
No, they got side tracked onto something else but should start working
on it again soon. I'll give them a prod :-)
We've done some more testing with this with results that are still
disappointing. We think that one reason for this is that move_tasks()
doesn't take "nice" into account. I'm going to look at modifying it so
that it moves a certain amount of niceness rather than a specified
number of tasks.
A second (more difficult to solve) issue is that we think it would work
better if both queue lengths and "nice" loads were kept approximately
equal between the queues. It's hard to see how this can be managed
without considerable overhead.
Peter Williams [email protected]
"Learning, n. The kind of ignorance distinguishing the studious."
-- Ambrose Bierce
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