On Wed, Nov 16, 2022 at 2:52 PM Andres Freund <and...@anarazel.de> wrote: > I don't think we'd want every buffer write or whatnot go through the > changecount mechanism, on some non-x86 platforms that could be noticable. But > if we didn't stage the stats updates locally I think we could make most of the > stats changes without that overhead. For updates that just increment a single > counter there's simply no benefit in the changecount mechanism afaict.
You might be right, but I'm not sure whether it's worth stressing about. The progress reporting mechanism uses the st_changecount mechanism, too, and as far as I know nobody's complained about that having too much overhead. Maybe they have, though, and I've just missed it. -- Robert Haas EDB: http://www.enterprisedb.com
