Yes read this posts
I did, running watch cat /sys/bus/pci/devices/0000:01:00.0/power/runtime_status says itās suspended and running watch sudo tlp-stat -b when itās discharging (or fully charged, havenāt tested while itās charging) doesnāt show any field named /sys/class/power_supply/BAT0/current_now, the output is as follows:
$ sudo tlp-stat -b
--- TLP 1.3.1 --------------------------------------------
+++ Battery Features: Charge Thresholds and Recalibrate
natacpi = inactive (laptop not supported)
tpacpi-bat = inactive (laptop not supported)
tp-smapi = inactive (laptop not supported)
+++ Battery Status: BAT0
/sys/class/power_supply/BAT0/manufacturer = SMP
/sys/class/power_supply/BAT0/model_name = L16M3P24
/sys/class/power_supply/BAT0/cycle_count = (not supported)
/sys/class/power_supply/BAT0/energy_full_design = 45000 [mWh]
/sys/class/power_supply/BAT0/energy_full = 32960 [mWh]
/sys/class/power_supply/BAT0/energy_now = 32310 [mWh]
/sys/class/power_supply/BAT0/power_now = 13967 [mW]
/sys/class/power_supply/BAT0/status = Discharging
Charge = 98.0 [%]
Capacity = 73.2 [%]
Am I doing something wrong? You mentioned that you made changes to your TLP, but the one you mentioned was to suspend the dGPU, now provide extra fields on this output, right?
The battery does seem to drain very fast, but again that might not be due to the dGPU only me sucking at configuring TLP.
In that case should be /sys/class/power_supply/BAT0/power_now,looks like the name can be different,and yours measure in mW while mine measure in mA
--- TLP 1.3.1 --------------------------------------------
+++ Battery Features: Charge Thresholds and Recalibrate
natacpi = inactive (laptop not supported)
tpacpi-bat = inactive (laptop not supported)
tp-smapi = inactive (laptop not supported)
+++ Battery Status: BAT0
/sys/class/power_supply/BAT0/manufacturer = SMP
/sys/class/power_supply/BAT0/model_name = DELL 71JF452
/sys/class/power_supply/BAT0/cycle_count = (not supported)
/sys/class/power_supply/BAT0/charge_full_design = 6491 [mAh]
/sys/class/power_supply/BAT0/charge_full = 5730 [mAh]
/sys/class/power_supply/BAT0/charge_now = 4539 [mAh]
/sys/class/power_supply/BAT0/current_now = 1 [mA]
/sys/class/power_supply/BAT0/status = Idle
Charge = 79.2 [%]
Capacity = 88.3 [%]
If it says suspended then the dGPU is powered off,you can try running that command,keep it opened and run a cuda application ,you should see active and when you quit the applicacion it should say suspended right away,in that case you are good. 
Yeah thats right,it was in case TLP prevents the dGPU from powered off,so you donāt need to do that,
TLP should bring power saving out of the box but you can tweak to have more power saving if you want at cost of performance,you can install tlpui from the official repositories to have a graphical interface to configure TLP, and read what option do in their website Settings ā TLP 1.3.1 documentation
Every setting you change in TLP you need to restart it with sudo tlp start, then you just measure with watch sudo tlp-stat -b and check the /sys/class/power_supply/BAT0/power_now, like in my case
Worth noting, that these configurations are not supported by NVIDIA on Linux.
As per the official documentation: AppendixĀ A.Ā Supported NVIDIA GPU Products
Note that the list of supported GPU products provided below and on the driver download page is provided to indicate which GPUs are supported by a particular driver version. Some designs incorporating supported GPUs may not be compatible with the NVIDIA Linux driver: in particular, notebook and all-in-one desktop designs with switchable (hybrid) or Optimus graphics will not work if means to disable the integrated graphics in hardware are not available.
I donāt think /sys/class/power_supply/BAT0/power_now is the current power consumption.
