Hi guys,
I just flash this kernel 4.4.6-4d0ae01-emlid-v7+ of yours onto my RPI 3.
Then w/o addition tinkering I started cyclictest with -l100000 -S -p80 (via SSH).
In 4 additional ssh sessions I started “dd if=/dev/zero of=/dev/null” in user space to get all 4 cores to 100% load.
Then, to mix things up, I added two more ssh sessions ans started “head -c 1G </dev/urandom pipe myfile”.
There are the results:
T: 0 ( 3776) P:80 I:1000 C:1000000 Min: 6 Act: 8 Avg: 9 Max: 441
T: 1 ( 3777) P:80 I:1500 C: 666669 Min: 6 Act: 7 Avg: 8 Max: 687
T: 2 ( 3778) P:80 I:2000 C: 499998 Min: 6 Act: 7 Avg: 8 Max: 586
T: 3 ( 3779) P:80 I:2500 C: 399999 Min: 5 Act: 10 Avg: 8 Max: 608
W/o the CPU and drive load, the average across cores is not bad:
T: 0 ( 3947) P:80 I:1000 C: 374197 Min: 5 Act: 9 Avg: 8 Max: 70
T: 1 ( 3948) P:80 I:1500 C: 249465 Min: 6 Act: 7 Avg: 7 Max: 36
T: 2 ( 3949) P:80 I:2000 C: 187098 Min: 6 Act: 7 Avg: 7 Max: 36
T: 3 ( 3950) P:80 I:2500 C: 149679 Min: 5 Act: 7 Avg: 7 Max: 38
What’s your experience in terms of load and latency?
Are my values to be expected.
Regards,
Daniel