gij/eclipse sets SCHED_RR scheduling policy, hogs machine.

[David Daney]

Andrew Haley wrote:
> David Daney writes:
>  > Andrew Haley wrote:
>  > > For some bizarre reason we're setting SCHED_RR when we do
>  > > java::lang::Thread::setPriority ().  I cannot begin to imagine why
>  > > anyone ever thought this might be a good idea.
>  > > 
>  > 
>  > IIRC the current implementation of Thread.setPriority(int) does not work 
>  > on Linux with SCHED_OTHER.  Perhaps it was an attempt to make it work.
>  > 
>  > We have an ugly local hack that uses setpriority() but it does not work 
>  > with NPTL.
> 
> Well, at least one kernel engineer seems to think that's what should
> be done.  I accept that it might not work, but there's notthing better
> that will, so ...

I don't doubt that SCHED_RR is the wrong thing.  But it would be nice if 
we could somehow get Thread.setPriority() to actually change the thread 
priority as documented.

David Daney