Gregory Stark <stark@enterprisedb.com> writes:
> When we checkpoint we write out all dirty buffers. But ISTM we don't really
> need to write out buffers which are dirty but which have an LSN older than the
> previous checkpoint. Those represent buffers which were dirtied by a
> non-wal-logged modification, ie, hint bit setting. The other non-wal-logged
> operations will sync the buffer themselves when they're done.

In the current dispensation we don't really care how long a checkpoint
takes, so I don't see the advantage to be gained.

regards, tom lane

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