Hereās a small video that I made running a benchmark for my GPU, on the right terminal, and on the top left terminal you can see running TLP and on the bottom left nvidia-smi (thanks for the watch command, didnāt even knew this was a thing and it kicks ass):
https://youtu.be/CQ5CwnVsXak
As you can see it fluctuate, thereās no clear increase when the program starts kicking, although the dGPU is now running.
The same thing happened for a stress test to the CPU.
In your video I see you are charging while doing these test,/sys/class/power_supply/BAT0/power_now is measuring the mW the charger is giving to the battery,try doing in battery instead,it should output the battery discharging mW.
That makes sense, thanks.
After doing the test on battery mode, on idle (Firefox, i3, polybar and 3 terminals opens) itās always around 17W.
Small workloads, such as writing this forum post and a few other tabs open, can easily go over 20W.
When I run the benchmark for the dGPU it kicks all the way to a maximum of 47W, however the benchmark is quite fast and it seems that this power measurement takes some time to reach a stable point.
Is this too much power consumption?
Hardware (spoiler)
Lenovo Y520Intel i5-7300HQ CPU @ 2.50GHz (min: 0.8 GHz, max: 3.5 GHz)
iGPU (Intel HD Graphics 630) + dGPU (NVIDIA GeForce GTX 1050Ti Mobile)
2 SSDs (1 NVMe M.2 + 1 SATA 2.5āā)
50% brightness
I have tweaked my TLP config a bit, but never too much, as I have never had a proper guide on what to expect after make certain changes, and considering that sometimes I would need the laptop to go full throttle, Iām afraid I mess something up and end up wasting twice as long running my programs because I miss configured TLP.
Are there any in-depth go to guides for power consumption under Linux based OSs?
P.S.: After writing this post and reaching 58% battery something triggered and now itās on 12W when idle, but Iām sure I didnāt had anything running in the background, but I could have missed it!
There is no exact guide to what to do tweak because every laptop is different with different cpu,gpu etc,check out the TLP documentation and tweak the setting and see what fits for you.
You have the exact cpu and exact gpu as mine so I can give you my TLP configuration as a guide. Remember that you can use the TLPUI for GUI Interface.
