M
CLASS="ACRONYM"
>WAL</ACRONYM
>
        writes.
       </P
></LI
><LI
><P
>        Allow the bgwriter, walwriter, checkpointer, statistics collector,
        log collector, and archiver background processes to sleep more
        efficiently during periods of inactivity (Peter Geoghegan, Tom Lane)
       </P
><P
>        This series of changes reduces the frequency of process wake-ups when
        there is nothing to do, dramatically reducing power consumption on
        idle servers.
       </P
></LI
></U