Very low transfer speed

[megapro17]

We both have a stable 100 Mbps internet but pcp sends it with about 2.3 MB/s. Does it use multiple threads? I'm using v0.4.0-rc1 Windows.

[dennis-tra]

Hi @megapro17, it could very well be the case that your connection got relayed by an intermediate peer. This happens if pcp was not able to hole punch a connection through either of your routers. (this is just a guess)

If that's the case, there a many improvements on the way that address this problem:

libp2p/go-libp2p#1039

Indeed, I just learned that it got merged two months ago. pcp would definitely benefit from that improvement.

I'm also thinking to indicate in the command line if the connection got relayed.

[megapro17]

Thanks for looking. I guess it was because my friend had a shared ip from isp, mine is dedicated. I tried today with both dedicated and it hit 10 MB/s speed, but not for a long time, dropped to about 5 MB/s. I didn't realised it is so difficult to send files, torrents are just working with any connection with maximum speed.

[megapro17]

can i have a nightly build to test new branch??