> <a href="#GUC-SHARED-BUFFERS" class="id_link">#</a></dt><dd><p>
        Sets the amount of memory the database server uses for shared
        memory buffers.  The default is typically 128 megabytes
        (<code class="literal">128MB</code>), but might be less if your kernel settings will
        not support it (as determined during <span class="application">initdb</span>).
        This setting must be at least 128 kilobytes.  However,
        settings significantly higher than the minimum are usually ne