> On May 16, 2025, at 1:37 PM, Laurenz Albe <laurenz.albe@xxxxxxxxxxx> wrote: > > Sometimes, a backend writes a block to disk itself. This might happen if a lot > of cache pressure, but usually it happens when the table is extended with new > blocks. Ah, that's the piece I was missing! Do the written blocks get counted as dirty first, or only as written?