Re: [RFC][PATCH] schedule changes

From: Ingo Molnar (mingo@chiara.csoma.elte.hu)
Date: Fri Jan 21 2000 - 07:36:12 EST


On 20 Jan 2000, Dimitris Michailidis wrote:

> * fixes the bug that causes TASK_INTERRUPTIBLE|TASK_EXCLUSIVE processes to be
> taken off the run queue even if they have pending signals;

> * occasionally, a process that goes to sleep becomes runnable before it is
> completely descheduled. For such processes the current scheduler runs

yep these two are real bugs. What is the speed impact of your generic
scheduler changes on 'lat_ctx -s 0 2', 'lat_ctx -s 0 100' & similar
scheduler numbers? We do not have to care too much about the case when
1000 processes are running at once. (if we get performance in that area
for free, then ok. If it hurts the simple case then no thanks.)

-- mingo

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