⚡ Optimize Citra_3DS_Manager performance with SetBatchLines -1

[Ven0m0]

💡 What: Added SetBatchLines, -1 to the auto-execute section of Citra_3DS_Manager.ahk.

🎯 Why: By default, AutoHotkey v1 scripts sleep for 10ms every 10ms of execution. This optimization removes that artificial delay, allowing the script to execute at full CPU speed.

📊 Measured Improvement:
Due to the Linux environment lacking Wine/AutoHotkey execution capabilities, a runtime benchmark was not possible. However, SetBatchLines, -1 is a standard, well-documented optimization for AHK v1 that typically results in significant speed improvements (often >100%) for CPU-bound tasks like string processing and loops, which are prevalent in this script's parsing logic.

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PR created automatically by Jules for task 8765740010265019608 started by @Ven0m0

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[gemini-code-assist]

Summary of Changes

Hello @Ven0m0, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the performance of the Citra_3DS_Manager.ahk script by implementing a standard AutoHotkey v1 optimization. By disabling an inherent execution delay, the script can now leverage full CPU speed, particularly benefiting CPU-bound tasks like string processing and loops. The change is accompanied by new documentation detailing its rationale and expected performance gains, even though direct benchmarks were not possible in the current environment.

Highlights

• Performance Optimization: The Citra_3DS_Manager.ahk script has been optimized by adding SetBatchLines, -1 to its auto-execute section. This change removes the default 10ms sleep delay that AutoHotkey v1 scripts typically introduce, allowing the script to run at full CPU speed.
• Documentation Added: A new markdown file, PERFORMANCE_RATIONALE.md, has been added to explain the purpose, impact, and expected benefits of the SetBatchLines, -1 optimization. It clarifies why this change is made and its anticipated performance improvements.

Changelog

• Other/Citra_mods/Citra_3DS_Manager.ahk
  • Added SetBatchLines, -1 to the auto-execute section to disable the default 10ms execution delay and improve script performance.
• Other/Citra_mods/PERFORMANCE_RATIONALE.md
  • New file created to document the SetBatchLines, -1 performance optimization, explaining its purpose, impact, and why it's beneficial for AutoHotkey v1 scripts.

Activity

• The pull request was automatically generated by Jules for a task initiated by @Ven0m0.
• The author noted that direct runtime benchmarks were not feasible due to the current Linux environment lacking Wine/AutoHotkey execution capabilities, but highlighted that SetBatchLines, -1 is a well-documented optimization for AHK v1.

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[gemini-code-assist]

Code Review

This pull request introduces a standard AutoHotkey performance optimization by adding SetBatchLines, -1. The change is correct and will improve script execution speed. My review includes two suggestions to improve long-term maintainability: first, to add a comment to the code explaining this optimization, and second, to reconsider the addition of a separate rationale file, suggesting to move its content into a code comment instead to reduce repository clutter.

[gemini-code-assist]

This is a great performance optimization. To improve code clarity and maintainability, it would be beneficial to add a comment explaining the purpose of SetBatchLines, -1. This helps future developers understand this non-obvious performance tweak without needing to look up the documentation.

For example:

; Run script at maximum speed. This removes the default artificial delay,
; significantly improving performance for CPU-bound tasks like loops and string processing.
SetBatchLines, -1

[gemini-code-assist]

While the explanation here is excellent, adding a separate documentation file for a single-line optimization can add clutter to the project's file structure. This kind of specific, localized documentation is often more effective and maintainable as a code comment directly next to the line it describes (as suggested for Citra_3DS_Manager.ahk). The git commit history also serves as a record for the 'why'. Consider removing this file and incorporating a summary into a code comment to keep the repository clean.

[Copilot]

Pull request overview

This PR attempts to optimize the performance of Citra_3DS_Manager.ahk by adding the SetBatchLines, -1 directive to disable AutoHotkey v1's default line-execution throttling behavior. However, the script uses AutoHotkey v1 syntax, which conflicts with the repository's coding guidelines that mandate AutoHotkey v2.x exclusively.

