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    SubjectRe: Rain & Waterfall
    On Sun, 28 Jun 1998 linker@nightshade.ml.org wrote:

    > Non-smp linux has done this for a very long time. It works.

    In fact, Linux supported this feature before processors
    supporting the feature were in widespread use.
    There's a test made during the Linux bootup process, and
    hlt() is called only when supported by the machine.

    > On Sun, 28 Jun 1998, Jordan Mendelson wrote:
    >
    > > I was browsing some web pages on CPU cooling and I found a reference to two
    > > programs called rain and waterfall. They claim to lower your CPU's temp by
    > > up to 30 C and in some cases, extend the power on a laptops battery by up to
    > > 30 minutes.
    > >
    > > The FAQ says they do this by sending the HLT command to idle parts of the
    > > CPU, thereby putting them into suspend mode causing them to stop generating
    > > heat.
    > >
    > > Has anyone thought of implementing such a thing in the linux kernel? Their
    > > webpage is:
    > >
    > > http://cpu.simplenet.com/leading_wintech/
    > >
    > >
    > > Jordan
    > >
    > > --
    > > Jordan Mendelson : http://jordy.wserv.com
    > > Web Services, Inc. : http://www.wserv.com
    > >
    > >
    > >
    > > -
    > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    > > the body of a message to majordomo@vger.rutgers.edu
    > >
    >
    >
    > -
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    > the body of a message to majordomo@vger.rutgers.edu
    >

    Rik.
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