UDD @ Portland

[John Arbash Meinel]

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Robert Collins wrote:
> James Westby and I had some time together in Portland to talk about UDD
> stuff.
> 
...

>  - make bzr saturate the network more effectively (the 14M above didn't
> download at wire speed as far as we could tell).
>  I haven't made these into bugs as yet, pending some feedback from you!
> 

As near as I can tell, this has to do with Launchpad's connection to the
 US. I can't get wire-speed downloads just doing 'wget
http://bazaar.launchpad.net/.../packs/BIGPACK.pack'.

Mine doesn't look particularly flat (see attached). (I ran it under
Windows and Linux. It peaks >300KB/s, but averages 218KB/s and 251KB/s.)

Also note that the Python.org guys complained of the same issue when we
were trying to get them to switch. bzr+ssh *and* http both seem to be
affected.

I also had Vincent run the same 'wget' on his connection, which shows
that LP has the bandwidth (peaks at 2MB/s which is >> my 300KB/s), but
something is wrong with the pipe.

I also tested downloading a game from Steam, which perfectly saturates
my bandwidth. (YouTube sometimes does, but not always.)

Anyway, we've tried to look at this a bit before, but I'm a bit stumped
as to where to go from here. I can collect wireshark results, etc. At
the moment, I've pretty much determined it isn't *bzr*. Which is when I
stopped looking too closely.

John
=:->

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