3 ms·
The sendmmsg and recvmmg system calls can also boost performance significantly, especially when GSO is enabled.
by tomohawk 3y ago
The sendmmsg and recvmmg system calls can also boost performance significantly, especially when GSO is enabled.
- atyvr 3y agoInteresting, need to check that out. Is this available in the Go Standard library?
- tomohawk 3y agoIt's available on linux from the x/sys/unix package. You have to use the syscall.Syscall6
- atyvr 3y agoThanks for the suggestion. I added this method using Go's packetConn, and its WriteBatch() function, which appears to be using sendmmsg() https://github.com/atoonk/go-pktgen/blob/main/pktgen/packetConn.go https://github.com/atoonk/go-pktgen/blob/main/pktgen/packetC... I want to try and add it to the af_inet_syscall.go method, but seems like a bit more work than I have time for now. I'm surprised it's already quite fast, even without it. FYI Latest results in README (pkt_conn is the new one) https://github.com/atoonk/go-pktgen/blob/main/README.md https://github.com/atoonk/go-pktgen/blob/main/README.md