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Slightly RFC, as I need more time to investigate why Unix sockets appeared to degrade with this patch. But as TCP sockets (over loopback to localhost) and TLS sessions (regardless of underlying Unix or TCP) both showed improvements, this looks like a worthwhile series. Eric Blake (2): server: Add support for corking server: Cork around grouped transmission send()s server/internal.h | 3

...(__nonnull__ (1))); @@ -180,6 +182,7 @@ struct connection { int sockin, sockout; connection_recv_function recv; connection_send_function send; + connection_cork_function cork; connection_close_function close; }; diff --git a/server/connections.c b/server/connections.c index b7d9a6a..9b0b75c 100644 --- a/server/connections.c +++ b/server/connections.c @@ -38,6 +38,8 @@ #include <inttypes.h> #include <string.h> #include <unistd.h> +#include <netinet/ip.h> +#include <netinet/tcp.h> #include "internal.h" @@ -51,6 +53,7 @@ static void free_conn...

...hy Unix sockets degraded... I also probably out to repeat my timings more than a single run... --- server/connections.c | 2 ++ server/protocol.c | 52 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/server/connections.c b/server/connections.c index 9b0b75c..8c92dc5 100644 --- a/server/connections.c +++ b/server/connections.c @@ -356,6 +356,7 @@ raw_send (struct connection *conn, const void *vbuf, size_t len) return 0; } +#ifdef TCP_CORK /* Change the cork status to batch a group of send calls, and either succeed * completely (returns 0) or fa...