[talk] talk Digest, Vol 170, Issue 7

Wed Mar 28 15:01:31 EDT 2018

Hi,
I agree on the NYC Bug presentation idea.

I will make a submission.

Thanks.
Bill - manager
w: Shmanagement.org

> On Mar 27, 2018, at 12:00 PM, talk-request at lists.nycbug.org wrote:
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> Today's Topics:
> 
>   1. Re: Measuring Internet Speed (Sujit K M)
>   2. Re: Measuring Internet Speed (Isaac (.ike) Levy)
>   3. A NYCBUG-related presentation that's not at NYCBUG
>      (James E Keenan)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 27 Mar 2018 17:27:47 +0530
> From: Sujit K M <sjt.kar at gmail.com>
> To: NYCBUG List <talk at lists.nycbug.org>
> Subject: Re: [talk] Measuring Internet Speed
> Message-ID:
>    <CAOPOgtCAS5SOLgi9kjY0VvBErjJXy-R0RRhVi3AmOu1uX9Ug+A at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
>> On Mon, Mar 26, 2018 at 8:29 PM, Chris Snyder <chsnyder at gmail.com> wrote:
>> On Sun, Mar 25, 2018 at 4:33 PM, Ivan "Rambius" Ivanov
>> <rambiusparkisanius at gmail.com> wrote:
>>> 
>>> 
>>> Spectrum / TWC are constantly offering me internet service speed
>>> upgrades for my home. How can I measure their internet speed and
>>> compare the old and new services?
>> 
>> Measurement Lab is is a consortium of research, industry and public-interest
>> partners dedicated to:
>> 
>> - Providing an open, verifiable measurement platform for global network
>> performance
>> - Hosting the largest open Internet performance dataset on the planet
>> - Creating visualizations and tools to help people make sense of Internet
>> performance
>> 
>> https://www.measurementlab.net/tests/
> 
> Don't know exact details looks in US This site does some measurements.
> 
> http://www.bandwidthplace.com/
> 
> It won't be difficult to come from scratch a program in Python to be written.
> 
> -- 
> -- Sujit K M
> 
> blog(http://kmsujit.blogspot.com/)
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Tue, 27 Mar 2018 09:26:48 -0400
> From: "Isaac (.ike) Levy" <ike at blackskyresearch.net>
> To: talk at lists.nycbug.org
> Subject: Re: [talk] Measuring Internet Speed
> Message-ID:
>    <1522157208.920540.1317625264.19F9C8CA at webmail.messagingengine.com>
> Content-Type: text/plain; charset="utf-8"
> 
>> On Sun, Mar 25, 2018, at 4:33 PM, Ivan Rambius Ivanov wrote:
>> Hello,
>> 
>> Spectrum / TWC are constantly offering me internet service speed
>> upgrades for my home. How can I measure their internet speed and
>> compare the old and new services?
>> 
>> Regards
>> Ivan
> 
> IMO, deep network performance testing gets into some existential meditations based on "what is network speed"?
> 
> If you have access to a stable second host on the internet with adequate bandwidth for your tests:
> 
>  netperf (personal go-to)
>  iperf (awesome features too)
> 
> Along with their man pages, there are tons of one-liner how-to's online for these classic tools.  Measuring network speed has so many variables, that there are infinite ways to go about this depending on what you're measuring.  These tools are purpose-built for testing many aspects of a line.
> Depending on the machines you're using to test, simply piping data from /dev/zero to nc or something may run into bottlenecks in your hosts respective TCP buffering, as well as various internal control buffers in programs which may throttle you from various network tools (scp, etc...).  While netperf and iperf are designed explicitly not to have such test-influencing bottlenecks, your OS network stack may be tuned in ways which can greatly affect the test- so if you're doing really hardcore line-speed testing, simply prepare to read and flip a *ton* of sysctls, to eliminate variables in testing (changes which will make your internet use from that machine surprisingly unusable on the network :)
> 
> Additionally, to *really* test a new line, concurrent connections are a big deal depending on the connectivity technology you have, (DOCSIS/CABLE vs. FIBER vs. ATM/DSL, etc...) - even full-duplex connectivity gets really interestingly weird with some of these link-layer technologies.  Tools like netperf and iperf themselves have parallel/concurrency type features, so you can test behavior of how you wish to use your line- (e.g. at home: watching a movie, while someone else in house is scp-ing files, or checking mail, or etc...  All this traffic is so different in what constitutes "fast".)
> 
> --
> Folks have listed some good online measurment tools already, I'd also say that Google currently has a shockingly good browser-based measurment tool, (as they collect your stats on inet performance...).  I stumbled into it when I was curious about internet performance from my phone.
> 
> Best,
> .ike
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Tue, 27 Mar 2018 10:46:38 -0400
> From: James E Keenan <jkeenan at pobox.com>
> To: talk at lists.nycbug.org
> Subject: [talk] A NYCBUG-related presentation that's not at NYCBUG
> Message-ID: <c67578b3-10fa-1b93-c93e-279601b69da5 at pobox.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Tomorrow night, Wednesday, March 28, I'll be speaking at a New York 
> Perlmongers technical meeting on the impact of Perl 5 development work 
> on the viability of CPAN libraries.
> 
> Now, I suspect that that description puts some of you to sleep right 
> away, but ...
> 
> There's a NYCBUG angle to this.
> 
> For a couple of months I've been discussing with NYCBUG admin concerning 
> the possibility of doing more testing of open-source projects on the 
> BSDs.  Ask yourself:  Does your favorite open-source project test 
> extensively on platforms other than L___x?
> 
> I'll touch upon these questions in the Wednesday presentation.  This 
> will be held at:
> 
> MongoDB
> 229 West 43 St (btw. 7th and 8th Aves -- former NY Times building)
> 6:30 pm
> 
> You'll have to register on meetup to attend, but the meeting is 
> otherwise free and open.
> 
> https://www.meetup.com/The-New-York-Perl-Meetup-Group/events/248536785/
> 
> Thank you very much.
> Jim Keenan
> 
> 
> 
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> End of talk Digest, Vol 170, Issue 7
> ************************************