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...evious commit saw improvement with the benchmark using 64k packets, that's the value picked for now. Signed-off-by: Eric Blake <eblake@redhat.com> --- server/crypto.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/server/crypto.c b/server/crypto.c index 3f3d96b..356f04f 100644 --- a/server/crypto.c +++ b/server/crypto.c @@ -345,6 +345,12 @@ crypto_recv (struct connection *conn, void *vbuf, size_t len) return 1; } +/* If this send()'s length is so large that it is going to require + * multiple TCP segments anyway, there's no need to try and me...

...+ if (flags & SEND_MORE) + f |= MSG_MORE; +#endif while (len > 0) { - r = send (sock, buf, len, 0); + r = send (sock, buf, len, f); if (r == -1) { if (errno == EINTR || errno == EAGAIN) continue; diff --git a/server/crypto.c b/server/crypto.c index 3f87944..3f3d96b 100644 --- a/server/crypto.c +++ b/server/crypto.c @@ -357,6 +357,9 @@ crypto_send (struct connection *conn, const void *vbuf, size_t len, int flags) assert (session != NULL); + if (flags & SEND_MORE) + gnutls_record_cork (session); + while (len > 0) { r = gnutls_record_send...

This time around, the numbers are indeed looking better than in v1; and I like the interface better. Eric Blake (2): server: Prefer send() over write() server: Group related transmission send()s server/internal.h | 7 +++- server/connections.c | 51 +++++++++++++++++++++++++--- server/crypto.c | 11 ++++--