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    SubjectRe: PATCH 2.3.26: kmalloc GFP_ZERO
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    >>>>> "yodaiken" == yodaiken  <yodaiken@chelm.cs.nmt.edu> writes:

    yodaiken> On Tue, Nov 09, 1999 at 05:17:30PM +0100, Jes Sorensen
    yodaiken> wrote:
    yodaiken> PPC turns cache off and zeros during idle task. This is a
    yodaiken> major performance win. We measured.
    >> And Jakub just told us it wasn't a win under the same conditions
    >> on the Sparc64.

    yodaiken> It depends on how you do it, on the architecture, and on
    yodaiken> what you measure. Lmbench is an invaluable hint, but it is
    yodaiken> not definitive. If kernel compiles speed up by 20%, you
    yodaiken> knpw something.

    Now DaveM already posted good reason why lmbench was a bad bench for
    this ... now did you in fact see a 20% speedup on kernel compiles? I
    for some reason strongly doubt that.

    Jes

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