Lines Matching +full:power +full:- +full:management
1 # SPDX-License-Identifier: GPL-2.0-only
9 suspend-to-RAM state (e.g. the ACPI S3 state).
30 user-space before invoking suspend. There's a run-time switch
31 at '/sys/power/sync_on_suspend' to configure this behaviour.
32 This setting changes the default for the run-tim switch. Say Y
50 You can suspend your machine with 'echo disk > /sys/power/state'
60 for suspend states like suspend-to-RAM (STR) often don't work very
72 <file:Documentation/power/swsusp-and-swap-files.rst>).
81 For more information take a look at <file:Documentation/power/swsusp.rst>.
100 The default resume partition is the partition that the suspend-
101 to-disk implementation will look for a suspended disk image.
136 non-zero numbered CPU, it may define ARCH_SUSPEND_NONZERO_CPU. This
150 Notify kernel of aggressive userspace autosleep power management policy.
152 This option changes the behavior of various sleep-sensitive code to deal
153 with frequent userspace-initiated transitions into a global sleep state.
160 a userspace power manager service should enable this option; and not
171 objects with the help of a sysfs-based interface.
185 bool "Device power management core functionality"
187 Enable functionality allowing I/O devices to be put into energy-saving
188 (low power) states, for example after a specified period of inactivity
189 (autosuspended), and woken up in response to a hardware-generated
190 wake-up event or a driver's request.
195 wake-up events.
198 bool "Power Management Debug Support"
201 This option enables various debugging support in the Power Management
206 bool "Extra PM attributes in sysfs for low-level debugging/testing"
209 Add extra sysfs attributes allowing one to access some Power Management
211 developer interested in debugging/testing Power Management, say "no".
252 functions from <linux/resume-trace.h> as well as the
253 <asm/resume-trace.h> header with a TRACE_RESUME() macro.
255 The way the information is presented is architecture-
272 dmesg -s 1000000 | grep 'hash matches'
274 CAUTION: this option will cause your machine's real-time clock to be
278 tristate "Advanced Power Management Emulation"
281 APM is a BIOS specification for saving power using several different
285 battery status information, and user-space programs will receive
289 and more information, read <file:Documentation/power/apm-acpi.rst>
290 and the Battery Powered Linux mini-HOWTO, available from
295 VESA-compliant "green" monitors.
312 bool "Enable workqueue power-efficient mode by default"
315 Per-cpu workqueues are generally preferred because they show
317 per-cpu workqueues tend to be more power hungry than unbound
321 per-cpu workqueues which were observed to contribute
322 significantly to power consumption unbound, leading to measurably
323 lower power usage at the cost of small performance overhead.
351 The exact usage of the energy model is subsystem-dependent.