TLP Configuration
# ------------------------------------------------------------------------------
# /etc/tlp.conf - TLP user configuration
# See full explanation: https://linrunner.de/en/tlp/docs/tlp-configuration.html
#
# New configuration scheme (TLP 1.3). Settings are read in the following order:
# 1. Intrinsic defaults
# 2. /etc/tlp.d/*.conf - Drop-in customization snippets
# 3. /etc/tlp.conf - User configuration (this file)
#
# Notes:
# - In case of identical parameters, the last occurence has precedence
# - This also means, parameters enabled here will override anything else
# - IMPORTANT: all parameters here are disabled, remove the leading '#'
# to enable them; shown values may be suggestions rather than defaults
# - Default *: intrinsic default that is effective when the parameter is missing
# or disabled by a leading '#'; use PARAM="" to disable an intrinsic default
# - Default <none>: do nothing or use kernel/hardware defaults
# ------------------------------------------------------------------------------
# tlp - Parameters for power saving
# Set to 0 to disable, 1 to enable TLP.
# Default: 1
#TLP_ENABLE=1
# Operation mode when no power supply can be detected: AC, BAT.
# Concerns some desktop and embedded hardware only.
# Default: <none>
#TLP_DEFAULT_MODE=AC
# Operation mode select: 0=depend on power source, 1=always use TLP_DEFAULT_MODE
# Note: use in conjunction with TLP_DEFAULT_MODE=BAT for BAT settings on AC.
# Default: 0
#TLP_PERSISTENT_DEFAULT=0
# Power supply class to ignore when determining operation mode: AC, BAT.
# Note: try on laptops where operation mode AC/BAT is incorrectly detected.
# Default: <none>
#TLP_PS_IGNORE=BAT
# Seconds laptop mode has to wait after the disk goes idle before doing a sync.
# Non-zero value enables, zero disables laptop mode.
# Default: 0 (AC), 2 (BAT)
#DISK_IDLE_SECS_ON_AC=0
#DISK_IDLE_SECS_ON_BAT=2
# Dirty page values (timeouts in secs).
# Default: 15 (AC), 60 (BAT)
#MAX_LOST_WORK_SECS_ON_AC=15
#MAX_LOST_WORK_SECS_ON_BAT=60
# Note: CPU parameters below are disabled by default, remove the leading #
# to enable them, otherwise kernel defaults will be used.
#
# Select a CPU frequency scaling governor.
# Intel Core i processor with intel_pstate driver:
# powersave(*), performance.
# Other hardware with acpi-cpufreq driver:
# ondemand(*), powersave, performance, conservative, schedutil.
# (*) is recommended.
# Use tlp-stat -p to show the active driver and available governors.
# Important:
# powersave for intel_pstate and ondemand for acpi-cpufreq are power
# efficient for *almost all* workloads and therefore kernel and most
# distributions have chosen them as defaults. If you still want to change,
# you should know what you're doing!
# Default: <none>
CPU_SCALING_GOVERNOR_ON_AC="powersave"
CPU_SCALING_GOVERNOR_ON_BAT="powersave"
# Set the min/max frequency available for the scaling governor.
# Possible values depend on your CPU. For available frequencies see
# the output of tlp-stat -p.
# Default: <none>
#CPU_SCALING_MIN_FREQ_ON_AC=0
#CPU_SCALING_MAX_FREQ_ON_AC=0
#CPU_SCALING_MIN_FREQ_ON_BAT=0
#CPU_SCALING_MAX_FREQ_ON_BAT=0
# Set Intel CPU energy/performance policies HWP.EPP and EPB:
# performance, balance_performance, default, balance_power, power
# Values are given in order of increasing power saving.
# Notes:
# - Requires an Intel Core i processor
# - HWP.EPP requires kernel 4.10 and intel_pstate driver
# - EPB requires kernel 5.2 or module msr and x86_energy_perf_policy
# from linux-tools
# - When HWP.EPP is available, EPB is not set
# Default: balance_performance (AC), balance_power (BAT)
CPU_ENERGY_PERF_POLICY_ON_AC="balance_performance"
CPU_ENERGY_PERF_POLICY_ON_BAT="power"
# Set Intel CPU P-state performance: 0..100 (%).
# Limit the max/min P-state to control the power dissipation of the CPU.
# Values are stated as a percentage of the available performance.
# Requires an Intel Core i processor with intel_pstate driver.
# Default: <none>
CPU_MIN_PERF_ON_AC="0"
CPU_MAX_PERF_ON_AC="100"
CPU_MIN_PERF_ON_BAT="0"
CPU_MAX_PERF_ON_BAT="45"
# Set the CPU "turbo boost" feature: 0=disable, 1=allow
# Requires an Intel Core i processor.
# Important:
# - This may conflict with your distribution's governor settings
# - A value of 1 does *not* activate boosting, it just allows it
# Default: <none>
CPU_BOOST_ON_AC="1"
CPU_BOOST_ON_BAT="0"
# Minimize number of used CPU cores/hyper-threads under light load conditions:
# 0=disable, 1=enable.
# Default: 0 (AC), 1 (BAT)
#SCHED_POWERSAVE_ON_AC="0"
#SCHED_POWERSAVE_ON_BAT="1"
# Kernel NMI Watchdog:
# 0=disable (default, saves power), 1=enable (for kernel debugging only).
# Default: 0
#NMI_WATCHDOG="0"
