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Author vstinner
Recipients njs, pitrou, vstinner, yselivanov
Date 2018-07-18.10:16:58
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
> write.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 0)

Instead of that, I also tried:

read.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
write.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)

But I'm able to reproduce the bug with TCP_NODELAY=1 on the write end. (The option should have no impact on the read end, but I added it anyway, just in case, I still reproduce the bug.)

MSDN documentation for TCP_NODELAY:

"Disables the Nagle algorithm for send coalescing.This socket option is included for backward compatibility with Windows Sockets 1.1 "
Date User Action Args
2018-07-18 10:16:58vstinnersetrecipients: + vstinner, pitrou, njs, yselivanov
2018-07-18 10:16:58vstinnersetmessageid: <>
2018-07-18 10:16:58vstinnerlinkissue34130 messages
2018-07-18 10:16:58vstinnercreate