David Bar-On

I am willing to help with this issue, but I am not sure what is the scope of the required solution. Is it only creating a man page file similar...

Submitted PR #1690 with support for the requested features (see the PR for details).

Enhanced functionality for this issue now implemented by PRs #1717 (SKIP-RX-COPY) and and #1720 (zerocopy using MSG_ZEROCOPY/SO_ZEROCOPY). PR #1690 with the initial suggestions for the implementations is now closed.

Few comments/questions: 1. I assume that all the information given is related to the client. Can you also send the client command used ("iperf3 -c ....")? 2. Did you try...

Some further clarifications will help: 1. How is issuing the error "iperf3: error - unable to receive control message: Connection reset by peer"? The Server? Client? Both? In any case,...

> What we have observed is first couple of seconds, say for a minute the connection reset comes. But after trying few minute later it works. Do you mean few...

I guess that the problem is related to the Cwnd size of the second port which is 8.74 KBytes v.s. 1.14 MBytes for the first one. Cwnd is the TCP...

> We fail to achieve the 75% of the bandwidth it always falls under 40%. With iperf3 of high speed network, the limit may be client and/or server machine CPU....

> Is it possible to use iperf3 through socks5? Does it support options such as --socks5? Did you try using socks5 per @bmah888 suggested approach is [this comment](https://github.com/esnet/iperf/issues/1095#issuecomment-747622905)? Also, you...

Submitted a PR #1676 with TCP support for SOCKS5 Proxy, based on @mister-goo [code](https://github.com/esnet/iperf/issues/1095#issuecomment-1146514695).