# Change CPU voltages aka "undervolting" - Kernel with PHC patch required.
# Frequency voltage pairs are written to:
# /sys/devices/system/cpu/cpu0/cpufreq/phc_controls
# CAUTION: only use this, if you thoroughly understand what you are doing!
# Default: <none>.
#PHC_CONTROLS="F:V F:V F:V F:V"
# Disk devices; separate multiple devices with spaces.
# Devices can be specified by disk ID also (lookup with: tlp diskid).
# Note: DISK parameters below are effective only when this option is configured.
# Default: "nvme0n1 sda"
DISK_DEVICES="sda sdb"
# Disk advanced power management level: 1..254, 255 (max saving, min, off).
# Levels 1..127 may spin down the disk; 255 allowable on most drives.
# Separate values for multiple disks with spaces. Use the special value 'keep'
# to keep the hardware default for the particular disk.
# Default: 254 (AC), 128 (BAT)
#DISK_APM_LEVEL_ON_AC="254 254"
#DISK_APM_LEVEL_ON_BAT="128 128"
# Hard disk spin down timeout:
# 0: spin down disabled
# 1..240: timeouts from 5s to 20min (in units of 5s)
# 241..251: timeouts from 30min to 5.5 hours (in units of 30min)
# See 'man hdparm' for details.
# Separate values for multiple disks with spaces. Use the special value 'keep'
# to keep the hardware default for the particular disk.
# Default: <none>
#DISK_SPINDOWN_TIMEOUT_ON_AC="0 0"
#DISK_SPINDOWN_TIMEOUT_ON_BAT="0 0"
# Select I/O scheduler for the disk devices.
# Multi queue (blk-mq) schedulers:
# mq-deadline(*), none, kyber, bfq
# Single queue schedulers:
# deadline(*), cfq, bfq, noop
# (*) recommended.
# Separate values for multiple disks with spaces. Use the special value 'keep'
# to keep the kernel default scheduler for the particular disk.
# Notes:
# - Multi queue (blk-mq) may need kernel boot option 'scsi_mod.use_blk_mq=1'
# and 'modprobe mq-deadline-iosched|kyber|bfq' on kernels < 5.0
# - Single queue schedulers are legacy now and were removed together with
# the old block layer in kernel 5.0
# Default: keep
#DISK_IOSCHED=""
# AHCI link power management (ALPM) for disk devices:
# min_power, med_power_with_dipm(*), medium_power, max_performance.
# (*) Kernel >= 4.15 required, then recommended.
# Multiple values separated with spaces are tried sequentially until success.
# Default:
# - "med_power_with_dipm max_performance" (AC)
# - "med_power_with_dipm min_power" (BAT)
SATA_LINKPWR_ON_AC="med_power_with_dipm max_performance"
SATA_LINKPWR_ON_BAT="med_power_with_dipm min_power"
# Exclude host devices from AHCI link power management.
# Separate multiple hosts with spaces.
# Default: <none>
#SATA_LINKPWR_BLACKLIST="host1"
# Runtime Power Management for AHCI host and disks devices:
# on=disable, auto=enable.
# EXPERIMENTAL ** WARNING: auto may cause system lockups/data loss.
# Default: <none>
#AHCI_RUNTIME_PM_ON_AC=on
#AHCI_RUNTIME_PM_ON_BAT=on
# Seconds of inactivity before disk is suspended.
# Note: effective only when AHCI_RUNTIME_PM_ON_AC/BAT is activated.
# Default: 15
AHCI_RUNTIME_PM_TIMEOUT=15
# PCI Express Active State Power Management (PCIe ASPM):
# default(*), performance, powersave, powersupersave.
# (*) keeps BIOS ASPM defaults (recommended)
# Default: <none>
PCIE_ASPM_ON_AC="powersave"
PCIE_ASPM_ON_BAT="powersave"
