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    SubjectRe: [PATCH] 3/3 Dynamic cpufreq governor and updates to ACPI P-state driver
    On Tue, Oct 21, 2003 at 10:38:53AM +0200, Arjan van de Ven wrote:
    > On Tue, 2003-10-21 at 04:56, Pallipadi, Venkatesh wrote:
    > > Patch 3/3: New dynamic cpufreq driver (called
    > > DemandBasedSwitch driver), which periodically monitors CPU
    > > usage and changes the CPU frequency based on the demand.
    > it's all nice code and such, but I still wonder why this can't be done
    > by a userland policy daemon. The 2.6 kernel has the infrastructure to
    > give very detailed information to userspace (eg top etc) about idle
    > percentages...... I didn't see anything in this driver that couldn't be
    > done from userspace.

    I remember Linus forcing a kernel only policy management:

    Also: I think the userspace governor is a workaround to allow userspace

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