debloat-testing loadlatency test

[Dave Täht]

Moving this convo to bloat-devel to reduce the noise level. I got my
somewhat debloated network up late last night and fired off the Path:
openrd <-> wndr3700 <-> davepc With loadlatency.

The wndr3700 has the buffer size in the ath9k driver reduced to a depth
of 3, TX_RETRIES of 4, txqueuelen of 2, and davepc is using
debloat-testing with the iwllagn driver, txqueuelen of 4. The two
devices connect at 36Mbit, however.

The conditions of this test are (purposely) poor, the two wireless
devices are separated by 3 floors, and 2 concrete walls. In other (iperf
related) testing I've seen 13% packet loss on ping.

Scenario 1: 0 uploads, 1 downloads... 2101 KiB/s down, 4.07 Hz smoothness
Scenario 2: 1 uploads, 0 downloads... 1614 KiB/s up, 4.50 Hz smoothness
Scenario 3: 0 uploads, 2 downloads... 2106 KiB/s down, 0.04 Hz smoothness
Scenario 4: 1 uploads, 1 downloads... 345 KiB/s up, 1604 KiB/s down, 0.07 Hz smoothness
Scenario 5: 2 uploads, 0 downloads... 1661 KiB/s up, 0.14 Hz smoothness
Scenario 6: 0 uploads, 3 downloads... 2100 KiB/s down, 0.04 Hz smoothness
Scenario 7: 1 uploads, 2 downloads... 244 KiB/s up, 1822 KiB/s down, 0.02 Hz smoothness
Scenario 8: 2 uploads, 1 downloads... 553 KiB/s up, 1419 KiB/s down, 0.04 Hz smoothness
Scenario 9: 3 uploads, 0 downloads... 1672 KiB/s up, 0.15 Hz smoothness
Scenario 10: 0 uploads, 4 downloads... 1845 KiB/s down, 0.01 Hz smoothness
Scenario 11: 1 uploads, 3 downloads... 186 KiB/s up, 1861 KiB/s down, 0.05 Hz smoothness
Scenario 12: 2 uploads, 2 downloads... 388 KiB/s up, 1630 KiB/s down, 0.04 Hz smoothness
Scenario 13: 3 uploads, 1 downloads... 744 KiB/s up, 1234 KiB/s down, 0.09 Hz smoothness
Scenario 14: 4 uploads, 0 downloads... 1697 KiB/s up, 0.07 Hz smoothness
Scenario 15: 0 uploads, 32 downloads... 1982 KiB/s down, 0.00 Hz smoothness
Scenario 16: 1 uploads, 31 downloads... 51 KiB/s up, 1810 KiB/s down, 0.00 Hz smoothness
Scenario 17: 16 uploads, 16 downloads... 

^C

real	416m30.222s
user	3m3.230s
sys	25m41.070s

I aborted the test when I got up this morning.

-- 
Dave Taht
http://nex-6.taht.net