Oh thanks Sebastian. I have irtt installed, but it looks like I need to start the server. That's easy. Doing it now. ( Incidentally, I did write a golang based icmp pinger. It can ping at very high rates: https://github.com/edgio/icmpengine. Really should write one with rust using io_uring... ) On Sun, Oct 15, 2023 at 8:53 AM Sebastian Moeller wrote: > If I recall correctly, flent will use irtt for its delay probes if > available on both ends. Sure fixing fping seems like a good thing longer > term, but to get data in quickly, maybe try irtt instead? > > > On 15 October 2023 17:11:23 CEST, dave seddon via Cake < > cake@lists.bufferbloat.net> wrote: > >> G'day, >> >> I've put more work into a test framework around the qdisc tests, but >> unfortunately flent doesn't work easily with Ubuntu LTS ( >> https://github.com/tohojo/flent/issues/232, which I think is an issue >> with flent parsing the fping output ). >> >> Results and graphs in this sheet: >> >> https://docs.google.com/spreadsheets/d/1T59QwEdNwJFm4TgDFA_NY98gicOm8ABXKvDsSIMz9ag/edit#gid=1203641125 >> >> Raw results of x2 test runs are here: >> >> https://github.com/randomizedcoder/qdisc_results/blob/main/qdisc/report.csv >> >> Each run: >> >> https://github.com/randomizedcoder/qdisc_results/blob/main/qdisc/2023-10-13T18%3A45%3A45/report.csv >> >> https://github.com/randomizedcoder/qdisc_results/blob/main/qdisc/2023-10-14T14%3A22%3A53/report.csv >> >> Full iperf outputs are available too, for example: https://github.com/randomizedcoder/qdisc_results/blob/main/qdisc/2023-10-13T18%3A45%3A45/nanopi-r2s/fq_codel/iperf/test/16_iperf/stdout >> >> >> Logs for each run are also available, for example: >> https://github.com/randomizedcoder/qdisc_results/blob/main/qdisc/2023-10-13T18%3A45%3A45/log.json >> >> The code repo updated here: https://github.com/randomizedcoder/cake , >> with thehttps://github.com/randomizedcoder/cake/blob/main/README.md >> which explains how the test work. >> Updated google doc is started here: >> https://docs.google.com/document/d/1fYKj3BS89aB9drg_DsSq289xSdVQhn1zUJYCj0WuCs0/edit?usp=sharing >> >> Based on the questions on this list earlier, there is a folder with >> device information for each of the devices >> https://github.com/randomizedcoder/cake/tree/main/device_info >> >> For example, the Pi4 and the Lichee Pi (risc-v) hardware layout is here: >> - https://github.com/randomizedcoder/cake/blob/main/device_info/pi4/hwloc-ls-pi4.png >> >> - >> https://github.com/randomizedcoder/cake/blob/main/device_info/lpi4a/hwloc-ls-lpi4a.png >> >> The switch has also been upgraded to a Cisco 3750x, which I think based >> on the "show interface" output has a max queue size of 40 frames. The test >> process clears the counters before each test and gathers the "show >> interface" output at the end. >> >> The Lichee Pi 4A doesn't look good ( >> https://wiki.sipeed.com/hardware/en/lichee/th1520/lp4a.html ) >> >> [image: image.png] >> I really wish the flent was working, so I'll probably see if I can work >> out the parsing. >> >> Thanks, >> Dave Seddon >> >> On Fri, Oct 13, 2023 at 10:25 AM dave seddon >> wrote: >> >>> My bad. There's a bug for this.... Looks like I have to downgrade fping >>> >>> https://github.com/tohojo/flent/issues/232 >>> https://github.com/schweikert/fping/issues/203 >>> >>> On Fri, Oct 13, 2023 at 8:59 AM dave seddon >>> wrote: >>> >>>> G'day, >>>> >>>> I've been working away on automation of the tests. Pretty close to >>>> having much nicer tests with a lot more details. I've also got the risc-v >>>> device working. >>>> >>>> However, I've run into something funny with flent. Flent is not happy >>>> with fping or