On Thu, Feb 26, 2015 at 9:34 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Andres Freund <andres@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
