On Tue, Jun 13, 2000 at 07:01:29AM -0400, Rui Sousa wrote:
> "Brian J. Conway" wrote:
> >
> > I posted last week in regards to a Tyan Tiger 100 S1832DL
> > motherobard that was strangely running processors uncontrollably
> > (http://marc.theaimsgroup.com/?l=linux-smp&m=96018117825734&w=2).
> > I have since done further research with swapping out hardware
> > finding the best available hardware combinations to rule out IRQ
> > mishandling. I have tried various BIOS revisions, some with more
> > success than others. All of the results have been the same in
> > varying degrees with both MPS 1.1 and 1.4 and all the latest
> > kernels. Under the better BIOS revisions, xmms will start out
> > racing both CPUs at 50% and then after a while drop off to about
> > 2% on each CPU.
>
> I have a similar setup (same motherboard and sound card) and I also
> observe the same behavior with xmms. At some point the load
> increases steadily during ~20 seconds and then drops to zero. It
> remains there for a while and then the cycle repeats. The load
> however never goes above ~50% (on dual 350 MHz PII) and the average
> load is ~2%.
[Sorry, I missed first part of this thread]
I see the same thing on a BP6 for sometime now (many months), and
seems to be strictly SMP related. For me, many of the windowmaker dock
apps do this. It is not just xmms. This has been posted and discussed
here before. Also, I filed it with bugzilla, to no avail. I've got a
load monitor on my dock, and I just watch it cycle through every few
minutes. It does not seem to effect performance (that I can tell), and
I have wondered if it is maybe a phantom load.
For me, watching this with xosview, or wmBP6, the processors will
spike one at a time with a brief pause in between. According to
xosview, they actually hit 100% load (per individual CPU - 50% system
load). Then a several minute pause, then the cycle repeats. I have
watched for an answer to this mystery in many places for some time
now, and have yet to find it.
--
Hal B
[EMAIL PROTECTED]
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