Lines Matching +full:cpu +full:- +full:idle +full:- +full:states

1 .TH "CPUPOWER-IDLE-INFO" "1" "0.1" "" "cpupower Manual"
4 cpupower\-idle\-info \- Utility to retrieve cpu idle kernel information
7 cpupower [ \-c cpulist ] idle\-info [\fIoptions\fP]
10 A tool which prints out per cpu idle information helpful to developers and interested users.
14 \fB\-f\fR \fB\-\-silent\fR
15 Only print a summary of all available C-states in the system.
17 \fB\-e\fR \fB\-\-proc\fR
19 Prints out idle information in old /proc/acpi/processor/*/power format. This
23 .SH IDLE\-INFO DESCRIPTIONS
26 statistics when it enters or leaves an idle state, therefore on a very idle or
28 good overview about the usage and availability of processor sleep states on
31 Be aware that the sleep states as exported by the hardware or BIOS and used by
37 which monitor the duration of sleep states the processor resided in. The
38 cpupower monitor tool (cpupower\-monitor(1)) can be used to show real sleep
42 .SH IDLE\-INFO ARCHITECTURE SPECIFIC DESCRIPTIONS
44 POLL idle state
46 If cpuidle is active, X86 platforms have one special idle state.
47 The POLL idle state is not a real idle state, it does not save any
48 power. Instead, a busy\-loop is executed doing nothing for a short period of
50 very soon and entering any real hardware idle state may result in a slight
57 The acpi_idle cpuidle driver retrieves available sleep states (C\-states) from
68 provides C\-state ACPI tables).
70 ignores ACPI BIOS exported processor sleep states tables.
75 other cores is described in the cpupower(1) manpage in the \-\-cpu option
81 \fI/sys/devices/system/cpu/cpu*/cpuidle/state*\fP
82 \fI/sys/devices/system/cpu/cpuidle/*\fP
90 cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1),
91 cpupower\-idle\-set(1)