RELENG_7 jerky mouse and skipping sound (still a problem -BETA3)

Anish Mistry mistry.7 at osu.edu
Tue Jan 15 21:24:43 PST 2008


On Friday 11 January 2008, Kris Kennaway wrote:
> Anish Mistry wrote:
> > On Friday 04 January 2008, Kris Kennaway wrote:
> >> Kris Kennaway wrote:
> >>> David E. Thiel wrote:
> >>>> On Sun, Dec 30, 2007 at 11:12:26PM +0100, Kris Kennaway wrote:
> >>>>>> FWIW, the problem remains for me. Still terrible performance
> >>>>>> during compiles.
> >>>>>
> >>>>> OK.  Instead of going over all of the usual questions again,
> >>>>> can you point me to a previous mail in which you explain your
> >>>>> observations and test results in detail?
> >>>>
> >>>> The most recent is
> >>>> http://marc.info/?l=freebsd-stable&m=119428719505129&w=2, but
> >>>> it started way back at
> >>>> http://marc.info/?l=freebsd-current&m=118998090512027&w=2.
> >>>>
> >>>> I've tried a lot of stuff in between, and all I've been able
> >>>> to narrow it down to is that it's not a display driver issue,
> >>>> and that none of my swap partition is getting used, so that's
> >>>> not the problem. During compiles, my UP system with ULE still
> >>>> gets very unresponsive when compiling, sometimes taking up to
> >>>> 10 seconds just to draw a new terminal window. Even changing
> >>>> focus with the window manager can take several seconds. I'd
> >>>> like to provide more info, but I'm not sure what stats are
> >>>> useful for this particular issue. Please let me know. dmesg is
> >>>> at http://redundancy.redundancy.org/dmesg.txt, and kernel
> >>>> config is at http://redundancy.redundancy.org/DEEPTHOUGHT.
> >>>> Even though I'm still getting reported 80-95% memory
> >>>> utilization and no paging, I'm going to get an extra gig of
> >>>> RAM on order to see if that improves things. 2G of ram for a
> >>>> desktop, what's the world coming to? ;)
> >>>
> >>> OK, can you obtain a schedgraph trace when the problem is
> >>> manifesting? See /usr/src/tools/sched/ and previous discussion
> >>> in this or related threads.
> >>
> >> Anyone?  Time is rapidly running out to get this fixed in time
> >> for 7.0-RELEASE, so we need this trace ASAP.
> >
> > http://am-productions.biz/docs/ktr.out.gz
> >
> > Is there a way to export the graph once I'm looking in it in
> > schedgraph.py?
>
> The above trace does not show any compiler activity.  What was the
> process that was interfering with X performance in your case?
>
> You also have a CPU load of up to 17, which is rather high.  I am
> not sure it is reasonable to expect your machine to stay perfectly
> responsive while it is under that kind of load.
http://am-productions.biz/docs/ktr-2.out.gz

Here is another run while compiling thunderbird, though it might just 
show the same thing.  It lasted about 20 seconds and hopefully I 
caught some of it.

-- 
Anish Mistry
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