# Set the min/max/turbo frequency for the Intel GPU.
# Possible values depend on your hardware. For available frequencies see
# the output of tlp-stat -g.
# Default: <none>
#INTEL_GPU_MIN_FREQ_ON_AC=0
#INTEL_GPU_MIN_FREQ_ON_BAT=0
#INTEL_GPU_MAX_FREQ_ON_AC=0
#INTEL_GPU_MAX_FREQ_ON_BAT=0
#INTEL_GPU_BOOST_FREQ_ON_AC=0
#INTEL_GPU_BOOST_FREQ_ON_BAT=0
# Radeon graphics clock speed (profile method): low, mid, high, auto, default;
# auto = mid on BAT, high on AC.
# Default: default
#RADEON_POWER_PROFILE_ON_AC=default
#RADEON_POWER_PROFILE_ON_BAT=default
# Radeon dynamic power management method (DPM): battery, performance.
# Default: <none>
#RADEON_DPM_STATE_ON_AC=performance
#RADEON_DPM_STATE_ON_BAT=battery
# Radeon DPM performance level: auto, low, high; auto is recommended.
# Note: effective only when RADEON_DPM_STATE_ON_AC/BAT is activated.
# Default: auto
#RADEON_DPM_PERF_LEVEL_ON_AC=auto
#RADEON_DPM_PERF_LEVEL_ON_BAT=auto
# WiFi power saving mode: on=enable, off=disable; not supported by all adapters.
# Default: off (AC), on (BAT)
WIFI_PWR_ON_AC=off
WIFI_PWR_ON_BAT=on
# Disable wake on LAN: Y/N.
# Default: Y
WOL_DISABLE=Y
# Enable audio power saving for Intel HDA, AC97 devices (timeout in secs).
# A value of 0 disables, >=1 enables power saving (recommended: 1).
# Default: 0 (AC), 1 (BAT)
SOUND_POWER_SAVE_ON_AC="1"
SOUND_POWER_SAVE_ON_BAT=1
# Disable controller too (HDA only): Y/N.
# Note: effective only when SOUND_POWER_SAVE_ON_AC/BAT is activated.
# Default: Y
#SOUND_POWER_SAVE_CONTROLLER=Y
# Power off optical drive in UltraBay/MediaBay: 0=disable, 1=enable.
# Drive can be powered on again by releasing (and reinserting) the eject lever
# or by pressing the disc eject button on newer models.
# Note: an UltraBay/MediaBay hard disk is never powered off.
# Default: 0
#BAY_POWEROFF_ON_AC=0
#BAY_POWEROFF_ON_BAT=0
# Optical drive device to power off
# Default: sr0
#BAY_DEVICE="sr0"
# Runtime Power Management for PCI(e) bus devices: on=disable, auto=enable.
# Default: on (AC), auto (BAT)
RUNTIME_PM_ON_AC="auto"
RUNTIME_PM_ON_BAT="auto"
# Exclude PCI(e) device adresses the following list from Runtime PM
# (separate with spaces). Use lspci to get the adresses (1st column).
# Default: <none>
#RUNTIME_PM_BLACKLIST="01:00.0 01:00.1"
# Exclude PCI(e) devices assigned to the listed drivers from Runtime PM.
# Default when unconfigured is "amdgpu nouveau nvidia radeon" which
# prevents accidential power-on of dGPU in hybrid graphics setups.
# Separate multiple drivers with spaces.
# Default: "amdgpu mei_me nouveau nvidia pcieport radeon", use "" to disable
# completely.
RUNTIME_PM_DRIVER_BLACKLIST="* empty"
# Set to 0 to disable, 1 to enable USB autosuspend feature.
# Default: 1
USB_AUTOSUSPEND="1"
# Exclude listed devices from USB autosuspend (separate with spaces).
# Use lsusb to get the ids.
# Note: input devices (usbhid) are excluded automatically
# Default: <none>
#USB_BLACKLIST="1111:2222 3333:4444"