Changes:

• Added SetBatchLines, -1 to the auto-execute section of Citra_3DS_Manager.ahk
• Created PERFORMANCE_RATIONALE.md documenting the rationale for the optimization

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
Other/Citra_mods/Citra_3DS_Manager.ahk	Adds SetBatchLines, -1 directive to remove execution throttling in v1 script
Other/Citra_mods/PERFORMANCE_RATIONALE.md	Documents the performance optimization rationale, though with technical inaccuracies

[Copilot]

This script uses AutoHotkey v1 syntax, which violates the repository's coding guidelines that mandate targeting AutoHotkey v2.x syntax exclusively. The repository contains v2 versions of similar Citra scripts (see Other/Citra_per_game_config/v2/), establishing a clear pattern for migration. Consider migrating this script to v2 syntax, which would include:

• Adding #Requires AutoHotkey v2.0 directive
• Using SetBatchLines(-1) function syntax instead of SetBatchLines, -1 command syntax
• Converting other v1 commands to v2 function syntax (e.g., Loop Read to Loop Read(), FileExist to FileExist())
• Updating variable references from %var% to expression syntax

Reference: Repository guideline 1000002 explicitly requires v2 syntax.

[Copilot]

The description of SetBatchLines behavior is technically inaccurate. AutoHotkey v1 doesn't "sleep for 10ms after every 10ms of execution" - it sleeps for 10ms after every 10 lines of execution (by default). The default value is SetBatchLines, 20, meaning the script pauses for 10ms after every 20 lines executed, not based on time elapsed. This is an important distinction as it clarifies why -1 (never pause) provides the performance benefit.

Suggested change

	**Why:** By default, AutoHotkey scripts sleep for 10ms after every 10ms of execution to avoid monopolizing the CPU. This behavior, while friendly to single-core systems of the past, introduces significant latency in loops and string processing tasks.
	**Why:** By default, AutoHotkey v1 uses `SetBatchLines, 20`, which makes the script sleep for 10ms after every 20 lines of execution to avoid monopolizing the CPU. This behavior, while friendly to single-core systems of the past, introduces significant latency in loops and string processing tasks.

[Copilot]

The statement "By default, AutoHotkey v1 scripts sleep for 10ms every 10ms of execution" is technically inaccurate. The default behavior is SetBatchLines, 20 (not 10), which means the script pauses for 10ms after every 20 lines executed, not based on elapsed time. Also, in AutoHotkey v2 (which this repository's guidelines mandate), SetBatchLines has been removed entirely - scripts run at full speed by default, making this optimization unnecessary in v2.

Suggested change

	**Change:** Added `SetBatchLines, -1` to the auto-execute section of `Citra_3DS_Manager.ahk`.
	**Why:** By default, AutoHotkey scripts sleep for 10ms after every 10ms of execution to avoid monopolizing the CPU. This behavior, while friendly to single-core systems of the past, introduces significant latency in loops and string processing tasks.
	**Impact:** `SetBatchLines, -1` disables this sleep behavior, allowing the script to run as fast as possible. This is particularly effective for:
	- `Loop, Read` (file reading)
	- `Loop, Files` (file scanning)
	- String manipulation (RegEx, parsing)
	**Measurement Note:** Due to the current Linux environment lacking a Windows execution compatibility layer (Wine) for AutoHotkey, a direct runtime benchmark could not be performed. However, this is a standard and well-documented optimization for AHK v1 scripts, with expected speedups of 100% or more in tight loops.
	**Change (legacy AHK v1 script):** Added `SetBatchLines, -1` to the auto-execute section of `Citra_3DS_Manager.ahk`.
	**Why:** In AutoHotkey v1, the default setting is `SetBatchLines, 20`, which makes the script pause for 10ms after every 20 lines of code are executed to avoid monopolizing the CPU. This behavior, while friendly to single-core systems of the past, introduces significant latency in tight loops and string processing tasks.
	**Impact (AHK v1):** `SetBatchLines, -1` disables this pause behavior in v1, allowing the script to run as fast as possible. This is particularly effective for:
	- `Loop, Read` (file reading)
	- `Loop, Files` (file scanning)
	- String manipulation (RegEx, parsing)
	**AHK v2 Note:** AutoHotkey v2 removed `SetBatchLines`; scripts already run at full speed by default. This optimization is therefore only relevant for legacy v1 versions of the script and should not be added to v2 code.
	**Measurement Note:** Due to the current Linux environment lacking a Windows execution compatibility layer (Wine) for AutoHotkey, a direct runtime benchmark of the v1 behavior could not be performed. However, this is a standard and well-documented optimization for AHK v1 scripts, with expected speedups of 100% or more in tight loops.