[BUG] High energy consumption on macOS

[orlandommb]

Describe the Issue

result from command code -status:
`Version: Code 1.96.4 (cd4ee3b1c348a13bafd8f9ad8060705f6d4b9cba, 2025-01-16T00:16:19.038Z)
OS Version: Darwin arm64 24.2.0
CPUs: Apple M1 Pro (8 x 2400)
Memory (System): 16.00GB (0.09GB free)
Load (avg): 7, 6, 4
VM: 0%
Screen Reader: no
Process Argv: --crash-reporter-id a61d8841-dc3f-4d9d-917e-d56ff42ebb1b
GPU Status: 2d_canvas: enabled
canvas_oop_rasterization: enabled_on
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgl2: enabled
webgpu: enabled
webnn: disabled_off

CPU % Mem MB PID Process
1 197 8906 code main
0 66 8909 gpu-process
0 33 8910 utility-network-service
74 672 8912 window [1] (KoneksiServices.cs — AlphaSoftMedicPOS)
2 147 8924 shared-process
0 49 8927 ptyHost
0 0 9766 /bin/zsh -il
22 672 9764 extensionHost [1]
138 475 9869 /usr/local/share/dotnet/dotnet /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.razor/rzls.dll --logLevel 3 --DelegateToCSharpOnDiagnosticPublish true --UpdateBuffersForClosedDocuments true --SingleServerCompletionSupport true --telemetryLevel all --sessionId fb98423f-11c6-4182-81e2-36f82fcdec8b1738776161252 --telemetryExtensionPath /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.razorDevKit/Microsoft.VisualStudio.DevKit.Razor.dll
73 1343 9899 /usr/local/share/dotnet/dotnet /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.roslyn/Microsoft.CodeAnalysis.LanguageServer.dll --logLevel Information --razorSourceGenerator /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.razor/Microsoft.CodeAnalysis.Razor.Compiler.dll --razorDesignTimePath /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.razor/Targets/Microsoft.NET.Sdk.Razor.DesignTime.targets --starredCompletionComponentPath /Users/macbookpro/.vscode/extensions/ms-dotnettools.vscodeintellicode-csharp-2.2.3-darwin-arm64/components/starred-suggestions/platforms/darwin-arm64/node_modules/@vsintellicode/starred-suggestions-csharp.darwin-arm64 --devKitDependencyPath /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.roslynDevKit/Microsoft.VisualStudio.LanguageServices.DevKit.dll --sessionId fb98423f-11c6-4182-81e2-36f82fcdec8b1738776161252 --extension /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.xamlTools/Microsoft.VisualStudio.DesignTools.CodeAnalysis.dll --extension /Users/macbookpro/.vscode/extensions/ms-dotnettools.csharp-2.61.28-darwin-arm64/.xamlTools/Microsoft.VisualStudio.DesignTools.CodeAnalysis.Diagnostics.dll --telemetryLevel all --extensionLogDirectory /Users/macbookpro/Library/Application Support/Code/logs/20250205T130606/window1/exthost/ms-dotnettools.csharp
6 180 9900 electron-nodejs (config.js )
0 115 9927 /Users/macbookpro/.vscode/extensions/ms-dotnettools.csdevkit-1.16.6-darwin-arm64/components/vs-green-server/platforms/darwin-arm64/node_modules/@microsoft/servicehub-controller-net60.darwin-arm64/Microsoft.ServiceHub.Controller 4f54ebca0b /ControllerCooldownTimeout:30000 /TelemetrySession:{"TelemetryLevel":"all","IsOptedIn":false,"HostName":"Default","AppInsightsInstrumentationKey":null,"AsimovInstrumentationKey":null,"CollectorApiKey":"0c6ae279ed8443289764825290e4f9e2-1a736e7c-1324-4338-be46-fc2a58ae4d14-7255","AppId":1010,"UserId":"eb77ed3b-5c5f-4786-9913-d078eca2f865","Id":"fb98423f-11c6-4182-81e2-36f82fcdec8b1738776161252","ProcessStartTime":133832497649066370,"SkuName":null,"VSExeVersion":null,"BucketFiltersToEnableWatsonForFaults":[],"BucketFiltersToAddDumpsToFaults":[]}
5 311 9950 /Users/macbookpro/.vscode/extensions/ms-dotnettools.csdevkit-1.16.6-darwin-arm64/components/vs-green-server/platforms/darwin-arm64/node_modules/@microsoft/visualstudio-code-servicehost.darwin-arm64/Microsoft.VisualStudio.Code.ServiceHost dotnet.projectSystem$C94B8CFE-E3FD-4BAF-A941-2866DBB566FE net.pipe://9927B227DA /TelemetrySession:{"TelemetryLevel":"all","IsOptedIn":false,"HostName":"Default","AppInsightsInstrumentationKey":null,"AsimovInstrumentationKey":null,"CollectorApiKey":"0c6ae279ed8443289764825290e4f9e2-1a736e7c-1324-4338-be46-fc2a58ae4d14-7255","AppId":1010,"UserId":"eb77ed3b-5c5f-4786-9913-d078eca2f865","Id":"fb98423f-11c6-4182-81e2-36f82fcdec8b1738776161252","ProcessStartTime":133832497649066370,"SkuName":null,"VSExeVersion":null,"BucketFiltersToEnableWatsonForFaults":[],"BucketFiltersToAddDumpsToFaults":[]}
0 115 9980 /usr/local/share/dotnet/dotnet /Users/macbookpro/.vscode/extensions/ms-dotnettools.csdevkit-1.16.6-darwin-arm64/components/CPS/platforms/darwin-arm64/node_modules/@microsoft/visualstudio-projectsystem-buildhost.darwin-arm64/Microsoft.VisualStudio.ProjectSystem.Server.BuildHost.dll
0 164 9952 /Users/macbookpro/.vscode/extensions/ms-dotnettools.csdevkit-1.16.6-darwin-arm64/components/vs-green-server/platforms/darwin-arm64/node_modules/@microsoft/visualstudio-code-servicehost.darwin-arm64/Microsoft.VisualStudio.Code.ServiceHost dotnet$C94B8CFE-E3FD-4BAF-A941-2866DBB566FE net.pipe://9927B227DA /TelemetrySession:{"TelemetryLevel":"all","IsOptedIn":false,"HostName":"Default","AppInsightsInstrumentationKey":null,"AsimovInstrumentationKey":null,"CollectorApiKey":"0c6ae279ed8443289764825290e4f9e2-1a736e7c-1324-4338-be46-fc2a58ae4d14-7255","AppId":1010,"UserId":"eb77ed3b-5c5f-4786-9913-d078eca2f865","Id":"fb98423f-11c6-4182-81e2-36f82fcdec8b1738776161252","ProcessStartTime":133832497649066370,"SkuName":null,"VSExeVersion":null,"BucketFiltersToEnableWatsonForFaults":[],"BucketFiltersToAddDumpsToFaults":[]}
0 49 9947 electron-nodejs (eslintServer.js )
1 115 9949 /Applications/Visual Studio Code.app/Contents/Frameworks/Code Helper (Plugin).app/Contents/MacOS/Code Helper (Plugin) /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/html-language-features/server/dist/node/htmlServerMain --node-ipc --clientProcessId=9764
0 66 9765 fileWatcher [1]

