Messages in this thread | | | Date | Tue, 21 Oct 2003 11:59:26 +0200 | From | Mattia Dongili <> | Subject | Re: [PATCH] 3/3 Dynamic cpufreq governor and updates to ACPI P-state driver |
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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: http://www.linux.org.uk/mailman/private/cpufreq/2002-August/000865.html
Also: I think the userspace governor is a workaround to allow userspace policies.
ciao -- mattia :wq! [unhandled content-type:application/pgp-signature] | |