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Trimmed TODO

What is this?

An exploration of .NET 7 trimming on a various simple apps including a TODO app using ASP.NET Core and Entity Framework Core.

Read more about trimming in .NET apps in the official docs.

Requirements

This solution currently uses a daily .NET 7 SDK main build (see exact min-version required in the global.json). You can grab such a build from the installer repo.

Running

From the repo root, run one of the PowerShell scripts to publish and run the various apps.

> .\Run-TodoConsole.ps1
Cleaning up previous run
Publishing TrimmedTodo.Console.EfCore.Sqlite: dotnet publish -c Release -r win10-x64 --self-contained
  Determining projects to restore...
  Restored ~\TrimmedTodo\src\TrimmedTodo.Console.EfCore.Sqlite\TrimmedTodo.Console.EfCore.Sqlite.csproj (i
  n 194 ms).
C:\Program Files\dotnet\sdk\7.0.100-preview.7.22351.2\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.RuntimeIdentifierInference.target
s(219,5): message NETSDK1057: You are using a preview version of .NET. See: https://aka.ms/dotnet-support-policy [~\TrimmedTodo\src\TrimmedTodo.Console.EfCore.Sqlite\TrimmedTodo.Console.EfCore.Sqlite.csproj]
  TrimmedTodo.Console.EfCore.Sqlite -> ~\TrimmedTodo\src\TrimmedTodo.Console.EfCore.Sqlite\bin\Release\net7.0\win-x64\TrimmedTodo.Console.EfCore.Sqlite.dll
  Optimizing assemblies for size. This process might take a while.
  TrimmedTodo.Console.EfCore.Sqlite -> ~\TrimmedTodo\.artifacts\TrimmedTodo.Console.EfCore.Sqlite\

App was published as a single 21.78 MB file (TrimmedTodo.Console.EfCore.Sqlite.exe)

App last access time: 08/30/2022 17:30:13

Running TrimmedTodo.Console.EfCore.Sqlite

Ensuring database exists and is up to date at connection string 'Data Source=todos.db'

There are currently no todos!

Added todo 1
Added todo 2
Added todo 3

Id Title
----------------------
1  Do the groceries
2  Give the dog a bath
2  Wash the car

Todo 'Wash the car' completed!

