On Mon, Sep 2, 2024 at 4:58 PM Heikki Linnakangas <hlinnaka@xxxxxx> wrote: > Do you have any non-default settings? "select name, > current_setting(name), source from pg_settings where setting <> > boot_val;" would show that. What about page checksums? One simple explanation is that we're writing extra FPIs to set hint bits. But that explanation only works if you assume that page-level checksums are in use (or that wal_log_hints is turned on). -- Peter Geoghegan