传输速度异常/Transmission speed anomaly

[ffii4455]

Client：WIN11 Pro 24H2
udp2raw version：git version:e5ecd33ec4 build date:Feb 7 2023 09:20:57 args：--cipher-mode none --auth-mode none -a --raw-mode udp
iperf version：2.2.1 args：-u -p 39925 -b 50M -t 1000 -i 1 -l 1280

直接使用iperf向服务器进行UDP测速，速度正常，可以达到30M，基本达到带宽上限。
Directly use iperf to measure UDP speed to the server, the speed is normal, can reach 30M, basically reach the bandwidth upper limit.

但是使用udp2raw后，同样的条件测试只有10M左右，令我意外的是，从Windows任务管理器看到，网卡的发送也只有10M左右，但实际上iperf的发送速率是50M。直接向服务器测速时，iperf发送50M，网卡发送也是50M，是相等的。
However, after using udp2raw, the same condition test is only about 10M, to my surprise, from Windows Task Manager, the network card send speed is only about 10M, but in fact the iperf send rate is 50M. When the speed test directly to the server, the iperf sends 50M, and the NIC sends 50M.

测速情况在家里的网络和办公室的网络都是一样的。
The speed test result is the same on the home network as on the office network

问题出在哪啊？不知道下一步该怎么查了。
What's the problem? I don't know what to do next.

[AESisverystrong]

I can only say that the Windows version of UDP2RAW seems to have performance issues with packet sending. It engages in blocking lazy behavior and fails to fully utilize your CPU performance, so packet sending should be done using the Linux version.
我只能说Windows版本的UDP2RAW的发包似乎存在性能问题，它会阻塞性偷懒，不会充分利用你的CPU性能，所以发包应该使用Linux版本。
It essentially appears to be a performance issue with npcap.
本质上似乎是npcap的性能问题。