Id Title
----------------------
1  Do the groceries
2  Give the dog a bath

Deleted all 3 todos!
>

App execution times, size, and memory use after publishing

  • Results taken on Windows 11 x64
  • All apps are published using "Release" configuration
  • Only trimming modes that result in the app still working are shown
  • Execution time measures time for the app to run (startup, execute, close). Web apps are configured to send a request to themselves on startup and then shut themselves down when being measured.
Project PublishKind Execution App Size App Memory
HelloWorld.Console SelfContained 35.71 ms 69.45 MB NA
HelloWorld.Console Trimmed 33.97 ms 11.05 MB NA
HelloWorld.Console TrimmedCompressed 43.46 ms 9.82 MB
HelloWorld.Console TrimmedReadyToRun 26.34 ms 14.27 MB NA
HelloWorld.Console TrimmedReadyToRunCompressed 47.07 ms 11.40 MB
HelloWorld.Console AOT 10.17 ms 0.97 MB NA
HelloWorld.HttpListener SelfContained 117.83 ms 69.46 MB 32.03 MB
HelloWorld.HttpListener Trimmed 275.14 ms 12.96 MB 27.11 MB
HelloWorld.HttpListener TrimmedCompressed 287.67 ms 10.62 MB 27.20 MB
HelloWorld.HttpListener TrimmedReadyToRun 96.63 ms 20.36 MB 26.02 MB
HelloWorld.HttpListener TrimmedReadyToRunCompressed 131.53 ms 14.05 MB 35.07 MB
HelloWorld.HttpListener AOT 55.04 ms 8.72 MB 14.59 MB
HelloWorld.Web SelfContained 233.89 ms 94.23 MB 50.56 MB
HelloWorld.Web Trimmed 507.58 ms 17.28 MB 40.39 MB
HelloWorld.Web TrimmedCompressed 562.42 ms 12.33 MB 42.58 MB
HelloWorld.Web TrimmedReadyToRun 158.79 ms 37.93 MB 43.45 MB
HelloWorld.Web TrimmedReadyToRunCompressed 260.63 ms 20.85 MB 67.05 MB
HelloWorld.Web AOT 72.97 ms 21.86 MB 36.15 MB
HelloWorld.Web.Stripped SelfContained 173.00 ms 94.23 MB 40.77 MB
HelloWorld.Web.Stripped Trimmed 348.29 ms 14.49 MB 32.32 MB
HelloWorld.Web.Stripped TrimmedCompressed 393.29 ms 11.21 MB 33.89 MB
HelloWorld.Web.Stripped TrimmedReadyToRun 118.70 ms 25.01 MB 33.15 MB
HelloWorld.Web.Stripped TrimmedReadyToRunCompressed 186.30 ms 15.88 MB 47.11 MB
HelloWorld.Web.Stripped AOT 51.85 ms 12.22 MB 20.92 MB
HelloWorld.KestrelDirect SelfContained 191.51 ms 93.88 MB 42.07 MB
HelloWorld.KestrelDirect Trimmed 332.89 ms 13.93 MB 32.30 MB
HelloWorld.KestrelDirect TrimmedCompressed 328.37 ms 10.98 MB 32.36 MB
HelloWorld.KestrelDirect TrimmedReadyToRun 128.09 ms 23.20 MB 32.77 MB
HelloWorld.KestrelDirect TrimmedReadyToRunCompressed 165.78 ms 15.19 MB 43.38 MB
HelloWorld.KestrelDirect AOT 60.37 ms 11.16 MB 18.58 MB
TrimmedTodo.Console.EfCore.Sqlite SelfContained 508.1 ms 75.78 MB NA
TrimmedTodo.Console.EfCore.Sqlite Trimmed 740.5 ms 20.78 MB NA
TrimmedTodo.Console.EfCore.Sqlite TrimmedCompressed 772.5 ms 13.39 MB NA
TrimmedTodo.Console.EfCore.Sqlite TrimmedReadyToRun 249.0 ms 48.85 MB NA
TrimmedTodo.Console.EfCore.Sqlite TrimmedReadyToRunCompressed 368.3 ms 25.42 MB NA
TrimmedTodo.MinimalApi.Dapper.Sqlite SelfContained 385.4 ms 101.19 MB 68.15 MB
TrimmedTodo.MinimalApi.Dapper.Sqlite Trimmed 935.4 ms 32.05 MB 60.37 MB
TrimmedTodo.MinimalApi.Dapper.Sqlite TrimmedCompressed 1,066.9 ms 17.81 MB 72.09 MB
TrimmedTodo.MinimalApi.Dapper.Sqlite TrimmedReadyToRun 286.4 ms 69.05 MB 65.18 MB
TrimmedTodo.MinimalApi.Dapper.Sqlite TrimmedReadyToRunCompressed 531.6 ms 33.41 MB 119.33 MB
TrimmedTodo.MinimalApi.EfCore.Sqlite SelfContained 644.8 ms 104.78 MB 80.48 MB
TrimmedTodo.MinimalApi.EfCore.Sqlite Trimmed 1,213.2 ms 36.29 MB 72.39 MB
TrimmedTodo.MinimalApi.EfCore.Sqlite TrimmedCompressed 1,299.7 ms 19.21 MB 84.96 MB
TrimmedTodo.MinimalApi.EfCore.Sqlite TrimmedReadyToRun 389.6 ms 81.73 MB 78.93 MB
TrimmedTodo.MinimalApi.EfCore.Sqlite TrimmedReadyToRunCompressed 623.0 ms 38.40 MB 143.16 MB
TrimmedTodo.MinimalApi.Sqlite SelfContained 370.1 ms 101.00 MB 66.36 MB
TrimmedTodo.MinimalApi.Sqlite Trimmed 929.8 ms 31.82 MB 58.97 MB
TrimmedTodo.MinimalApi.Sqlite TrimmedCompressed 983.5 ms 17.70 MB 70.68 MB
TrimmedTodo.MinimalApi.Sqlite TrimmedReadyToRun 297.6 ms 68.33 MB 63.72 MB
TrimmedTodo.MinimalApi.Sqlite TrimmedReadyToRunCompressed 488.2 ms 33.10 MB 118.69 MB
TrimmedTodo.WebApi.EfCore.Sqlite SelfContained 728.9 ms 105.10 MB 85.73 MB
TrimmedTodo.WebApi.EfCore.Sqlite Trimmed 1,303.2 ms 39.48 MB 77.83 MB
TrimmedTodo.WebApi.EfCore.Sqlite TrimmedCompressed 1,543.9 ms 20.54 MB 90.39 MB
TrimmedTodo.WebApi.EfCore.Sqlite TrimmedReadyToRun 423.3 ms 86.26 MB 84.92 MB
TrimmedTodo.WebApi.EfCore.Sqlite TrimmedReadyToRunCompressed 735.9 ms 40.16 MB 152.25 MB