refactor: add benchmarker

alt-tab-macos.xcodeproj/project.pbxproj

@@ -76,6 +76,7 @@
 		5F791E4B2F1C65E100B6419C /* ApplicationDiscriminator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5F791E4A2F1C65E100B6419C /* ApplicationDiscriminator.swift */; };
 		5F882F382EC3C63400110A9F /* CustomRecorderControlTestable.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF0C8DC2A355E29516DD2FAF /* CustomRecorderControlTestable.swift */; };
 		5F906A342F16A18500B99924 /* Screens.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5F906A332F16A18000B99924 /* Screens.swift */; };
+		5FBB24D32F389A0400BF7E14 /* Benchmark.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5FBB24D22F389A0400BF7E14 /* Benchmark.swift */; };
 		5FEFDF2F2F181E120065BAA3 /* Localizable.strings in Resources */ = {isa = PBXBuildFile; fileRef = 5FEFDF2D2F181E120065BAA3 /* Localizable.strings */; };
 		5FEFDF322F181E250065BAA3 /* InfoPlist.strings in Resources */ = {isa = PBXBuildFile; fileRef = 5FEFDF312F181E250065BAA3 /* InfoPlist.strings */; };
 		76D02BB22BFE7C9E0056008D /* Pods_alt_tab_macos.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = C0712B3BEA2B3780398C0999 /* Pods_alt_tab_macos.framework */; };
@@ -383,6 +384,7 @@
 		5F906A332F16A18000B99924 /* Screens.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Screens.swift; sourceTree = "<group>"; };
 		5F9F965C2EAE731200E25498 /* jetbrains.svg */ = {isa = PBXFileReference; lastKnownFileType = text; path = jetbrains.svg; sourceTree = "<group>"; };
 		5FAE000A2F13B49800FE6246 /* update_readme_and_website.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = update_readme_and_website.sh; sourceTree = "<group>"; };
+		5FBB24D22F389A0400BF7E14 /* Benchmark.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Benchmark.swift; sourceTree = "<group>"; };
 		5FE2AF752EAE849F004A4AC5 /* xcbeautify */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.executable"; path = xcbeautify; sourceTree = "<group>"; };
 		5FEFDF2C2F181E120065BAA3 /* be */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = be; path = Localizable.strings; sourceTree = "<group>"; };
 		5FEFDF302F181E250065BAA3 /* InfoPlist.strings */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; path = InfoPlist.strings; sourceTree = "<group>"; };
@@ -1336,6 +1338,7 @@
 		D04BA0D80B24E72B9B981A1D /* logic */ = {
 			isa = PBXGroup;
 			children = (
+				5FBB24D22F389A0400BF7E14 /* Benchmark.swift */,
 				5F17452D2F1A907800128EF8 /* WindowDiscriminator.swift */,
 				5F791E4A2F1C65E100B6419C /* ApplicationDiscriminator.swift */,
 				5F906A332F16A18000B99924 /* Screens.swift */,
@@ -2493,6 +2496,7 @@
 				5F906A342F16A18500B99924 /* Screens.swift in Sources */,
 				D04BA0AE9865276FF8EF5DEB /* UserDefaultsEvents.swift in Sources */,
 				D04BA4A11F821548EE3C5E95 /* Bash.swift in Sources */,
+				5FBB24D32F389A0400BF7E14 /* Benchmark.swift in Sources */,
 				5F21C9E62C6E94920091F72F /* AnimationsSheet.swift in Sources */,
 				D04BAFB90E00AA5D662EAF24 /* PermissionsWindow.swift in Sources */,
 				D04BA7E39FA539DD8316447A /* PermissionView.swift in Sources */,

src/logic/Benchmark.swift

@@ -0,0 +1,74 @@
+import Foundation
+
+final class BenchmarkRunner {
+    static let launchDuration = 10000
+    static let startupDelay = 5000
+    static let showDuration = 500
+    static let hideDuration = 500
+    static let shortcutIndex = 0
+    private static var config: BenchmarkConfig?
+    private static var remainingCycles = 0
+
+    static func configureFromArgs(_ args: [String]) {
+        config = BenchmarkConfig.parse(args)
+    }
+
+    static func startIfNeeded() {
+        guard let config else { return }
+        switch config.mode {
+        case .launch:
+            scheduleTerminate(after: launchDuration)
+        case .showUi(let count):
+            remainingCycles = count
+            scheduleShow(after: startupDelay)
+        }
+    }
+
+    private static func scheduleShow(after delay: Int) {
+        guard remainingCycles > 0 else { scheduleTerminate(after: hideDuration); return }
+        DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(delay)) {
+            App.app.showUi(shortcutIndex)
+            scheduleHide(after: showDuration)
+        }
+    }
+
+    private static func scheduleHide(after delay: Int) {
+        DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(delay)) {
+            App.app.hideUi()
+            remainingCycles -= 1
+            scheduleShow(after: hideDuration)
+        }
+    }
+
+    private static func scheduleTerminate(after delay: Int) {
+        DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(delay)) {
+            App.shared.terminate(nil)
+        }
+    }
+}
+
+struct BenchmarkConfig {
+    enum Mode {
+        case launch
+        case showUi(Int)
+    }
+
+    let mode: Mode
+
+    static func parse(_ args: [String]) -> BenchmarkConfig? {
+        guard let index = args.firstIndex(of: "--benchmark"), index + 1 < args.count else { return nil }
+        let mode = args[index + 1]
+        if mode == "launch" { return BenchmarkConfig(mode: .launch) }
+        if mode == "showUi" { return parseShowUi(args, index) }
+        print("Unsupported benchmark mode: \(mode)")
+        return nil
+    }
+
+    private static func parseShowUi(_ args: [String], _ index: Int) -> BenchmarkConfig? {
+        guard index + 2 < args.count, let count = Int(args[index + 2]), count > 0 else {
+            print("Invalid benchmark showUi count")
+            return nil
+        }
+        return BenchmarkConfig(mode: .showUi(count))
+    }
+}

src/ui/App.swift

@@ -224,15 +224,16 @@ class App: AppCenterApplication {
     }
 
     func refreshOpenUiWithThrottling( _ block: @escaping () -> Void) {
+        let throttleDelayInMs = 200
         let timeSinceLastRefreshInSeconds = Float(DispatchTime.now().uptimeNanoseconds - lastRefreshTimeInNanoseconds) / 1_000_000
-        if timeSinceLastRefreshInSeconds >= 200 {
+        if timeSinceLastRefreshInSeconds >= Float(throttleDelayInMs) {
             lastRefreshTimeInNanoseconds = DispatchTime.now().uptimeNanoseconds
             block()
             return
         }
         guard !nextRefreshScheduled else { return }
         nextRefreshScheduled = true
-        DispatchQueue.main.asyncAfter(deadline: .now() + 0.210) {
+        DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(throttleDelayInMs + 10)) {
             self.nextRefreshScheduled = false
             self.refreshOpenUiWithThrottling(block)
         }
@@ -343,6 +344,7 @@ extension App: NSApplicationDelegate {
         // login item and plist updates can be done a bit later, to accelerate launch
         DispatchQueue.main.asyncAfter(deadline: .now() + 2) { GeneralTab.startAtLoginCallback() }
         Logger.info { "Finished launching AltTab" }
+        BenchmarkRunner.startIfNeeded()
         #if DEBUG
 //            self.showPreferencesWindow()
         #endif