Re: Speed Steping hw.acpi.cpu.cx_support
Bruno Ducrot <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.mobile |
|---|---|
| Message-ID | <[email protected]> |
On Sun, Sep 25, 2005 at 07:49:08PM -0700, Kevin Oberman wrote: > > Does any one know how to config speed steping. > > > > sysctl output > hw.acpi.cpu.cx_support: > > C1/1 C2/1 C3/85 > > hw.acpi.cpu.cx_support C1 > > hw.acpi.cpu.cx_support 100.00% 0.00% 0.00% > > Add th line: > performance_cx_lowest="LOW" > to /etc/rc.local. To get C3, you must run without USB drivers and, with the numbers you quoted, C2 is not going to buy you much. Except that Cx stuff have absolutely nothing to do with speed steping. The Cx states are some power states entered by the processor in the idle loop. The higher is less power hungry at the cost of more latency to leave this power state. -- Bruno Ducrot -- Which is worse: ignorance or apathy? -- Don't know. Don't care. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-mobile To unsubscribe, send any mail to "[email protected]"