Messages in this thread | | | Date | Tue, 11 Feb 2014 06:43:42 +0100 | From | Jan Kiszka <> | Subject | Re: [PATCH] intel_idle: Add CPU model 54 (Atom N2000 series) |
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On 2014-02-11 01:01, Len Brown wrote: > Please send the output of these two command before and after the patch: > > dmesg | grep idle > grep . /sys/devices/system/cpu/cpu0/cpuidle/*/*
Before: # dmesg | grep idle [ 0.648783] cpuidle: using governor ladder [ 0.648787] cpuidle: using governor menu [ 1.053215] intel_idle: does not run on family 6 model 54 [ 3.285430] ACPI: acpi_idle registered with cpuidle # grep . /sys/devices/system/cpu/cpu0/cpuidle/*/* /sys/devices/system/cpu/cpu0/cpuidle/state0/desc:CPUIDLE CORE POLL IDLE /sys/devices/system/cpu/cpu0/cpuidle/state0/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state0/latency:0 /sys/devices/system/cpu/cpu0/cpuidle/state0/name:POLL /sys/devices/system/cpu/cpu0/cpuidle/state0/power:4294967295 /sys/devices/system/cpu/cpu0/cpuidle/state0/time:443 /sys/devices/system/cpu/cpu0/cpuidle/state0/usage:5 /sys/devices/system/cpu/cpu0/cpuidle/state1/desc:ACPI FFH INTEL MWAIT 0x0 /sys/devices/system/cpu/cpu0/cpuidle/state1/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state1/latency:1 /sys/devices/system/cpu/cpu0/cpuidle/state1/name:C1 /sys/devices/system/cpu/cpu0/cpuidle/state1/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state1/time:420944 /sys/devices/system/cpu/cpu0/cpuidle/state1/usage:1798 /sys/devices/system/cpu/cpu0/cpuidle/state2/desc:ACPI FFH INTEL MWAIT 0x10 /sys/devices/system/cpu/cpu0/cpuidle/state2/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state2/latency:20 /sys/devices/system/cpu/cpu0/cpuidle/state2/name:C2 /sys/devices/system/cpu/cpu0/cpuidle/state2/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state2/time:119479360 /sys/devices/system/cpu/cpu0/cpuidle/state2/usage:32863 /sys/devices/system/cpu/cpu0/cpuidle/state3/desc:ACPI FFH INTEL MWAIT 0x30 /sys/devices/system/cpu/cpu0/cpuidle/state3/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state3/latency:100 /sys/devices/system/cpu/cpu0/cpuidle/state3/name:C3 /sys/devices/system/cpu/cpu0/cpuidle/state3/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state3/time:1673 /sys/devices/system/cpu/cpu0/cpuidle/state3/usage:7 /sys/devices/system/cpu/cpu0/cpuidle/state4/desc:ACPI FFH INTEL MWAIT 0x52 /sys/devices/system/cpu/cpu0/cpuidle/state4/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state4/latency:140 /sys/devices/system/cpu/cpu0/cpuidle/state4/name:C4 /sys/devices/system/cpu/cpu0/cpuidle/state4/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state4/time:125622 /sys/devices/system/cpu/cpu0/cpuidle/state4/usage:63
After: # dmesg | grep idle [ 0.244640] cpuidle: using governor ladder [ 0.244645] cpuidle: using governor menu [ 0.654351] intel_idle: MWAIT substates: 0x3020220 [ 0.654355] intel_idle: v0.4 model 0x36 [ 0.654359] intel_idle: lapic_timer_reliable_states 0xffffffff # grep . /sys/devices/system/cpu/cpu0/cpuidle/*/* /sys/devices/system/cpu/cpu0/cpuidle/state0/desc:CPUIDLE CORE POLL IDLE /sys/devices/system/cpu/cpu0/cpuidle/state0/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state0/latency:0 /sys/devices/system/cpu/cpu0/cpuidle/state0/name:POLL /sys/devices/system/cpu/cpu0/cpuidle/state0/power:4294967295 /sys/devices/system/cpu/cpu0/cpuidle/state0/time:572 /sys/devices/system/cpu/cpu0/cpuidle/state0/usage:12 /sys/devices/system/cpu/cpu0/cpuidle/state1/desc:MWAIT 0x00 /sys/devices/system/cpu/cpu0/cpuidle/state1/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state1/latency:10 /sys/devices/system/cpu/cpu0/cpuidle/state1/name:C1E-ATM /sys/devices/system/cpu/cpu0/cpuidle/state1/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state1/time:722013 /sys/devices/system/cpu/cpu0/cpuidle/state1/usage:3132 /sys/devices/system/cpu/cpu0/cpuidle/state2/desc:MWAIT 0x10 /sys/devices/system/cpu/cpu0/cpuidle/state2/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state2/latency:20 /sys/devices/system/cpu/cpu0/cpuidle/state2/name:C2-ATM /sys/devices/system/cpu/cpu0/cpuidle/state2/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state2/time:4512127 /sys/devices/system/cpu/cpu0/cpuidle/state2/usage:9147 /sys/devices/system/cpu/cpu0/cpuidle/state3/desc:MWAIT 0x30 /sys/devices/system/cpu/cpu0/cpuidle/state3/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state3/latency:100 /sys/devices/system/cpu/cpu0/cpuidle/state3/name:C4-ATM /sys/devices/system/cpu/cpu0/cpuidle/state3/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state3/time:1996954 /sys/devices/system/cpu/cpu0/cpuidle/state3/usage:2696 /sys/devices/system/cpu/cpu0/cpuidle/state4/desc:MWAIT 0x52 /sys/devices/system/cpu/cpu0/cpuidle/state4/disable:0 /sys/devices/system/cpu/cpu0/cpuidle/state4/latency:140 /sys/devices/system/cpu/cpu0/cpuidle/state4/name:C6-ATM /sys/devices/system/cpu/cpu0/cpuidle/state4/power:0 /sys/devices/system/cpu/cpu0/cpuidle/state4/time:266926331 /sys/devices/system/cpu/cpu0/cpuidle/state4/usage:73695
> > How did you measure power on the the DN2800MT, and on what workload?
I measured the input current of the board @12V. In both cases, the system was idle in single-user mode, practically no processes running.
Jan
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