st always 4096 bytes except in unusual
        kernel configurations with <SPAN
CLASS="QUOTE"
>"huge pages"</SPAN
>
        (use <TT
CLASS="LITERAL"
>getconf PAGE_SIZE</TT
> to verify).
       </P
><P
>        The shared memory size settings can be changed via the
        <TT
CLASS="COMMAND"
>sysctl</TT
> interface.  For example, to allow 16 GB:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>sysctl -w kernel.shmmax=17179869184</KBD
>
<SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLA