Re: git: powerd - Initial load monitor and cpu frequency adjustment daemon

["Johannes Hofmann" <johannes.Hofmann@xxxxxx>]

"Sepherosa Ziehau" <sepherosa@gmail.com> wrote:
> Heh, finally the p-state stuffs are used :D

sysutils/estd also uses your ACPI work.
I have added support for ACPI P-states some time ago.
Cheers,
Johannes

> Since the freq of a cpu domain could be changed independent of the
> other cpu domains, we could calculate the avg cpu load within one cpu
> domain, instead of calculating the avg load of all cpus, and only
> change the freq of that specific cpu domain.
>
> Best Regards,
> sephe
>
> On Tue, Jun 29, 2010 at 5:38 AM, Matthew Dillon
> <dillon@crater.dragonflybsd.org> wrote:
> > commit cc537f99eefe3e1190b0d2388ead346180e9ea24
> > Author: Matthew Dillon <dillon@apollo.backplane.com>
> > Date:   Mon Jun 28 14:36:24 2010 -0700
> >
> >    powerd - Initial load monitor and cpu frequency adjustment daemon
> >
> >    This daemon uses the hw.acpi.cpu.px_dom* sysctls to adjust the fre
quency
> >    for all cpus based on the system cpu load.
> >
> >    For this initial implementation the daemon simply sets cpus to the
maximum
> >    frequency when the 1-second load exceeds 25% of one cpu and sets t
he cpus
> >    to the minimum frequency when the 10-second load drops below 12%.
> >
> > Summary of changes:
> >  usr.sbin/powerd/Makefile |   10 ++
> >  usr.sbin/powerd/powerd.8 |   36 +++++++
> >  usr.sbin/powerd/powerd.c |  255 ++++++++++++++++++++++++++++++++++++
++++++++++
> >  3 files changed, 301 insertions(+), 0 deletions(-)
> >  create mode 100644 usr.sbin/powerd/Makefile
> >  create mode 100644 usr.sbin/powerd/powerd.8
> >  create mode 100644 usr.sbin/powerd/powerd.c
> >
> > http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/cc537f99eefe3
e1190b0d2388ead346180e9ea24
> > --
> > DragonFly BSD source repository
>
>
>
> --
> Live Free or Die