Workspace Stats:
| Window (KoneksiServices.cs — AlphaSoftMedicPOS)
| Folder (AlphaSoftMedicPOS): 1055 files
| File types: cs(578) razor(146) cshtml(15) json(14) css(14) cache(12)
| jpg(8) sql(7) png(5) dll(4)
| Conf files: csproj(2) launch.json(1) settings.json(1) tasks.json(1)
| sln(1)`

and this is the energy consumption from activity monitor:

Steps To Reproduce

open any project with asp.net core blazor on vs code (with c# and c# dev kit extensions installed)

Expected Behavior

No response

Environment Information

-OS: MacOS sequoia 15.2
-VS Code Version: 1.96.4 (Universal)

• Extensions: C# Dev Kit, C#, .NET Install tool

[AllenD-MSFT]

It doesn't look like this is specific to MAUI since the customer mentioned ASP.NET Core Blazor.

[GregCilio]

I have been experiencing this same issue when working with our Blazor web app on a MacBook Air M2. I started disabling extensions to try and find if one of them was the cause, and after I disabled C# the battery drain stopped. If it helps, I noticed output in the Problems pane constantly changing, indefinitely, almost as if it kept recompiling/analyzing the codebase.

[orlandommb]

I have been experiencing this same issue when working with our Blazor web app on a MacBook Air M2. I started disabling extensions to try and find if one of them was the cause, and after I disabled C# the battery drain stopped. If it helps, I noticed output in the Problems pane constantly changing, indefinitely, almost as if it kept recompiling/analyzing the codebase.

it definitely stopped consuming battery, I made a video but its looks like too large to be uploaded.

@AllenD-MSFT this confirms it.

[orlandommb]

@AllenD-MSFT @GregCilio here's the video, had to export it to 720p:

C.Extension.high.energy.consumption720p.mov

[orlandommb]

#1740 seems like this issue is related

[orlandommb]

Edit and removed the .net maui part.