From: Rich Brown <notifications@github.com>
To: tohojo/flent <flent@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Subject: [Flent-users] [tohojo/flent] flent: extremely high ping times on macOS (#178)
Date: Fri, 06 Sep 2019 04:57:59 -0700 [thread overview]
Message-ID: <tohojo/flent/issues/178@github.com> (raw)
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Using Flent 1.3.0 with fping 4.2 on macOS 10.2.6:
I see high ping times (>100 msec in the following report) despite the fact that actual ping times (measured by fping during the flent test) are 20-30 msec, and none higher that 47 msec. (I am on 7mbps/768kbps DSL, so the 6.95mbps seems accurate.)
Here is the data file. [tcp_ndown-2019-09-06T074544.888052.Rich_Test.flent.gz](https://github.com/tohojo/flent/files/3583797/tcp_ndown-2019-09-06T074544.888052.Rich_Test.flent.gz)
What other information could I provide? Thanks.
```
bash-3.2$ flent -x -H flent-fremont.bufferbloat.net -t "Rich_Test" --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-2019-09-06T074544.888052.Rich_Test.flent.gz.
Summary of tcp_ndown test run from 2019-09-06 11:45:44.888052
Title: 'Rich_Test'
avg median # data pts
Ping (ms) ICMP : 104.03 105.00 ms 350
TCP download avg : 1.71 1.74 Mbits/s 300
TCP download sum : 6.83 6.95 Mbits/s 300
TCP download::1 : 1.55 1.56 Mbits/s 281
TCP download::2 : 1.85 1.83 Mbits/s 282
TCP download::3 : 1.53 1.54 Mbits/s 282
TCP download::4 : 1.91 1.90 Mbits/s 287
bash-3.2$
```
```
bash-3.2$ fping --version
fping: Version 4.2
fping: comments to david@schweikert.ch
bash-3.2$ fping -c 1000 gstatic.com -D
[1567770338.594778] gstatic.com : [0], 84 bytes, 20.7 ms (20.7 avg, 0% loss)
[1567770339.600662] gstatic.com : [1], 84 bytes, 21.7 ms (21.2 avg, 0% loss)
[1567770340.602339] gstatic.com : [2], 84 bytes, 21.5 ms (21.3 avg, 0% loss)
[1567770341.605205] gstatic.com : [3], 84 bytes, 22.2 ms (21.5 avg, 0% loss)
[1567770342.608899] gstatic.com : [4], 84 bytes, 21.0 ms (21.4 avg, 0% loss)
[1567770343.613397] gstatic.com : [5], 84 bytes, 21.4 ms (21.4 avg, 0% loss)
[1567770344.618612] gstatic.com : [6], 84 bytes, 21.5 ms (21.4 avg, 0% loss)
[1567770345.618789] gstatic.com : [7], 84 bytes, 20.8 ms (21.3 avg, 0% loss)
...
```
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next reply other threads:[~2019-09-06 11:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-06 11:57 Rich Brown [this message]
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
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
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