Commit fd8e6b
2025-06-10 17:59:07 Viraj Alankar: -/-| /dev/null .. improving video streaming over wan.md | |
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| + | # Improving video streaming over WAN |
| + | |
| + | [BBRv3](https://github.com/google/bbr/tree/v3) vastly improves reliability of video streaming over a high latency link. |
| + | |
| + | [CachyOS](https://cachyos.org/) is the only Linux distro that has this builtin to its kernel. It must be [enabled](https://github.com/CachyOS/linux-cachyos/issues/439) manually. |
| + | |
| + | ## iperf3 examples |
| + | |
| + | ### Without BBRv3 (default Debian 12 kernel) |
| + | |
| + | ``` |
| + | [ ID] Interval Transfer Bitrate |
| + | [ 5] 0.00-1.00 sec 1.15 MBytes 9.67 Mbits/sec |
| + | [ 5] 1.00-2.00 sec 2.52 MBytes 21.1 Mbits/sec |
| + | [ 5] 2.00-3.00 sec 1.78 MBytes 15.0 Mbits/sec |
| + | [ 5] 3.00-4.00 sec 2.30 MBytes 19.3 Mbits/sec |
| + | [ 5] 4.00-5.00 sec 1.24 MBytes 10.4 Mbits/sec |
| + | [ 5] 5.00-6.00 sec 1.24 MBytes 10.4 Mbits/sec |
| + | [ 5] 6.00-7.00 sec 1.55 MBytes 13.0 Mbits/sec |
| + | [ 5] 7.00-8.00 sec 1.36 MBytes 11.4 Mbits/sec |
| + | [ 5] 8.00-9.00 sec 1.37 MBytes 11.5 Mbits/sec |
| + | [ 5] 9.00-10.00 sec 1.58 MBytes 13.3 Mbits/sec |
| + | - - - - - - - - - - - - - - - - - - - - - - - - - |
| + | [ ID] Interval Transfer Bitrate Retr |
| + | [ 5] 0.00-10.17 sec 19.1 MBytes 15.7 Mbits/sec 288 sender |
| + | [ 5] 0.00-10.00 sec 16.1 MBytes 13.5 Mbits/sec receiver |
| + | ``` |
| + | |
| + | ### With BBRv3 |
| + | |
| + | ``` |
| + | me@client:~$ iperf3 -c my.server.org -R |
| + | Reverse mode, remote host my.server.org is sending |
| + | [ ID] Interval Transfer Bitrate |
| + | [ 5] 0.00-1.00 sec 764 KBytes 6.26 Mbits/sec |
| + | [ 5] 1.00-2.00 sec 14.3 MBytes 120 Mbits/sec |
| + | [ 5] 2.00-3.00 sec 13.7 MBytes 115 Mbits/sec |
| + | [ 5] 3.00-4.00 sec 10.1 MBytes 85.0 Mbits/sec |
| + | [ 5] 4.00-5.00 sec 12.2 MBytes 103 Mbits/sec |
| + | [ 5] 5.00-6.00 sec 11.1 MBytes 93.0 Mbits/sec |
| + | [ 5] 6.00-7.00 sec 12.4 MBytes 104 Mbits/sec |
| + | [ 5] 7.00-8.00 sec 11.7 MBytes 98.1 Mbits/sec |
| + | [ 5] 8.00-9.00 sec 13.6 MBytes 114 Mbits/sec |
| + | [ 5] 9.00-10.00 sec 13.7 MBytes 115 Mbits/sec |
| + | - - - - - - - - - - - - - - - - - - - - - - - - - |
| + | [ ID] Interval Transfer Bitrate Retr |
| + | [ 5] 0.00-10.16 sec 117 MBytes 96.3 Mbits/sec 900 sender |
| + | [ 5] 0.00-10.00 sec 114 MBytes 95.3 Mbits/sec receiver |
| + | ``` |