why no per-thread scheduling niceness?
John Baldwin
jhb at freebsd.org
Tue Feb 26 22:09:32 UTC 2013
On Friday, February 22, 2013 2:12:54 pm Ian Lepore wrote:
> I'm curious why the concept of scheduling niceness applies only to an
> entire process, and it's not possible to have nice threads within a
> process. Is there any fundamental reason why it couldn't be supported
> with some extra bookkeeping to track niceness per thread?
Only that the existing 'nice' command only works on processes and nice is
traditionally a process concept. Also see things like renice. Individual
threads can already alter their priority somewhat (e.g. to set an individual
thread to an idle or real-time priority).
--
John Baldwin
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