On Mon, Oct 28, 2013 at 3:32 PM, Andres Freund <and...@2ndquadrant.com> wrote: >> I wonder whether it'd be safe to assume that any machine where >> pointers are 8 bytes has 8-byte atomic loads and stores. I bet there >> is a counterexample somewhere. :-( > > Sparc64 :(. > > Btw, could you quickly give some keywords what you're thinking about > making lockless? > I mainly am thinking about lwlocks and buffer pins so far. Nothing > really ambitious.
Well, I was going to use it for some code I'm working on for parallelism, but I just tested the overhead of a spinlock, and it was zero, possibly negative. So I may not have an immediate application. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
