naios / powersaver

Manages Windows Power Plans automatically based on running process names

Power Saver

Manages Windows Power Plans automatically based on running process names.

The Power Saver will set the power plan to Balanced if the running processes match a provided list, the plan is set to Power Saver otherwise. This can save and regulate the consumed energy of a Windows system to reduce your electricity bill and cooling requirements because the performance is force-throttled if you do not need it.

The benefits of an automatic power plan selection can be increased by customizing your Power Saver plan to limit the resource consumption even further (e.g. max CPU usage: 60%).

The spawned process is hidden and will react to its changed configuration file automatically. A tray icon is displayed to indicate the current power level (green = saving and orange = balanced). Additionally, the tray icon provides the ability to force a specific power level among other useful options.

Configuration

The configuration file path is detected as following

1. The first program argument if provided
2. The POWER_SAVER_CONFIG_PATH environment variable, if set.
3. A powersaver.yaml that is located next to the executable.

The configuration file is simple:

# Process pooling time in seconds
interval: 30

# Case insensitive program names that promote the current
# power scheme to "Balanced", otherwise "Power Saver" is set.
balanced:
  - Unreal
  - Blender
  - devenv

File changes are detected automatically and adjust the power plan instantly!

Building

cargo build --release

powersaver's Issues

Feature Request: Add more power plans

Hi,

nice tool, very useful for my Laptop!

It would be great if we can also add more power plans like High Performance Mode or custom ones...

powercfg /list

For the DAW Bitwig Studio i prefer tmy High performance plan over any other plan, less clicks and pops in the audio material if CPU is nearly maxed out!

example:

# Process pooling time in seconds
interval: 30

# Case insensitive program names that promote the current
# power scheme to "Balanced", otherwise "Power Saver" is set.
balanced:
  - Unreal
  - Blender
  - devenv

high:
  - Bitwig Studio

8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c:
  - Bitwig Studio

Unable to compile

Hi.
I am new to Rust. I am trying to compile but I am getting these errors, with the original source code, without any changes.

error[E0793]: reference to packed field is unaligned
    --> C:\Users\Leonardo\.cargo\registry\src\index.crates.io-6f17d22bba15001f\ntapi-0.3.7\src\ntexapi.rs:2783:52
     |
2783 |         *tick_count.QuadPart_mut() = read_volatile(&(*USER_SHARED_DATA).u.TickCountQuad);
     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     |
     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)

error[E0793]: reference to packed field is unaligned
    --> C:\Users\Leonardo\.cargo\registry\src\index.crates.io-6f17d22bba15001f\ntapi-0.3.7\src\ntexapi.rs:2807:25
     |
2807 |         ((read_volatile(&(*USER_SHARED_DATA).u.TickCountQuad)
     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     |
     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)

For more information about this error, try `rustc --explain E0793`.
error: could not compile `ntapi` (lib) due to 2 previous errors ```


Can you check the source code  ?

My objective is to change the program to use the Power save plan for default and High Performance to selected apps. 
Thanks.

compile new release

Can you please compile new release for Windows 10 x64? Thank you!!

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