⚡ [performance improvement] Bypass cmd.exe for powercfg execution in Powerplan.ahk

[Ven0m0]

💡 What: Modified Run() calls in ahk/Powerplan.ahk to directly execute powercfg.exe instead of passing the command string through cmd.exe /c.

🎯 Why: Launching an intermediate shell process to execute a standalone system command adds unnecessary CPU overhead, an additional process spawn, and memory allocations. Executing the executable directly avoids the overhead of spawning the cmd.exe middleman.

📊 Measured Improvement:
Since this Linux environment lacks Windows or Wine to run AutoHotkey directly, empirical dynamic benchmarking was not feasible. However, this is a well-established theoretical optimization in process execution:

• Baseline: Spawns cmd.exe -> cmd.exe parses string -> cmd.exe spawns powercfg.exe -> returns to AHK.
• Improved: Spawns powercfg.exe -> returns to AHK.

By cutting out the shell process allocation, the CPU cycles spent parsing and launching cmd.exe are entirely eliminated, yielding lower latency and overhead for the power plan switch operations.

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PR created automatically by Jules for task 9118704771034157626 started by @Ven0m0

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[Copilot]

Pull request overview

Updates ahk/Powerplan.ahk to reduce process-spawn overhead during power plan switching by executing powercfg directly (instead of routing through cmd.exe /c), aligning with the repo’s low-latency automation goals.

Changes:

• Replaced Run(A_ComSpec . " /c " . ...) with Run(...) for the power plan switch commands.
• Eliminated the intermediate cmd.exe process spawn for powercfg execution.

[Copilot]

Now that the command is executed directly (not via cmd.exe /c), Run(cmdOnLaunch)/Run(cmdOnClose) depends on resolving powercfg via PATH and will throw an exception if the executable can’t be located/started (whereas cmd.exe would still launch and just return a non-zero exit code). Consider resolving powercfg.exe up front (e.g., via MustGetExe() from Lib/v2/AHK_Common.ahk, with a System32 fallback) and running using the resolved full path, and/or wrapping the Run() calls in try/catch so a transient failure doesn’t terminate the persistent loop.