用 Gitlab CI 建置自動化編譯 Unity 專案流程，在 Runner 註冊為服務時，若專案過大可能會發生任務卡住的問題
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CD C:\GitLab-Runner
.\gitlab-runner.exe install
.\gitlab-runner.exe start
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若用直接執行的方式執行 Job 就不會卡住
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CD C:\GitLab-Runner
.\gitlab-runner.exe run
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卡住之後查看 Unity Editor Log，發現有異常訊息 Failed to get socket connection from UnityShaderCompiler.exe shader compiler!
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Failed to get socket connection from UnityShaderCompiler.exe shader compiler! C:/Program Files/Unity/Editor/Data/Tools/UnityShaderCompiler.exe
UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck(String[], String, String, BuildTargetGroup, BuildTarget, BuildOptions, Boolean)
UnityEditor.BuildPipeline:BuildPlayerInternal(String[], String, String, BuildTargetGroup, BuildTarget, BuildOptions) (at C:\buildslave\unity\build\Editor\Mono\BuildPipeline.bindings.cs:358)
UnityEditor.BuildPipeline:BuildPlayer(String[], String, String, BuildTargetGroup, BuildTarget, BuildOptions) (at C:\buildslave\unity\build\Editor\Mono\BuildPipeline.bindings.cs:257)
UnityEditor.BuildPipeline:BuildPlayer(BuildPlayerOptions) (at C:\buildslave\unity\build\Editor\Mono\BuildPipeline.bindings.cs:240)
[C:\buildslave\unity\build\Tools/UnityShaderCompiler/ShaderCompilerClient.cpp line 290]
(Filename: Assets/xxxx.cs Line: 218)
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發生原因
根據這邊提到的，Service 的 Desktop heap 比較小，所以有可能在編譯大專案的時候資源不足讓程式卡住
解法
調大 non-interactive (services) sessions 的 heap
- 用 Administrator 執行 regedit.exe
- 編輯
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\SubSystems\Windows
- 找到
SharedSection=1024,20480,768，調整第三組數字
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- SharedSection=1024,20480,768
+ SharedSection=1024,20480,2048
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Reference