Pulled down the latest
https://github.com/network-quality/goresponsiveness and built it with
go.1.18.
Some notes in #s. Tests were performed via linux kernel
Linux milliways 5.4.0-80-lowlatency #90-Ubuntu SMP PREEMPT Fri Jul 9
23:56:54 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
over tethered wifi to a oneplus nord n105g running oxygen OS
11.05BE.86AA, linux kernel 4.19.125perf+
# No cake on the wifi:
./goresponsiveness --config mensura.cdn-apple.com --port 443 --path
/api/v1/gm/config
04-06-2022 15:52:32 UTC Go Responsiveness to mensura.cdn-apple.com:443...
Download: 7.594 Mbps ( 0.949 MBps), using 28 parallel connections.
# Really should cap this. 28 flows at this rate is certain to end in tears.
Upload: 1.906 Mbps ( 0.238 MBps), using 12 parallel connections.
Total RTTs measured: 5
RPM: 170
# cake 6mbit/3mbit
davet@milliways:~/git/goresponsiveness$ ./goresponsiveness --config
mensura.cdn-apple.com --port 443 --path /api/v1/gm/config
04-06-2022 15:53:57 UTC Go Responsiveness to mensura.cdn-apple.com:443...
Download: 8.343 Mbps ( 1.043 MBps), using 12 parallel connections.
Upload: 2.500 Mbps ( 0.312 MBps), using 12 parallel connections.
Total RTTs measured: 5
RPM: 182
./goresponsiveness --config mensura.cdn-apple.com --port 443 --path
/api/v1/gm/config
04-06-2022 15:55:11 UTC Go Responsiveness to mensura.cdn-apple.com:443...
Download: 6.750 Mbps ( 0.844 MBps), using 12 parallel connections.
Upload: 2.000 Mbps ( 0.250 MBps), using 36 parallel connections.
# 36??? flows at this rate is utterly certain to end in tears.
Total RTTs measured: 5
RPM: 154
# cake output after these testss
Tin 0
thresh 3Mbit
target 6.1ms
interval 101.1ms
pk_delay 14.7ms
av_delay 6.4ms
sp_delay 8us
backlog 0b
pkts 15275
bytes 10576809
way_inds 252
way_miss 191
way_cols 0
drops 2807
marks 0
ack_drop 0
sp_flows 14
bk_flows 1
un_flows 0
max_len 6470
quantum 300
# RFC3168 style ECN IS enabled on the mensura server. Yay!
# If I enable it on my client
./goresponsiveness --config mensura.cdn-apple.com --port 443 --path
/api/v1/gm/config
04-06-2022 16:03:47 UTC Go Responsiveness to mensura.cdn-apple.com:443...
Error: Saturation could not be completed in time and no provisional
rates could be accessed. Test failed.
Tin 0
thresh 6Mbit
target 5.0ms
interval 100.0ms
pk_delay 23.3ms
av_delay 13.6ms
sp_delay 16us
backlog 0b
pkts 40856
bytes 34440011
way_inds 774
way_miss 402
way_cols 0
drops 956
marks 8907
# mark away!
ack_drop 0
sp_flows 63
bk_flows 1
un_flows 0
max_len 1442
quantum 300
# with ecn, repeated tests almost always timeout. It would be useful
if they displayed their attempted params...
./goresponsiveness --config mensura.cdn-apple.com --port 443 --path
/api/v1/gm/config
04-06-2022 16:10:30 UTC Go Responsiveness to mensura.cdn-apple.com:443...
Download: 4.562 Mbps ( 0.570 MBps), using 12 parallel connections.
Upload: 2.594 Mbps ( 0.324 MBps), using 44 parallel connections.
# this inversion between lower bandwdith and higher connects needs to
get looked at.
Total RTTs measured: 5
# perhaps a goal of trying to measure for more RTTs than five would help.
--
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org
Dave Täht CEO, TekLibre, LLC
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