On Mon, Feb 15, 2021 at 11:56 PM Andrey Borodin <x4...@yandex-team.ru> wrote: > > 16 янв. 2021 г., в 03:07, Alvaro Herrera <alvhe...@alvh.no-ip.org> > > написал(а): > > Andrey Borodin already has a patch to change the behavior for > > multixact, which is something we should perhaps also do. I now notice > > that they're also reporting a bug in that thread ... sigh > > I've tried in that thread [0] to do more intelligent optimisation than just > increase number of buffers. > Though, in fact bigger memory had dramatically better effect that lock tricks. > > Maybe let's make all SLRUs buffer sizes configurable?
+1 I got interested in the SLRU sizing problem (the lock trick and CV stuff sounds interesting too, but I didn't have time to review that in this cycle). The main problem I'm aware of with it is the linear search, so I tried to fix that. See Andrey's thread for details.
