> As it is, the kernel locks often become a bottleneck on systems
> with lots of penguins. Look at this scenario:
>
> 1) A process currently sleeping in kernel mode is ready to go forward
> 2) At least one processor is busy running a SCHED_OTHER process
>
> Would it benefit throughput if it was guaranteed that the sleeping
> process gets to go forward at the expense of the already running
> process? It would mean that processes get out of kernel mode quicker.
>
> It would certainly be unfair, so there would have to be special
> protections in place to ensure that the process that benefits gets to
> pay later.
Please take a look at my SCHED_IDLE patch:
http://www.nl.linux.org/~riel/patches/
It does exactly what you describe, or at least I hope so.
Rik -- Open Source: you deserve to be in control of your data.
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