It looks that my ISP started to traffic shape the connection. It works like
this:
- Using --limit-rate I specify maximum upload speed 75K (from 95K available).
This is the only application accessing Internet.
- For approximately 10 minutes the wget works just fine and pulls at 75K/s.
After that the rate drops to 30K/s. The drop is fast, looks like lights went
off. I did not check in the sniffer what is going on, but I suspect that I will
see dropped packets and TCP retransmissions.
- If I restart wget for the same file it returns to download at 70K/s for 10
minutes more.
This is not an issue with the server. I tried very fast servers including
pulling Eclipse from Amazon cloud, rapidshare etc. The servers which usually
saturated my downstream.
I am looking for two possible approaches to the problem
- Is there a patch which allows to force retry if the rate drops below some
preset limit ? Any tips how such patch could be implemented (i probably could
the work) ?
- Replace ISP (so far I can not make them to fix the issue)
Thank you, Arkady
