> Have you checked http://wiki.freebsd.org/TuningPowerConsumption? I have. It was kind of confusing and didn't know about: > 1. For CX states to function correctly you better disable throttling > and powerd. I also witnessed at least one machine that hitting any CX > mode stops generate interrupts on APIC clock (I had to boot it with a > mousee until I disabled APIC clocks). So do you recommend I use throttling or C3? I think C3 runs slightly cooler. I can't tell since I don't drop under 50C in X. Fan increases at 60C and drops me back.
> 2. You don't need to set each processor CX value, you only need to > set: > > hw.acpi.cpu.cx_lowest=C3 > > All cpu's will inherit default profile. > Thanks. > First need to see what state the processor supports the current > system >sysctl -a | grep cx_ This is before heavy load while it still remembers the C3: hw.acpi.cpu.cx_lowest: C1 dev.cpu.0.cx_supported: C1/1 C2/80 C3/109 dev.cpu.0.cx_lowest: C3 dev.cpu.0.cx_usage: 0.89% 0.77% 98.32% last 47us dev.cpu.1.cx_supported: C1/1 C2/80 C3/109 dev.cpu.1.cx_lowest: C3 dev.cpu.1.cx_usage: 3.30% 3.18% 93.50% last 3852us dev.cpu.2.cx_supported: C1/1 C2/80 C3/109 dev.cpu.2.cx_lowest: C3 dev.cpu.2.cx_usage: 2.95% 1.42% 95.61% last 293us dev.cpu.3.cx_supported: C1/1 C2/80 C3/109 dev.cpu.3.cx_lowest: C3 dev.cpu.3.cx_usage: 2.73% 1.55% 95.71% last 8471us After lowest becomes C1, all 4 cores are 100% C1. So I have to manually set back, or disable powerd or C states. I prefer powerd, tbh, so please recommend what I should use. Cheers. -- Lyubomir Grigorov (bgalakazam) _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
