Messages in this thread | | | Date | Sun, 25 Jul 1999 20:54:13 +0200 (CEST) | From | Rik van Riel <> | Subject | Re: low priority soft RT? |
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On 25 Jul 1999, Benny Amorsen wrote:
> 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. +-------------------------------------------------------------------+ | Le Reseau netwerksystemen BV: http://www.reseau.nl/ | | Linux Memory Management site: http://www.linux.eu.org/Linux-MM/ | | Nederlandse Linux documentatie: http://www.nl.linux.org/ | +-------------------------------------------------------------------+
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