Re: gij/eclipse sets SCHED_RR scheduling policy, hogs machine.

[Andrew Haley <aph at redhat dot com>]

David Daney writes:
 > 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.

I don't understand.  Are you saying that there is a way to change the
thread priority?  If so, do you know what it is?

Andrew.