Re: How do I raise the priority of one thread in a multi-threadedprocess?

From: Alan Stern
Date: Thu Aug 21 2008 - 17:04:38 EST


On Thu, 21 Aug 2008, Michal Hocko wrote:

> On Thursday 21 August 2008 12:58:46 pm Alan Stern wrote:
> > Can anyone tell me how to raise the priority of one thread in a
> > multi-threaded process (using the pthreads library)? Neither nice(2)
> > nor setpriority(2) is appropriate since they affect the priority of an
> > entire process rather than a single thread.
>
> Isn't pthread_setschedprio, what you are looking for?

Actually I was looking for pthread_setschedparam(). But it wasn't
clear at first that I needed to change the policy to SCHED_FIFO and
that special capabilities were needed. With those changes it seems to
work correctly.

Thanks for pointing me in the right direction!

Alan Stern

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