From: Rich Brown <notifications@github.com> To: tohojo/flent <flent@noreply.github.com> Cc: Subscribed <subscribed@noreply.github.com> Subject: Re: [Flent-users] [tohojo/flent] flent: extremely high ping times on macOS (#178) Date: Sun, 08 Sep 2019 17:06:51 -0700 [thread overview] Message-ID: <tohojo/flent/issues/178/529258895@github.com> (raw) In-Reply-To: <tohojo/flent/issues/178@github.com> [-- Attachment #1.1: Type: text/plain, Size: 3795 bytes --] Hmmm... The `--test-parameter=ping_hosts=gstatic.com` information appears in the command-line summary but not in the charts. Is this correct? If so, the charts display significantly different latency depending on which -H host gets used. The Terminal display (bottom) shows fairly consistent ping times and transfer rate measurements using either of the two hosts. This raises two questions: 1. Could flent charts use the `--test-parameter=ping_hosts=...` instead of values from the -H host? 2. Why is there a discrepency between the `--test-parameter=ping_hosts=...` reading (showing 30-38 msec in my tests) and a separate, concurrent fping test (see original post, where it was running 20-22 msec)? Thanks. **Test to flent-fremont.bufferbloat.net gives latency > 100 msec:** <img width="586" alt="image" src="https://user-images.githubusercontent.com/1094930/64496066-28d8a400-d26f-11e9-89ea-8b1a03b69872.png"> **Test to netperf.bufferbloat.net gives latency 55-65 msec:** <img width="586" alt="image" src="https://user-images.githubusercontent.com/1094930/64496060-1d857880-d26f-11e9-9793-a36c7e0b0423.png"> **Text summary from flent-fremont.bufferbloat.net:** ``` bash-3.2$ flent -x -H flent-fremont.bufferbloat.net -t "Rich_Test" --test-parameter=ping_hosts=gstatic.com --te=download_streams=4 tcp_ndown Started Flent 1.3.0 using Python 2.7.15. Starting tcp_ndown test. Expected run time: 70 seconds. Data file written to ./tcp_ndown-2019-09-08T193622.518606.Rich_Test.flent.gz. Summary of tcp_ndown test run from 2019-09-08 23:36:22.518606 Title: 'Rich_Test' avg median # data pts Ping (ms) ICMP : 104.28 105.00 ms 350 Ping (ms) ICMP gstatic.com (extra) : 33.10 33.65 ms 350 TCP download avg : 1.72 1.74 Mbits/s 301 TCP download sum : 6.87 6.95 Mbits/s 301 TCP download::1 : 1.72 1.68 Mbits/s 285 TCP download::2 : 1.85 1.77 Mbits/s 287 TCP download::3 : 1.62 1.61 Mbits/s 284 TCP download::4 : 1.70 1.70 Mbits/s 283 bash-3.2$ ``` **Text summary from netperf.bufferbloat.net:** ``` bash-3.2$ flent -x -H netperf.bufferbloat.net -t "netperf.bufferbloat.net" --test-parameter=ping_hosts=gstatic.com --te=download_streams=4 tcp_ndown Started Flent 1.3.0 using Python 2.7.15. Starting tcp_ndown test. Expected run time: 70 seconds. Data file written to ./tcp_ndown-2019-09-08T194842.664611.netperf_bufferbloat_net.flent.gz. Summary of tcp_ndown test run from 2019-09-08 23:48:42.664611 Title: 'netperf.bufferbloat.net' avg median # data pts Ping (ms) ICMP : 54.51 56.30 ms 349 Ping (ms) ICMP gstatic.com (extra) : 35.73 38.00 ms 349 TCP download avg : 1.73 1.74 Mbits/s 300 TCP download sum : 6.92 6.95 Mbits/s 300 TCP download::1 : 2.40 2.28 Mbits/s 279 TCP download::2 : 1.19 1.09 Mbits/s 259 TCP download::3 : 2.47 2.32 Mbits/s 278 TCP download::4 : 0.96 0.92 Mbits/s 253 bash-3.2$ ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/tohojo/flent/issues/178#issuecomment-529258895 [-- Attachment #1.2: Type: text/html, Size: 5729 bytes --] [-- Attachment #2: Type: text/plain, Size: 151 bytes --] _______________________________________________ Flent-users mailing list Flent-users@flent.org http://flent.org/mailman/listinfo/flent-users_flent.org
next prev parent reply other threads:[~2019-09-09 0:07 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-09-06 11:57 Rich Brown 2019-09-06 14:49 ` Dave Täht 2019-09-06 15:15 ` Rich Brown 2019-09-06 17:58 ` Toke Høiland-Jørgensen 2019-09-06 18:58 ` Rich Brown 2019-09-06 22:46 ` Toke Høiland-Jørgensen 2019-09-08 22:33 ` Rich Brown 2019-09-08 23:04 ` Toke Høiland-Jørgensen 2019-09-09 0:06 ` Rich Brown [this message] 2019-09-09 12:25 ` Toke Høiland-Jørgensen 2019-09-09 15:07 ` Rich Brown 2019-09-09 15:10 ` Rich Brown 2019-09-09 15:13 ` Rich Brown 2019-09-09 17:00 ` Toke Høiland-Jørgensen 2019-09-09 17:01 ` Toke Høiland-Jørgensen 2019-09-11 16:31 ` Toke Høiland-Jørgensen 2019-09-12 12:26 ` Rich Brown 2019-09-12 12:26 ` Rich Brown
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style List information: https://lists.flent.org/postorius/lists/flent-users.flent.org/ * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=tohojo/flent/issues/178/529258895@github.com \ --to=notifications@github.com \ --cc=flent@noreply.github.com \ --cc=reply+AHVNJP7WXYYIEM7YHLOAS6F3QLMCXEVBNHHB2OJTQQ@reply.github.com \ --cc=subscribed@noreply.github.com \ --subject='Re: [Flent-users] [tohojo/flent] flent: extremely high ping times on macOS (#178)' \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox