Re: Status of SCHED_ULE?

On Sun, 28 Sep 2003, Arjan van Leeuwen wrote:

> On Sunday 28 September 2003 14:38, Matt wrote:
> > Morten Rodal wrote:
> > > On Sun, Sep 28, 2003 at 01:26:24PM +0100, Matt wrote:
> > >>Morten Rodal wrote:
> > >>>On Sat, Sep 27, 2003 at 11:31:25PM -0400, Jeff Roberson wrote:
> > >>>>On Sat, 27 Sep 2003, Morten Rodal wrote:
> > >>>>>It has improved quite a bit lately, and is now also working with KSE.
> > >>>>>However, the mouse will get sluggish whenever the computer is under
> > >>>>>bursts of load (i.e. a compile)
> > >>>>
> > >>>>I have not had this experience.  Can you give me details of your
> > >>>> machine and the kind of load that causes slugishness?  I'll correct it
> > >>>> as soon as I can identify it.
> > >>>
> > >>>The machine is an dual Pentium 2 300MHz, and I'm running gnome 2.4.
> > >>>I do also experience this with my computer at school, a single Pentium3
> > >>>733MHz.
> > >>>
> > >>>The load isn't very complicated, usually just gnome 2.4 and mozilla
> > >>>firebird running.  If I then do anything that requires lots of cpu,
> > >>>like a compile of a program, the interactivity drops fast.
> > >>>
> > >>>On the dual machine I have also experienced a *HUGE* increase in the
> > >>>time for "portupgrade -ar" to complete.  I am not familiar with how
> > >>>portupgrade works, but it seems to spawn a few make's and sort's, but
> > >>>I am not sure why it is currently using 3 hours instead of 10 minutes
> > >>>to complete! (This was tested when there was no packages to upgrade,
> > >>>which shouldn't take long)
> > >>>
> > >>>Both machines (this dual and the one at school) are running with a
> > >>>libmap.conf in order to use libkse, is this perhaps affecting the
> > >>>performance of ULE?
> > >>>
> > >>>I am not sure how useful this is to you, but if you have any other
> > >>>pointers as to what I should look at just ask.
> > >>
> > >>Are you running 5.1-release or 5.1-current?
> > >>
> > >>I ask because I have used ULE on two different kernels so far on this
> > >>box. One was 5.1-release running gnome2, mozilla, xmms. On this the
> > >>mouse stutters really badly whenever anything is being compiled.
> > >>
> > >>However on the 5.1-current kernel this behavior no longer happens and
> > >>the mouse is fine.
> > >>
> > >>I suspect ULE has had a few enhancements between the release and now.
> > >
> > > I am running 5.1-current
> > >
> > > Dual machine:
> > > FreeBSD slurp.rodal.no 5.1-CURRENT FreeBSD 5.1-CURRENT #3: Thu Sep 25
> > > 04:03:23 CEST 2003     root_at_slurp.rodal.no:/usr/obj/usr/src/sys/slurp
> > > i386
> > >
> > > School computer:
> > > FreeBSD hauk10.idi.ntnu.no 5.1-CURRENT FreeBSD 5.1-CURRENT #2: Fri Sep 26
> > > 09:12:55 CEST 2003 root_at_hauk10.idi.ntnu.no:/usr/obj/usr/src/sys/hauk10
> > > i386
> >
> > Ahh I tell you the other difference. I had a USB mouse when I tried ULE
> > with 5.1-release and it stuttered. It's just a ps2 one on the current
> > kernel where it's not stuttering.
> >
> > Matt.
>
> I have a PS/2 mouse, I run -CURRENT from 2 days ago, and I experience the
> stuttering too.
>
> It happens when compiling stuff, when loading complicated pages in Mozilla
> Firebird, and when logging out of GNOME 2.4 (the 'background fade' animation
> brings my Athlon XP 2000+ to its knees when I use SCHED_ULE).
>
> Arjan
>

Gnome seems to be a common theme.  Are you also using libkse?  There could
be some interaction there.

Thanks,
Jeff