re: All processes run on only one CPU

[matthew green <mrg%eterna23.net@localhost>]

> > That is for threads, isn't? I think you meant '1', or -1.

thanks adr :)

> Sure:
>
> load averages:  6.17,  6.09,  5.94;               up 67+01:27:45   15:47:04
> 65 processes: 6 runnable, 58 sleeping, 1 on CPU
> CPU0: 54.8% user, 41.3% nice,  3.9% system,  0.0% interrupt,  0.0% idle
> CPU1:  0.0% user,  0.1% nice,  7.3% system,  0.3% interrupt, 92.3% idle

if you monitor this, does it change often?  ie, we see that CPU0 is doing
almost all the work in this snapshot, but over time, what's the trend?

there's something weird going on with sched here.

is hardclock() happening on all cpus properly (at hz rate)?  i've seen
very bad scheduler perf if that didn't happen many years ago (some change
ad@ made in the netbsd-5 timeframe, IIRC), but it mostly lead to hangs.
maybe since then it's turned into working less poorly not hangs :)

i am not sure what sort of info we have about sched decisions in the
recent time, but maybe there's something we can dump out.


.mrg.