Pete Heist <notificati...@github.com> writes:
> An update:
>
> * JSON is working, sample attached in case there are comments / wishes.
>
> * Median (where possible) and stddev are working.
While I'm obsessive, so many seem to think networks behave with gaussian
(where the concept of stdev comes from) distributions.
Pareto distributions are closer but still inadaquate... Poisson is poison:
http://www.pollere.net/Pdfdocs/QrantJul06.pdf
but by all means, throw stdev in there. It's sometimes useful.
I am usually most interested in the outliers above the 98th percentile,
and fine some use in seven number summaries also.
>
> * pflag adds 160K to executable, passing for now.
>
> * Interval restriction on non-root users works. "No can do" in Windows so
> far
> (uid always -1). Tried looking at well-known Windows admin SIDs but it's
> unclear I can really get that to work right on different Windows
> versions/configs so...punt for now and no restriction in Windows.
>
> * Spent more time than I should have making different combinations of
> timestamp (none, receive, send, both, midpoint) and clock (wall, monotonic,
> both) modes working, but at least now packets can be reduced in size by
> sacrificing timestamps or clock modes for simulating VoIP codecs that have
> smaller payloads, which was one of my goals.
>
> * Read the OWAMP RFC, mostly. Good lord. At least it gave me an idea that
> the
> server can (later) return received packet count and/or a bitmap of recently
> received packets for a flow so we can distinguish between upstream and
> downstream packet loss, which is not possible right now.
Don't let that RFC freeze you up! (talk about overenginering!)
> * Last thing to do is the handshake (saved the best for last!) Did some more
> thinking on this to make it more robust than my previous design. Maybe
> about a
> week to complete, we'll see, as this mixes with life stuff too...
> * Stats output now in columns for easier reading:
>
> sysadmin@luke:~ $ ./irtt -i 10ms -d 30s -l 160 a.b.c.d
> IRTT to a.b.c.d (a.b.c.d:2112)
>
> Min Mean Median Max Stddev
> --- ---- ------ --- ------
> RTT 11.59ms 15.73ms 14.39ms 49.34ms 3.64ms
> send delay 5.9ms 9.23ms 6.8ms 43.16ms 3.48ms
> receive delay 5.42ms 6.5ms 7.59ms 17.88ms 937µs
>
> IPDV (jitter) 1.25µs 2.52ms 4.15ms 29.16ms 2.75ms
> send IPDV 36ns 2.41ms 595µs 28.84ms 2.69ms
> receive IPDV 60ns 734µs 3.55ms 9.57ms 914µs
>
> send call time 56.3µs 70.6µs 236µs 22.7µs
> timer error 4ns 11.3µs 9.59ms 187µs
> server proc. time 6.93µs 7.62µs 68.1µs 2.23µs
>
> duration: 30.2s (wait 148ms)
> packets received/sent: 2996/2996 (0.00% loss)
> bytes received/sent: 479360/479360
> receive/send rate: 127.9 Kbps / 127.9 Kbps
> timer stats: 4/3000 (0.13%) missed, 0.11% error
>
> g711.json.gz
>
> —
> You are receiving this because you commented.
> Reply to this email directly, view it on GitHub, or mute the thread.
--
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/106#issuecomment-332043470
_______________________________________________
Flent-users mailing list
Flent-users@flent.org
http://flent.org/mailman/listinfo/flent-users_flent.org
