I'm confused by state0 -- why are usage and time non-zero --
is this due to some residency there during initialization?
I don't know if I like the looks of 2^32 - 1 as the power number...
-Len
[EMAIL PROTECTED] cpuidle]# cat /proc/acpi/processor/CPU0/power
active state: C0
max_cstate: C8
bus master activity: 00000000
maximum allowed latency: 2000000000 usec
states:
C1: type[C1] promotion[--] demotion[--] latency[001]
usage[00000000] duration[00000000000000000000]
C2: type[C2] promotion[--] demotion[--] latency[001]
usage[00000161] duration[00000000000000018522]
C3: type[C3] promotion[--] demotion[--] latency[017]
usage[00088238] duration[00000000002957934702]
[EMAIL PROTECTED] cpuidle]# grep . */*
state0/desc:CPUIDLE CORE POLL IDLE
state0/latency:0
state0/name:C0
state0/power:4294967295
state0/time:11623
state0/usage:6
state1/desc:ACPI FFH INTEL MWAIT 0x0
state1/latency:1
state1/name:C1
state1/power:1000
state1/time:0
state1/usage:0
state2/desc:ACPI FFH INTEL MWAIT 0x10
state2/latency:1
state2/name:C2
state2/power:500
state2/time:5104
state2/usage:163
state3/desc:ACPI FFH INTEL MWAIT 0x20
state3/latency:17
state3/name:C3
state3/power:250
state3/time:830738297
state3/usage:89280
of course this isnt' new with this patch -- 2.6.25-rc1 looks as below:
[EMAIL PROTECTED] cpuidle]# cat /proc/acpi/processor/CPU0/power
active state: C0
max_cstate: C8
bus master activity: 00000000
maximum allowed latency: 2000000000 usec
states:
C1: type[C1] promotion[--] demotion[--] latency[001]
usage[00000000] duration[00000000000000000000]
C2: type[C2] promotion[--] demotion[--] latency[001]
usage[00000202] duration[00000000000000028172]
C3: type[C3] promotion[--] demotion[--] latency[017]
usage[00026011] duration[00000000000264174466]
[EMAIL PROTECTED] cpuidle]# grep . */*
state0/latency:0
state0/name:C0 (poll idle)
state0/power:4294967295
state0/time:35713
state0/usage:6
state1/latency:1
state1/name:C1
state1/power:1000
state1/time:0
state1/usage:0
state2/latency:1
state2/name:C2
state2/power:500
state2/time:7771
state2/usage:203
state3/latency:17
state3/name:C3
state3/power:250
state3/time:74950731
state3/usage:26286
and 2.6.24 showed no C0, as expected.
[EMAIL PROTECTED] cpuidle]# cat /proc/acpi/processor/CPU0/power
active state: C0
max_cstate: C8
bus master activity: 00000000
maximum allowed latency: 2000 usec
states:
C1: type[C1] promotion[--] demotion[--] latency[001]
usage[00000030] duration[00000000000000000000]
C2: type[C2] promotion[--] demotion[--] latency[001]
usage[00000714] duration[00000000000000531448]
C3: type[C3] promotion[--] demotion[--] latency[017]
usage[00020563] duration[00000000000168147357]
[EMAIL PROTECTED] cpuidle]# grep . */*
state0/latency:1
state0/name:C1
state0/power:1000
state0/time:0
state0/usage:30
state1/latency:1
state1/name:C2
state1/power:500
state1/time:148317
state1/usage:719
state2/latency:17
state2/name:C3
state2/power:250
state2/time:48238649
state2/usage:21034
[EMAIL PROTECTED] cpuidle]#
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