Re: The 10ms averager in fair.c + granularity

From: Uwaysi Bin Kareem
Date: Tue Oct 02 2012 - 13:25:54 EST


The 10 ms averager is not the only strange thing. Obviously there are some good things in this scheduler, since it performs quite well. But I am not criticising the good.

But the documentation makes a distinction between desktop and server with the "resolution" parameter.
I tried some values and "echo 4500000000 > sched_min_granularity_ns" which would be strongly tuned towards server, only reduced jitter in doom 3. Which means it is a good value for desktop.

So that doesn`t seem to cohere with what is stated aswell. Anyway.. One needs to get really deep into the code to understand why it is so. So you know, I don know. I am going to take a look at it, and there probably won`t be any patch anytime soon.

Peace Be With You.
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