Commit5434e46

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Add note to the shared memory sizing table about needing to use page count in

shared_buffers and wal_buffers, not size in bytes. Per discussion.

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+11

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Lines changed: 11 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-<!-- $PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.422 2008/11/20 11:48:26 mha Exp $ -->`
	`1`	`+<!-- $PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.423 2008/12/16 19:30:43 alvherre Exp $ -->`
`2`	`2`
`3`	`3`	`<chapter Id="runtime">`
`4`	`4`	`<title>Operating System Environment</title>`
`@@ -1124,6 +1124,16 @@ set semsys:seminfo_semmsl=32`
`1124`	`1124`	`</tbody>`
`1125`	`1125`	`</tgroup>`
`1126`	`1126`	`</table>`
	`1127`	`+`
	`1128`	`+ <note>`
	`1129`	`+ <para>`
	`1130`	`+ The multipliers for <varname>shared_buffers</> and`
	`1131`	`+ <varname>wal_buffers</> should be the number of buffers, not the`
	`1132`	`+ amount in bytes. To find out the number of shared or wal buffers, divide`
	`1133`	`+ the amount in bytes by <xref linkend="guc-block-size"> and`
	`1134`	`+ <xref linkend="guc-wal-block-size">, respectively.`
	`1135`	`+ </para>`
	`1136`	`+ </note>`
`1127`	`1137`	`</sect2>`
`1128`	`1138`
`1129`	`1139`

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