Re: MultiXact\SLRU buffers configuration

> 8 апр. 2021 г., в 17:22, Thomas Munro <thomas.munro@gmail.com> написал(а):
>
> Thanks!  I chickened out of committing a buffer replacement algorithm
> patch written 11 hours before the feature freeze, but I also didn't
> really want to commit the GUC patch without that.  Ahh, if only we'd
> latched onto the real problems here just a little sooner, but there is
> always PostgreSQL 15, I heard it's going to be amazing.  Moved to next
> CF.

Hi Thomas!

There's feature freeze approaching again. I see that you are working on moving SLRUs to buffer pools, but it is not
clearto which PG version it will land. And there is 100% consensus that first patch is useful and helps to prevent big
issues.Maybe let's commit 1'st step without lifting default xact_buffers limit? Or 1st patch as-is with any simple
techniquethat prevents linear search in SLRU buffers. 

Best regards, Andrey Borodin.