Comment 20 for bug 582157
Revision history for this message
| John A Meinel (jameinel) wrote Re: [Bug 582157] Re: pull from launchpad is slow | #20 |
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Martin Pool wrote:
> @John the most obvious difference between your machine and Vincent's is
> the different round trip time, which connects to the TCP windowing
> restriction discussed above. What ping time do you see to chinstrap
> from those two machines?
>
well, and his peak bandwidth :).
My rtt is about 150ms according to ping -c 100. I'm sure it varies based
on time of day.
I just tested it on Vincent's machine, and got a startling 120ms time.
Extra surprising because I could swear that Vincent had 20ms time. Which
makes me wonder if vila was playing with 'tc' and left a 100ms slow jump
in his network trace.
It is reproducible, though. And I still get 1.5MB to Vincent's machine,
and have difficulty hitting 300kB/s on mine.
The URL I'm testing is:
http://
Which is the 30MB pack file in the bzr repository. (The only way for me
to get close to maxing out the connection is to do multiple concurrent
downloads.)
John
=:->
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