ping. >>>> >>>> das@3rd:~/Downloads/cake/cmd/run_qdiscs_tests$ /usr/bin/sudo >>>> /usr/sbin/ip netns exec network101 /usr/bin/flent rrul --output >>>> /tmp/qdisc/2023-10-13T15:53:21/pi4/noqueue/flent/test/15_flent/flent_pi4_noqueue.png >>>> --data-dir /tmp/qdisc/2023-10-13T15:53:21/pi4/noqueue/flent/test/15_flent/ >>>> --format summary --plot all_scaled --title-extra >>>> 2023-10-13T15:53:21_pi4_noqueue --note 2023-10-13T15:53:21_pi4_noqueue >>>> --extended-metadata --host 172.17.51.10 --length 60 --ipv4 --socket-stats >>>> Starting Flent 2.0.1 using Python 3.10.12. >>>> Starting rrul test. Expected run time: 70 seconds. >>>> WARNING: Found fping, but couldn't parse its output. Not >>>> using. <---------------- ??? >>>> ERROR: Runner Ping (ms) ICMP failed check: Cannot parse output of the >>>> system ping binary (/usr/bin/ping). Please install fping v3.5+. <----- ?? >>>> >>>> das@3rd:~/Downloads/cake/cmd/run_qdiscs_tests$ dpkg --list | grep ping >>>> ii fping 5.1-1 >>>> amd64 sends ICMP ECHO_REQUEST packets to network hosts >>>> ii iputils-ping 3:20211215-1 >>>> amd64 Tools to test the reachability of network hosts >>>> ii kpartx 0.8.8-1ubuntu1.22.04.1 >>>> amd64 create device mappings for partitions >>>> ii libharfbuzz0b:amd64 2.7.4-1ubuntu3.1 >>>> amd64 OpenType text shaping engine (shared library) >>>> das@3rd:~/Downloads/cake/cmd/run_qdiscs_tests$ fping --version >>>> fping: Version 5.1 >>>> das@3rd:~/Downloads/cake/cmd/run_qdiscs_tests$ ping -V >>>> ping from iputils 20211215 >>>> >>>> das@3rd:~/Downloads/cake/cmd/run_qdiscs_tests$ cat /etc/lsb-release >>>> DISTRIB_ID=Ubuntu >>>> DISTRIB_RELEASE=22.04 >>>> DISTRIB_CODENAME=jammy >>>> DISTRIB_DESCRIPTION="Ubuntu 22.04.3 LTS" >>>> >>>> I did install via "apt install fping" >>>> >>>> Any thoughts please? >>>> >>>> Kind regards, >>>> Dave >>>> >>>> On Thu, Sep 28, 2023 at 6:27 AM Sebastian Moeller via Cake < >>>> cake@lists.bufferbloat.net> wrote: >>>> >>>>> >>>>> >>>>> > On Sep 28, 2023, at 15:19, David Lang wrote: >>>>> > >>>>> > On Thu, 28 Sep 2023, Sebastian Moeller via Cake wrote: >>>>> > >>>>> >> P.S.: I am tempted, but will likely wait until they are available >>>>> in quantity and hope that the street price comes down a bit before getting >>>>> one ;) >>>>> > >>>>> > They aren't available at all yet, and it's not clear when they will >>>>> be available. >>>>> >>>>> The announcement was end of October, but I think I could >>>>> pre-order right now if I was feeling an urge. You are right though, >>>>> announced != available or delivered. >>>>> >>>>> Regards >>>>> Sebastian >>>>> >>>>> P.S.: I have a pi400 in use as "desktop" for my oldest kid, this is >>>>> close to be actually generally usable, I would guess that changing a >>>>> potential p500 from the pi400's 4GB to 8 GB together with the other >>>>> imprivements the 5 brings might push it over the threshold into the truly >>>>> useful category. Which probably means that either a potential pi500 will >>>>> come late and probably with only 4 GB, but let's see how this works out now >>>>> that the supply situation is less problematic. >>>>> And I understand that there are other capable ARM based SoCs for >>>>> homerouter/desktop duty, I just happen ot have a soft spot for the >>>>> raspberry project ;) >>>>> >>>>> > >>>>> > David Lang >>>>> >>>>> _______________________________________________ >>>>> Cake mailing list >>>>> Cake@lists.bufferbloat.net >>>>> https://lists.bufferbloat.net/listinfo/cake >>>>> >>>> >>>> >>>> -- >>>> Regards, >>>> Dave Seddon >>>> +1 415 857 5102 >>>> >>> >>> >>> -- >>> Regards, >>> Dave Seddon >>> +1 415 857 5102 >>> >> >> -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > -- Regards, Dave Seddon +1 415 857 5102