cvs commit: src/sys/kern sched_ule.c

[Jeff Roberson]

On Tue, 14 Dec 2004, John Baldwin wrote:

> On Tuesday 14 December 2004 05:34 am, Jeff Roberson wrote:
> > jeff        2004-12-14 10:34:27 UTC
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/kern             sched_ule.c
> >   Log:
> >    - In kseq_choose(), don't recalculate slice values for processes with a
> >      nice of 0.  Doing so can cause an infinite loop because they should be
> >      running, but a nice -20 process could prevent them from doing so.
> >    - Add a new flag KEF_PRIOELEV to flag a thread that has had its priority
> >      elevated due to priority propagation.  If a thread has had its
> > priority elevated, we assume that it must go on the current queue and it
> > must get a slice.
> >    - In sched_userret() if our priority was elevated and we shouldn't have
> >      a timeslice, yield here until we should.
> >
> >   Found/Tested by:        glebius
>
> _Please_ look at my priority inversions patch that I sent you a month ago!  I
> already have a flag for noting that a thread has bumped its priority and
> would appreciate it if you would review this before making more conflicts.

Resend please?  I'm not sure I've seen it.

>
> --
> John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
> "Power Users Use the Power to Serve"  =  http://www.FreeBSD.org
>