Re: hw.acpi.cpu.economy_speed
"Kevin Oberman" <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.mobile |
|---|---|
| Message-ID | <[email protected]> |
> From: sebastian ssmoller <[email protected]> > Date: Fri, 16 Jan 2004 21:13:19 +0100 > Sender: [email protected] > > hi, > i noticed that this sysctl flag is not longer supported. what should one > use instead to handle different cpu speed when running battery ? Use hw.acpi.cpu.thottle_state is the thing. It may be set to a value between 1 and hw.acpi.cpu.throttle_max where throttle_max is full speed. If you have a Centrino or P4-M, you can also save power by use of hw.acpi.cpu.cx_lowest. It can be set to 0-2 which enables "deeper sleep" when the system is idle. Not all states are available on all systems. The higher values will result in a longer time to wake up after the CPU becomes idle, but will use less power. Both of these have values in /etc/defaults/rc.conf, but I don't think Nate has hooked those up, yet. At the moment you need to set them manually. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: [email protected] Phone: +1 510 486-8634 _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-mobile To unsubscribe, send any mail to "[email protected]"