[tex-live] problems with tl2016 pretest

[Zdenek Wagner]

2016-05-12 16:39 GMT+02:00 Nelson H. F. Beebe <beebe at math.utah.edu>:

> Jim Diamond <Jim.Diamond at acadiau.ca> asks on Thu, 12 May 2016 09:53:23
> -0300
>
> >> The download speed is very slow.  I don't know if
> >> ftp.math.utah.edu throttles its connections or is just very busy,
>
> No, we do not throttle connections, and our uplink should be quite
> fast.  If you can run
>
>         traceroute www.math.utah.edu
>
> from your system, that should tell you how many router hops it takes,
> and which ones are the bandwidth bottlenecks.
>
> I just made a test from a guest account that I have at another
> university in the state of California:
>
>         wget
> http://www.math.utah.edu/pub/texlive/bin/i386-freebsd-9.1.tar.xz
>         ...
>         100%[======================================>] 35,882,840
> 29.1MB/s   in 1.2s
>
>
>         wget
> ftp://ftp.math.utah.edu/pub/texlive/bin/i386-freebsd-9.1.tar.xz
>         ...
>         100%[======================================>] 35,882,840
> 33.7MB/s   in 1.0s
>
> At the moment, that is the only user account that I have outside the
> state of Utah.
>

Here in Prague, 50s via http, 10s via ftp. The bottleneck seems to be in
France as reported by traceroute. The second wget via http succeeded within
20s but the file might be cached in one of the squid's on the way.

>
> Perhaps others on this list could report download times for the above
> URLs (identical filesystem locations, but different protocols).
>
> >From my home system (Comcast cable-modem connection), just 5km south
> of my office on campus, I got transfer rates of 0.717MB/s and
> 0.419MB/s, about 50 to 100 times slower than the inter-state
> inter-university download.  That is just a reflection of the poor
> Internet service speeds that we have to put up with at homes in Salt
> Lake City from our only two major providers: cable and telephone DSL.
> Most local users report higher bandwidth from cable than from DSL.
>
> Google Fiber is coming to our city, but deployment has not yet reached
> my neighborhood, and I pay $90/month for my current service.
>



Zdeněk Wagner
http://ttsm.icpf.cas.cz/team/wagner.shtml
http://icebearsoft.euweb.cz



>
>
> -------------------------------------------------------------------------------
> - Nelson H. F. Beebe                    Tel: +1 801 581 5254
>     -
> - University of Utah                    FAX: +1 801 581 4148
>     -
> - Department of Mathematics, 110 LCB    Internet e-mail:
> beebe at math.utah.edu  -
> - 155 S 1400 E RM 233                       beebe at acm.org
> beebe at computer.org -
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> http://www.math.utah.edu/~beebe/ -
>
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