Re: [Cerowrt-devel] speedtest.sh script available

[Dave Taht <dave.taht@gmail.com>]

aaron: tcp is highly sensitive to RTT and I imagine the rtt from paris
to his server is rather high. See
what happens via demo.tohojo.dk which is much closer to you.

(ping times between there and rich's server would be good to have)



On Tue, Mar 25, 2014 at 9:09 AM, Aaron Wood <woody77@gmail.com> wrote:
> Nice!  It gives me what I'd expect for my setup, although the TCP rate is
> only 2/3 the line rate on DSL (upload is better at 80%).
>
> ..............................................................
>  Download:  14.09 Mbps
>   Latency: (in msec, 62 pings, 0.00% packet loss)
>       Min: 30.157
>     10pct: 30.691
>    Median: 33.412
>       Avg: 34.044
>     90pct: 36.970
>       Max: 48.250
> ..............................................................
>    Upload:  0.87 Mbps
>   Latency: (in msec, 57 pings, 8.06% packet loss)
>       Min: 30.655
>     10pct: 30.744
>    Median: 36.658
>       Avg: 36.379
>     90pct: 41.414
>       Max: 46.451
>
> I'm running 21000/1100 as my rate-limiting settings in CeroWRT (3.10.32-12).
>
> That packet loss is what kills my UDP ping streams.  It doesn't seem to
> happen if I use the Free.fr box directly, and only shows when I use CeroWRT
> as the bottle-neck.
>
> -Aaron
>
>
> On Tue, Mar 25, 2014 at 4:16 PM, Rich Brown <richb.hanover@gmail.com> wrote:
>>
>> I have created a 'speedtest.sh' shell script that simulates the
>> http://speedtest.net, but does it one better.
>>
>> The default options for the script do a separate TCP_MAERTS and TCP_STREAM
>> for 60 seconds while collecting ping latency. The output of the script shows
>> the down/upload speed as well as a summary of the ping latency, including
>> min, max, average, median, and 10th and 90th percentiles.
>>
>> The script makes it easier to optimize my settings because it makes the
>> latency figures more concrete. (I used to eyeball the ping output, saying,
>> "Hmmm. I think there were fewer outliers than before...")
>>
>> You can see the script on the "Quick Test for Bufferbloat" page on the
>> wiki at:
>>
>>
>> http://www.bufferbloat.net/projects/cerowrt/wiki/Quick_Test_for_Bufferbloat#Speedtestsh-shell-script
>>
>> Enjoy!
>>
>> Rich
>> _______________________________________________
>> Cerowrt-devel mailing list
>> Cerowrt-devel@lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/cerowrt-devel
>
>
>
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>



-- 
Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html