s (Robert
        Haas)
       </P
></LI
><LI
><P
>        Reduce the overhead of serializable isolation level locks (Dan
        Ports)
       </P
></LI
><LI
><P
>        Improve PowerPC and Itanium spinlock performance (Manabu Ori,
        Robert Haas, Tom Lane)
       </P
></LI
><LI
><P
>        Reduce overhead for shared invalidation cache messages (Robert
        Haas)
       </P
></LI
><LI
><P
>        Move the frequently accessed members of the <TT
CLASS="STRUCTNAME"
>PGPROC</TT
>
        shared memo