Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7

[Rui Nuno Capela]

Hi,

Here goes my latest stats, now regarding under 2.6.10-rc1 and running 
jackd -R -r44100 -p64 -n2 with 8 loaded fluidsynth instances, on a P4
2.533GHz UP 512MB laptop.

The main change from my previous posted results are that buffer/period
size has been decreased from 128 to 64 frames, being now a bit/much more
harnessing than before.

                              2.6.10-rc1 2.6.10-rc1-mm2 RT-V0.7.7
                              ---------- -------------- ---------
XRUN Rate . . . . . . . . . :   687.6        832.0         45.6   /hour
Delay Rate (>spare time)  . :  1354.8       1517.3         43.2   /hour
Delay Rate (>1000 usecs)  . :  1146.0       1245.3          3.6   /hour
Delay Maximum . . . . . . . :  4510         8786         1249     usecs
Cycle Maximum . . . . . . . :   957          976          946     usecs
Average DSP Load  . . . . . :    51.4         51.9         55.2   %
Average CPU System Load . . :     6.4          6.7         13.2   %
Average CPU User Load . . . :    40.3         40.4         41.9   %
Average CPU Nice Load . . . :     0.0          0.0          0.0   %
Average CPU I/O Wait Load . :     0.0          0.1          0.1   %
Average CPU IRQ Load  . . . :     0.0          0.0          0.0   %
Average CPU Soft-IRQ Load . :     0.0          0.0          0.0   %
Average Interrupt Rate  . . :  1673.7       1674.3       1675.4   /sec
Average Context-Switch Rate : 10967.4      10967.9      13940.9   /sec

As a first look, the -mm2 branch is performing quite badly, even though it
has been configured with the PREEMPT_BKL option set.

S/W versions are:

jackd 0.99.10
fluidsynth 1.0.5

Cheers.
-- 
rncbc aka Rui Nuno Capela
rncbc@xxxxxxxxx


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