Joe Conway <mail@joeconway.com> writes:
> The attached is the supporting documentation for the read-only GUC
> variable changes. Comments?
Most of this paragraph strikes me as noise:
> + Shows the size of a disk block. It is determined by the value
> + of <literal>BLCKSZ</> when building the server. The default
> + value is 8192 bytes. Each data file (heap or index) is divided
> + into disk blocks which may be thought of as the unit of I/O.
> + A <productname>PostgreSQL</productname> buffer contains exactly
> + one disk block. A <productname>PostgreSQL</productname> disk page
> + is an abstraction layered on top of a disk block. Specifically,
> + while a disk block can be unformatted, a disk page is always a
> + formatted page. The <varname>shared_buffers</varname> setting is
> + influenced by <varname>block_size</varname>. See
> + <xref linkend="runtime-config-resource"> for information.
I think you could drop the middle four sentences ("Each ... formatted page")
without losing much.
Otherwise it looks fine ...
regards, tom lane
