On 22 June 2017 at 08:29, Andres Freund <and...@anarazel.de> wrote: > I.e. we're doing tiny write send() syscalls (they should be coalesced)
That's likely worth doing, but can probably wait for a separate patch. The kernel will usually do some packet aggregation unless we use TCP_NODELAY (which we don't and shouldn't), and the syscall overhead is IMO not worth worrying about just yet. > and then completely unnecessarily call recv() over and over again > without polling. To me it looks very much like we're just doing either > exactly once per command... Yeah, that looks suspect. -- Craig Ringer http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