# Bluetooth devices are excluded from USB autosuspend:
# 0=do not exclude, 1=exclude.
# Default: 0
#USB_BLACKLIST_BTUSB=0
# Phone devices are excluded from USB autosuspend:
# 0=do not exclude, 1=exclude (enable charging).
# Default: 0
USB_BLACKLIST_PHONE="1"
# Printers are excluded from USB autosuspend:
# 0=do not exclude, 1=exclude.
# Default: 1
#USB_BLACKLIST_PRINTER=1
# WWAN devices are excluded from USB autosuspend:
# 0=do not exclude, 1=exclude.
# Default: 0
USB_BLACKLIST_WWAN="* empty"
# Include listed devices into USB autosuspend even if already excluded
# by the blacklists above (separate with spaces). Use lsusb to get the ids.
# Default: <none>
#USB_WHITELIST="1111:2222 3333:4444"
# Set to 1 to disable autosuspend before shutdown, 0 to do nothing
# Note: use as a workaround for USB devices that cause shutdown problems.
# Default: 0
USB_AUTOSUSPEND_DISABLE_ON_SHUTDOWN="* empty"
# Restore radio device state (Bluetooth, WiFi, WWAN) from previous shutdown
# on system startup: 0=disable, 1=enable.
# Note: the parameters DEVICES_TO_DISABLE/ENABLE_ON_STARTUP/SHUTDOWN below
# are ignored when this is enabled.
# Default: 0
RESTORE_DEVICE_STATE_ON_STARTUP="* empty"
# Radio devices to disable on startup: bluetooth, wifi, wwan.
# Separate multiple devices with spaces.
# Default: <none>
#DEVICES_TO_DISABLE_ON_STARTUP="bluetooth wifi wwan"
# Radio devices to enable on startup: bluetooth, wifi, wwan.
# Separate multiple devices with spaces.
# Default: <none>
#DEVICES_TO_ENABLE_ON_STARTUP="wifi"
# Radio devices to disable on shutdown: bluetooth, wifi, wwan.
# Note: use as a workaround for devices that are blocking shutdown.
# Default: <none>
#DEVICES_TO_DISABLE_ON_SHUTDOWN="bluetooth wifi wwan"
# Radio devices to enable on shutdown: bluetooth, wifi, wwan.
# (to prevent other operating systems from missing radios).
# Default: <none>
#DEVICES_TO_ENABLE_ON_SHUTDOWN="wwan"
# Radio devices to enable on AC: bluetooth, wifi, wwan.
# Default: <none>
#DEVICES_TO_ENABLE_ON_AC="bluetooth wifi wwan"
# Radio devices to disable on battery: bluetooth, wifi, wwan.
# Default: <none>
#DEVICES_TO_DISABLE_ON_BAT="bluetooth wifi wwan"
# Radio devices to disable on battery when not in use (not connected):
# bluetooth, wifi, wwan.
# Default: <none>
#DEVICES_TO_DISABLE_ON_BAT_NOT_IN_USE="bluetooth wifi wwan"
