[darcs-users] No way to reenable Nagle

Juliusz Chroboczek jch at pps.jussieu.fr
Thu Apr 23 19:45:46 UTC 2009


Package: openssh-server
Version: 1:5.1p1-5

Both the ssh client and server disable Nagle's protocol on their
sockets.  There appears to be no way to reenable it (grep for
set_nodelay in the source).

For some protocols tunneled over ssh, it would be helpful if it were
possible to reenable Nagle.  This issue surfaced with the Darcs VCS,
which typically uses ssh to communicate with the repository.

Controlling Nagle should be done on the client, since only the client
knows what the socket will be used for.  However, it should control both
the client and server socket, since the server socket usually transmits
the bulk of the data.

                                        Juliusz Chroboczek
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