<listitem>
<para>
Sets the amount of memory the database server uses for shared
- memory buffers. The default is typically 32 megabytes
- (<literal>32MB</>), but might be less if your kernel settings will
+ memory buffers. The default is typically 128 megabytes
+ (<literal>128MB</>), but might be less if your kernel settings will
not support it (as determined during <application>initdb</>).
This setting must be at least 128 kilobytes. (Non-default
values of <symbol>BLCKSZ</symbol> change the minimum.) However,