* Sven-Thorsten Dietrich <sven@xxxxxxxxxxxxxxxxxxxxx> wrote: > On Thu, 2007-08-16 at 21:37 -0300, Luis Claudio R. Goncalves wrote: > > Hello, > > > > The values in /proc/loadavgrt are sometimes the real load and sometimes > > garbage. As you can see in th tests below, it occurs from in 2.6.21.5-rt20 > > to 2.6.23-rc2-rt2. The code for calc_load(), in kernel/timer.c has not > > changed much in -rt patches. > > > > > Signed-off-by: Luis Claudio R. Goncalves <lclaudio@xxxxxxxx> > > --- > > > > diff --git a/kernel/sched.c b/kernel/sched.c > > index 811a502..c61609a 100644 > > --- a/kernel/sched.c > > +++ b/kernel/sched.c > > @@ -2520,6 +2520,13 @@ unsigned long rt_nr_uninterruptible(void) > > for_each_online_cpu(i) > > sum += cpu_rq(i)->rt_nr_uninterruptible; > > > > + /* > > + * Since we read the counters lockless, it might be slightly > > + * inaccurate. Do not allow it to go below zero though: > > + */ > > + if (unlikely((long)sum < 0)) > > + sum = 0; > > + > > return sum; > > } > > > > diff --git a/linux-2.6.21.x86_64/kernel/timer.c b/linux-2.6.21.x86_64_lc/kernel/timer.c > > index 882ca9d..0e49bf6 100644 > > --- a/linux-2.6.21.x86_64/kernel/timer.c > > +++ b/linux-2.6.21.x86_64_lc/kernel/timer.c > > @@ -1432,23 +1432,25 @@ unsigned long avenrun_rt[3]; > > static inline void calc_load(unsigned long ticks) > > { > > unsigned long active_tasks; /* fixed-point */ > > + unsigned long active_rt_tasks; /* fixed-point */ > > static int count = LOAD_FREQ; > > > > count -= ticks; > > if (unlikely(count < 0)) { > > active_tasks = count_active_tasks(); > > + active_rt_tasks = count_active_rt_tasks(); > > Where is this used? what is "this"? /proc/loadavg? Or the code/patch you quoted? Ingo - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html