On Thu, Feb 26, 2015 at 9:34 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Andres Freund <and...@2ndquadrant.com> writes: >> It's a bit sad to push AllocSetContextData onto four cachelines from the >> current three... That stuff is hot. But I don't really see a way around >> it right now. And it seems like it'd give us more amunition to improve >> things than the small loss of speed it implies. > > Meh. I doubt it would make any difference, especially seeing that the > struct isn't going to be aligned on any special boundary.
It might not make much difference, but I think avoiding unnecessary padding space inside frequently-used data structures is probably a smart idea. -- 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
