Enable lazy loading of AOTd assemblies #6940
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grendello
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jonpryor,
dellis1972 and
jonathanpeppers
as code owners
Yep, I will time it in a few, want to fix the test failures first |
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Unfortunately, enabling the feature for 64-bit targets results in this Mono runtime abort: |
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@lambdageek @vargaz ideas about the issue above? Should we just file an issue on dotnet/runtime? |
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@jonathanpeppers I already talked to @vargaz, we'll continue tomorrow :) |
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Please don't merge until #6946 is in and I can rebase this PR on it |
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Apr 22, 2022
Fixes: dotnet#6935 Context: dotnet/runtime#67024 Add support for enabling lazy loading of AOTd assemblies and their associated shared libraries, when targetting .NET6+. The feature is enabled by default when AOT is enabled for `Release` builds and can be disabled by setting the new `$(AndroidAotEnableLazyLoad)` MSBuild property to `false`.
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Fixes: https://github.com/xamarin/xamarin-android/issues/6935
Context: https://github.com/dotnet/runtime/pull/67024
Add support for enabling lazy loading of AOTd assemblies and their
associated shared libraries, when targeting .NET6+.
The feature is enabled by default when AOT is enabled for `Release`
builds and can be disabled by setting the new
`$(AndroidAotEnableLazyLoad)` MSBuild property to `false`.
Performance gains are obvious, but their scale depends on where we look.
Results of running a Hello World MAUI app on Pixel 6 Pro, with:
See PR for full timing details.
With:
* `$(RuntimeIdentifier)`=android-arm64
* `$(AndroidEnablePreloadAssemblies)`=False
* `$(AndroidUseAssemblyStore)`=True, `$(AndroidEnableAssemblyCompression)`=True
| Scenario | Before | After | Δ |
| ------------------------------------- | --------: | --------: | --------: |
| `ActivityTaskManager: Displayed` time | 367.800 | 368.200 | +0.11% ✗ |
| `JNIEnv.Initialize()` time | 6.221 | 5.367 | -13.73% ✓ |
| Total native init time | 39.047 | 20.395 | -47.77% ✓ |
With:
* `$(RuntimeIdentifier)`=android-arm
* `$(AndroidEnablePreloadAssemblies)`=True
* `$(AndroidUseAssemblyStore)`=True, `$(AndroidEnableAssemblyCompression)`=True
| Scenario | Before | After | Δ |
| ------------------------------------- | --------: | --------: | --------: |
| `ActivityTaskManager: Displayed` time | 490.600 | 475.000 | -3.18% ✓ |
| `JNIEnv.Initialize()` time | 8.602 | 7.787 | -9.48% ✓ |
| Total native init time | 47.726 | 27.156 | -43.10% ✓ | |
jonathanpeppers
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Apr 25, 2022
Backports: dotnet#6940 Fixes: dotnet#6935 Context: dotnet/runtime#67024 Add support for enabling lazy loading of AOTd assemblies and their associated shared libraries, when targeting .NET6+. The feature is enabled by default when AOT is enabled for `Release` builds and can be disabled by setting the new `$(AndroidAotEnableLazyLoad)` MSBuild property to `false`. Performance gains are obvious, but their scale depends on where we look. Results of running a Hello World MAUI app on Pixel 6 Pro, with: See PR for full timing details. With: * `$(RuntimeIdentifier)`=android-arm64 * `$(AndroidEnablePreloadAssemblies)`=False * `$(AndroidUseAssemblyStore)`=True, `$(AndroidEnableAssemblyCompression)`=True | Scenario | Before | After | Δ | | ------------------------------------- | --------: | --------: | --------: | | `ActivityTaskManager: Displayed` time | 367.800 | 368.200 | +0.11% ✗ | | `JNIEnv.Initialize()` time | 6.221 | 5.367 | -13.73% ✓ | | Total native init time | 39.047 | 20.395 | -47.77% ✓ | With: * `$(RuntimeIdentifier)`=android-arm * `$(AndroidEnablePreloadAssemblies)`=True * `$(AndroidUseAssemblyStore)`=True, `$(AndroidEnableAssemblyCompression)`=True | Scenario | Before | After | Δ | | ------------------------------------- | --------: | --------: | --------: | | `ActivityTaskManager: Displayed` time | 490.600 | 475.000 | -3.18% ✓ | | `JNIEnv.Initialize()` time | 8.602 | 7.787 | -9.48% ✓ | | Total native init time | 47.726 | 27.156 | -43.10% ✓ |
jonathanpeppers
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Apr 26, 2022
Backports: #6940 Fixes: #6935 Context: dotnet/runtime#67024 Add support for enabling lazy loading of AOTd assemblies and their associated shared libraries, when targeting .NET6+. The feature is enabled by default when AOT is enabled for `Release` builds and can be disabled by setting the new `$(AndroidAotEnableLazyLoad)` MSBuild property to `false`. Performance gains are obvious, but their scale depends on where we look. Results of running a Hello World MAUI app on Pixel 6 Pro, with: See PR for full timing details. With: * `$(RuntimeIdentifier)`=android-arm64 * `$(AndroidEnablePreloadAssemblies)`=False * `$(AndroidUseAssemblyStore)`=True, `$(AndroidEnableAssemblyCompression)`=True | Scenario | Before | After | Δ | | ------------------------------------- | --------: | --------: | --------: | | `ActivityTaskManager: Displayed` time | 367.800 | 368.200 | +0.11% ✗ | | `JNIEnv.Initialize()` time | 6.221 | 5.367 | -13.73% ✓ | | Total native init time | 39.047 | 20.395 | -47.77% ✓ | With: * `$(RuntimeIdentifier)`=android-arm * `$(AndroidEnablePreloadAssemblies)`=True * `$(AndroidUseAssemblyStore)`=True, `$(AndroidEnableAssemblyCompression)`=True | Scenario | Before | After | Δ | | ------------------------------------- | --------: | --------: | --------: | | `ActivityTaskManager: Displayed` time | 490.600 | 475.000 | -3.18% ✓ | | `JNIEnv.Initialize()` time | 8.602 | 7.787 | -9.48% ✓ | | Total native init time | 47.726 | 27.156 | -43.10% ✓ | Co-authored-by: Marek Habersack <grendel@twistedcode.net>
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Fixes: #6935
Context: dotnet/runtime#67024
Add support for enabling lazy loading of AOTd assemblies and their
associated shared libraries, when targetting .NET6+.
The feature is enabled by default when AOT is enabled for
Releasebuilds and can be disabled by setting the new
$(AndroidAotEnableLazyLoad)MSBuild property tofalse.Performance gains are obvious, but their scale depends on where we look.
Results of running a Hello World MAUI app on Pixel 6 Pro:
Displayed time:
Just the
JNIEnv.Initializecall during native init:Total time taken by the native init (before handing control over to the managed
land):