August 12, 20241 yr Hello folks, I could use some assistance, as I am lost as to where to go from here. I am quite some distance from my unraid server. I have a site-to-site VPN configured so I can access the unraid server from my LAN with ease. With the site-to-site VPN, using iperf3, I'm able to do about 150 Mbps transfer in either direction. Accepted connection from 192.168.3.215, port 62663 [ 5] local 192.168.1.32 port 5201 connected to 192.168.3.215 port 62664 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 716 KBytes 5.86 Mbits/sec 0 146 KBytes [ 5] 1.00-2.00 sec 12.4 MBytes 104 Mbits/sec 0 2.83 MBytes [ 5] 2.00-3.00 sec 17.5 MBytes 147 Mbits/sec 0 11.6 MBytes [ 5] 3.00-4.00 sec 17.5 MBytes 147 Mbits/sec 0 8.33 MBytes [ 5] 4.00-5.00 sec 17.5 MBytes 147 Mbits/sec 0 8.33 MBytes [ 5] 5.00-6.00 sec 18.8 MBytes 157 Mbits/sec 0 8.23 MBytes [ 5] 6.00-7.00 sec 17.5 MBytes 147 Mbits/sec 0 8.33 MBytes [ 5] 7.00-8.00 sec 18.8 MBytes 157 Mbits/sec 0 8.30 MBytes [ 5] 8.00-9.00 sec 17.5 MBytes 147 Mbits/sec 0 8.30 MBytes [ 5] 9.00-10.00 sec 17.5 MBytes 147 Mbits/sec 0 8.34 MBytes [ 5] 10.00-10.22 sec 3.75 MBytes 142 Mbits/sec 0 8.34 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.22 sec 159 MBytes 131 Mbits/sec 0 sender When trying to transfer files via samba, rsync over smb, or rsync using SSH, or scp; at best I get transfer speeds of 90 Mbps. I understand iperf3 will perform faster due to less overhead, but this still seems like a significant penalty. Unfortunately, that transfer rate is just slow enough that I can't stream some of the higher bitrate content on my server. Any suggestions on how to debug where the bandwidth is being lost would be appreciated!
August 12, 20241 yr Author 32 minutes ago, Michael_P said: Not just overhead, latency is a transfer speed killer There is ...significant geographic distance. Ping duration is 218 ms (wired on both ends). I wouldn't have thought that to be a significant barrier to transfer speeds...
August 12, 20241 yr Community Expert 1 minute ago, ogi said: I wouldn't have thought that to be a significant barrier to transfer speeds... SMB doesn't like latency, at all. 90Mbps isn't bad considering
August 13, 20241 yr Author 17 hours ago, Michael_P said: SMB doesn't like latency, at all. 90Mbps isn't bad considering So while file transfers are going fine, mpv streams are a good deal slower, best I can do via mpv stream is ~60 Mbps, which isn't quite good enough to keep up with higher quality media playback. I'm sturgling to think about what options I could change on the unraid samba side to support (slightly) faster streaming via mpv.
August 13, 20241 yr Community Expert 1 hour ago, ogi said: I could change on the unraid samba side If you're happy enough with the file transfers, any tweaking would need to be done in whatever streaming software you're using (ie: using buffers/caching).
August 13, 20241 yr Author 23 minutes ago, Michael_P said: If you're happy enough with the file transfers, any tweaking would need to be done in whatever streaming software you're using (ie: using buffers/caching). yeah mpv doesn't give a lot of options here; I can specify a large cache but the rate of caching is just a wee bit slower than the rate of playback (and significantly slower than a file transfer). Unfortunately I'm not seeing options in mpv to tweak anything in this regard
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