On Sun, 07 Dec 2014 01:44:48 +0100, Romick <[email protected]> wrote:

Also suggested in /etc/sysctl.conf:

        hw.cpu_mwait_halt=0x44
        hw.cpu_mwait_spin=0x11

Now these sysctls are read-only. Which C-states I must use with
machdep.mwait.CX.[idle, spin]?

machdep.mwait.CX.supported: C1/0 C1/1 C2/0 C3/0 C3/1 C4/0 C4/1 C4/2 C4/3
C5/0 C6/0 C7/0

Tried machdep.mwait.CX.idle=AUTODEEP?

The sysctl machdep.mwait output should tell you how often each state was entered.

Sascha

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