On Wed, Apr 08, 2026 at 07:04:58PM -0400, Andres Freund wrote: > In [1] I looked at pgstat memory usage after sort of a complaint by Nathan. > The conversion of "PgStat Shared Ref" to slab seems like an improvement we > obviously should make [2]. > > [...] > > But I think for this use case we actually have a more fitting memory context > type for this workload, i.e. GenerationContext. With that the size after the > same vacuum is
Nice. > [2] It's a big enough saving that I'm kinda wondering about whether we should > try to sneak it into 19. I don't know whether it's appropriate to try to sneak this into v19 at this point, but it at least seems like a "moment v20 opens for development" thing. Should we double check there's no meaningful performance differences? Otherwise, this seems like an easy win. -- nathan
