Messages in this thread | | | Date | Thu, 20 Dec 2001 00:49:07 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH] Make highly niced processes run only when idle |
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Hi!
> > Even better would be to keep the process at low priority while in userland > > and reverts to normal "nice" priority while in kernelspace. > > But the point of a SCHED_IDLE would be to only run them while idle, so > they can still never even get the CPU. > > Ahh ... wait, do you mean periodically run them, but only give them the > boost while they are in kernel space? Very good idea. Can you see an > easy way to do this?
This was done before... As I wrote... Make it flag similar to "this is being ptraced" to get out of fast path, and rest is easy. Unset "low_priority" on entering of kernel, and set it back on exit from kernel.
Pavel -- "I do not steal MS software. It is not worth it." -- Pavel Kankovsky - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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