Benjamin Krajmalnik wrote:
So, if I understand correctly, I should strive for a relative increase in buffers_clean to buffers_backend
Right. Buffers written by a backend are the least efficient way to get data out of the buffer cache, because the client running into that is stuck waiting for a write call before it can use the resuling free block. You want to avoid those in favor of checkpoint and background-writer cleaner writes instead.
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