# Battery charge thresholds (ThinkPad only).
# May require external kernel module(s), refer to the output of tlp-stat -b.
# Charging starts when the remaining capacity falls below the
# START_CHARGE_THRESH value and stops when exceeding the STOP_CHARGE_THRESH
# value.
# Main / Internal battery (values in %)
# Default: <none>
#START_CHARGE_THRESH_BAT0=75
#STOP_CHARGE_THRESH_BAT0=80
# Ultrabay / Slice / Replaceable battery (values in %)
# Default: <none>
#START_CHARGE_THRESH_BAT1=75
#STOP_CHARGE_THRESH_BAT1=80
# Restore charge thresholds when AC is unplugged: 0=disable, 1=enable.
# Default: 0
#RESTORE_THRESHOLDS_ON_BAT=1
# Battery feature drivers: 0=disable, 1=enable
# Default: 1 (all)
#NATACPI_ENABLE=1
#TPACPI_ENABLE=1
#TPSMAPI_ENABLE=1
# ------------------------------------------------------------------------------
# tlp-rdw - Parameters for the radio device wizard
# Possible devices: bluetooth, wifi, wwan.
# Separate multiple radio devices with spaces.
# Default: <none> (for all parameters below)
# Radio devices to disable on connect.
#DEVICES_TO_DISABLE_ON_LAN_CONNECT="wifi wwan"
#DEVICES_TO_DISABLE_ON_WIFI_CONNECT="wwan"
#DEVICES_TO_DISABLE_ON_WWAN_CONNECT="wifi"
# Radio devices to enable on disconnect.
#DEVICES_TO_ENABLE_ON_LAN_DISCONNECT="wifi wwan"
#DEVICES_TO_ENABLE_ON_WIFI_DISCONNECT=""
#DEVICES_TO_ENABLE_ON_WWAN_DISCONNECT=""
# Radio devices to enable/disable when docked.
#DEVICES_TO_ENABLE_ON_DOCK=""
#DEVICES_TO_DISABLE_ON_DOCK=""
# Radio devices to enable/disable when undocked.
#DEVICES_TO_ENABLE_ON_UNDOCK="wifi"
#DEVICES_TO_DISABLE_ON_UNDOCK=""
Unfortunately my laptop measures in mA so Iām not sure if 12W is alot.
You could also undervolt the CPU to consume less power
I undervolt it mine to -155 mV,since you are using the exact cpu maybe you can do it too,but do it at your own risk.
intel-undervolt.conf
# Enable or Disable Triggers (elogind)
# Usage: enable [yes/no]
enable no
# CPU Undervolting
# Usage: undervolt ${index} ${display_name} ${undervolt_value}
# Example: undervolt 2 'CPU Cache' -25.84
undervolt 0 'CPU' -155
undervolt 1 'GPU' -155
undervolt 2 'CPU Cache' -155
undervolt 3 'System Agent' 0
undervolt 4 'Analog I/O' 0
# Power Limits Alteration
# Usage: power ${domain} ${short_power_value} ${long_power_value}
# Power value: ${power}[/${time_window}][:enabled][:disabled]
# Domains: package
# Example: power package 45 35
# Example: power package 45/0.002 35/28
# Example: power package 45/0.002:disabled 35/28:enabled
# Critical Temperature Offset Alteration
# Usage: tjoffset ${temperature_offset}
# Example: tjoffset -20
# Energy Versus Performance Preference Switch
# Usage: hwphint ${mode} ${algorithm} ${load_hint} ${normal_hint}
# Hints: see energy_performance_available_preferences
# Modes: switch, force
# Load algorithm: load:${capture}:${threshold}
# Power algorithm: power[:${domain}:[gt/lt]:${value}[:[and/or]]...]
# Capture: single, multi
# Threshold: CPU usage threshold
# Domain: RAPL power domain, check with `intel-undervolt measure`
# Example: hwphint force load:single:0.8 performance balance_performance
# Example: hwphint switch power:core:gt:8 performance balance_performance
# Daemon Update Interval
# Usage: interval ${interval_in_milliseconds}
interval 5000
# Daemon Actions
# Usage: daemon action[:option...]
# Actions: undervolt, power, tjoffset
# Options: once
daemon undervolt:once
daemon power
daemon tjoffset
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Finally my electromagnetism classes will be used outside of academia, and you can tell how many Watts youāre consuming if you know how much Volts are being supplied.
In SI: Power = Amperage * Voltage, which means that if youāre being supplied with ā 120 V, and in a previous post you had a 1 mA Amperage, your power consumption should be around 0.001*120 = 0.12 W = 120 mW which seems like too little.
I am aware of the TLP GUI, but it doesnāt really add much, itās just a fancy wrapper to edit the config file, and my concerns were in the fields itself.
Anyways I will look at those guides and config files provided, and naturally will take caution considering that this is a sensitive subject.
Thanks again!
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