我对我的 iperf3 结果有疑问。
该连接通过 wireguard 连接进行，其中服务器位于 DE，客户端位于 IL。
已从服务器 (DE) 进行测试
iperf3 -c 10.10.10.2 -p 20003
Connecting to host 10.10.10.2, port 20003
[ 5] local 10.10.10.1 port 32840 connected to 10.10.10.2 port 20003
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 8.71 MBytes 73.1 Mbits/sec 46 395 KBytes
[ 5] 1.00-2.00 sec 6.25 MBytes 52.4 Mbits/sec 0 443 KBytes
[ 5] 2.00-3.00 sec 5.00 MBytes 41.9 Mbits/sec 3 464 KBytes
[ 5] 3.00-4.00 sec 3.75 MBytes 31.5 Mbits/sec 3 140 KBytes
[ 5] 4.00-5.00 sec 1.25 MBytes 10.5 Mbits/sec 0 203 KBytes
[ 5] 5.00-6.00 sec 2.50 MBytes 21.0 Mbits/sec 1 134 KBytes
[ 5] 6.00-7.00 sec 2.50 MBytes 21.0 Mbits/sec 0 197 KBytes
[ 5] 7.00-8.00 sec 2.50 MBytes 21.0 Mbits/sec 0 252 KBytes
[ 5] 8.00-9.00 sec 3.75 MBytes 31.5 Mbits/sec 0 296 KBytes
[ 5] 9.00-10.00 sec 3.75 MBytes 31.5 Mbits/sec 0 338 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 40.0 MBytes 33.5 Mbits/sec 53 sender
[ 5] 0.00-10.08 sec 36.2 MBytes 30.1 Mbits/sec receiver
撤销：
iperf3 -c 10.10.10.2 -p 20003 -R
Connecting to host 10.10.10.2, port 20003
Reverse mode, remote host 10.10.10.2 is sending
[ 5] local 10.10.10.1 port 21844 connected to 10.10.10.2 port 20003
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 13.6 MBytes 114 Mbits/sec
[ 5] 1.00-2.00 sec 27.1 MBytes 227 Mbits/sec
[ 5] 2.00-3.00 sec 29.6 MBytes 248 Mbits/sec
[ 5] 3.00-4.00 sec 29.7 MBytes 249 Mbits/sec
[ 5] 4.00-5.00 sec 30.4 MBytes 255 Mbits/sec
[ 5] 5.00-6.00 sec 30.4 MBytes 255 Mbits/sec
[ 5] 6.00-7.00 sec 30.2 MBytes 254 Mbits/sec
[ 5] 7.00-8.00 sec 30.8 MBytes 258 Mbits/sec
[ 5] 8.00-9.00 sec 31.1 MBytes 261 Mbits/sec
[ 5] 9.00-10.00 sec 31.8 MBytes 267 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.08 sec 292 MBytes 243 Mbits/sec 104 sender
[ 5] 0.00-10.00 sec 285 MBytes 239 Mbits/sec receiver
两个连接上的双向连接速度应为 300+Mbps。
看起来客户端（rpi4）上传到服务器的速度为 243 Mbps，但下载速度只有 40Mbps，第一秒的速度似乎有 73Mbps，然后就下降了。
在 DE 服务器上进行速度测试
speedtest
Retrieving speedtest.net configuration...
Testing from 1&1 Internet AG (212.227.xxx.xxx)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by FSIT AG (Dietikon) [440.71 km]: 17.857 ms
Testing download speed................................................................................
Download: 362.51 Mbit/s
Testing upload speed......................................................................................................
Upload: 340.56 Mbit/s
在伊利诺伊州的客户端上进行速度测试
speedtest
Retrieving speedtest.net configuration...
Testing from Partner Communications (192.116.xxx.xxx)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Partner Communications (Tel Aviv) [244.48 km]: 13.526 ms
Testing download speed................................................................................
Download: 292.78 Mbit/s
Testing upload speed......................................................................................................
Upload: 510.09 Mbit/s
服务器和客户端都运行 Debian 11。
可能是什么问题？