FPS down when scrolling a long list #5
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huycozy
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… template to use Github forms (#134033) Closes #119921 ### Demo - Demo issue template: [Issue: My app is slow or missing frames](https://github.com/huycozy/flutter/issues/new?assignees=&labels=from%3A+performance+template&projects=&template=5_performance_speed.yml) - Demo a filed issue: huycozy#5
huycozy
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Mairramer
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… template to use Github forms (flutter#134033) Closes flutter#119921 ### Demo - Demo issue template: [Issue: My app is slow or missing frames](https://github.com/huycozy/flutter/issues/new?assignees=&labels=from%3A+performance+template&projects=&template=5_performance_speed.yml) - Demo a filed issue: huycozy#5
huynguyennovem
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Feb 27, 2025
The crash indicates that FlutterJNI is returning a nullptr SurfaceControl.Transaction. That likely indicates that we're trying to rasterize a frame before the platform view controller is setup. Potentially a startup race? At any rate, if the PVC is null that means there is no platform views - so it should be safe to create a tx on the fly. Interestingly I cannot repro this locally even on the same device. ``` [2025-02-11 21:50:37.462356] [STDOUT] stdout: [ +173 ms] *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** [2025-02-11 21:50:37.462539] [STDOUT] stdout: [ ] Build fingerprint: 'google/cheetah/cheetah:13/TQ3A.230901.001/10750268:user/release-keys' [2025-02-11 21:50:37.462564] [STDOUT] stdout: [ ] Revision: 'MP1.0' [2025-02-11 21:50:37.463914] [STDOUT] stdout: [ +1 ms] ABI: 'arm64' [2025-02-11 21:50:37.463946] [STDOUT] stdout: [ ] Timestamp: 2025-02-11 21:57:42.183302140-0800 [2025-02-11 21:50:37.463959] [STDOUT] stdout: [ ] Process uptime: 3s [2025-02-11 21:50:37.464054] [STDOUT] stdout: [ ] Cmdline: dev.benchmarks.platform_views_layout [2025-02-11 21:50:37.464174] [STDOUT] stdout: [ ] pid: 15185, tid: 15246, name: 1.raster >>> dev.benchmarks.platform_views_layout <<< [2025-02-11 21:50:37.464354] [STDOUT] stdout: [ ] uid: 10250 [2025-02-11 21:50:37.464398] [STDOUT] stdout: [ ] tagged_addr_ctrl: 0000000000000001 (PR_TAGGED_ADDR_ENABLE) [2025-02-11 21:50:37.464440] [STDOUT] stdout: [ ] signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0000000000000000 [2025-02-11 21:50:37.464602] [STDOUT] stdout: [ ] Cause: null pointer dereference [2025-02-11 21:50:37.464651] [STDOUT] stdout: [ ] x0 b400007b82ff2e70 x1 000000000000002d x2 b400007c3309f370 x3 0000007abbcc6a23 [2025-02-11 21:50:37.464745] [STDOUT] stdout: [ ] x4 0000007a30d286b0 x5 0000007a4f6dd47b x6 0000000000000000 x7 61686b4b11ff3a78 [2025-02-11 21:50:37.464831] [STDOUT] stdout: [ ] x8 0000000000000000 x9 1417c2bd490e1f78 x10 0000000000000010 x11 000000000000009c [2025-02-11 21:50:37.464933] [STDOUT] stdout: [ ] x12 0000000000000adb x13 b400007ba2fe9510 x14 0000000000000e6b x15 b400007ba2fe9510 [2025-02-11 21:50:37.465012] [STDOUT] stdout: [ ] x16 0000000000000001 x17 0000000000000067 x18 0000007a2f996000 x19 b400007b82ff2e70 [2025-02-11 21:50:37.465082] [STDOUT] stdout: [ ] x20 000000000000002d x21 b400007ae3064b60 x22 b400007af30d0fa8 x23 0000000000000001 [2025-02-11 21:50:37.465155] [STDOUT] stdout: [ ] x24 0000007a30d2a000 x25 b400007b73028fb0 x26 0000007a3a22da20 x27 000000003b9bf6c8 [2025-02-11 21:50:37.465235] [STDOUT] stdout: [ ] x28 b400007af30d0fa8 x29 b400007ad3022cd0 [2025-02-11 21:50:37.465318] [STDOUT] stdout: [ ] lr 0000007a3a8c7918 sp 0000007a30d28940 pc 0000000000000000 pst 0000000040001000 [2025-02-11 21:50:37.465401] [STDOUT] stdout: [ ] backtrace: [2025-02-11 21:50:37.465491] [STDOUT] stdout: [ ] #00 pc 0000000000000000 <unknown> [2025-02-11 21:50:37.465596] [STDOUT] stdout: [ ] #1 pc 000000000088b914 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (flutter::PlatformViewAndroidJNIImpl::createTransaction()+104) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.465688] [STDOUT] stdout: [ ] #2 pc 000000000087f738 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (std::_fl::__function::__func<flutter::AndroidSurfaceVKImpeller::SetNativeWindow(fml::RefPtr<flutter::AndroidNativeWindow>, std::_fl::shared_ptr<flutter::PlatformViewAndroidJNI> const&)::$_0, std::_fl::allocator<flutter::AndroidSurfaceVKImpeller::SetNativeWindow(fml::RefPtr<flutter::AndroidNativeWindow>, std::_fl::shared_ptr<flutter::PlatformViewAndroidJNI> const&)::$_0>, impeller::android::SurfaceTransaction ()>::operator()()+16) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.465785] [STDOUT] stdout: [ ] #3 pc 0000000000bdbf1c /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (std::_fl::__function::__func<impeller::AHBSwapchainImplVK::AcquireNextDrawable()::$_0, std::_fl::allocator<impeller::AHBSwapchainImplVK::AcquireNextDrawable()::$_0>, bool ()>::operator()()+1716) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.465874] [STDOUT] stdout: [ ] #4 pc 0000000000b1d180 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (flutter::SurfaceFrame::Submit()+148) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.465989] [STDOUT] stdout: [ ] #5 pc 0000000000beb2b4 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (flutter::Rasterizer::DrawToSurfacesUnsafe(flutter::FrameTimingsRecorder&, std::_fl::vector<std::_fl::unique_ptr<flutter::LayerTreeTask, std::_fl::default_delete<flutter::LayerTreeTask> >, std::_fl::allocator<std::_fl::unique_ptr<flutter::LayerTreeTask, std::_fl::default_delete<flutter::LayerTreeTask> > > >)+1284) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466400] [STDOUT] stdout: [ ] #6 pc 0000000000beac58 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (flutter::Rasterizer::DrawToSurfaces(flutter::FrameTimingsRecorder&, std::_fl::vector<std::_fl::unique_ptr<flutter::LayerTreeTask, std::_fl::default_delete<flutter::LayerTreeTask> >, std::_fl::allocator<std::_fl::unique_ptr<flutter::LayerTreeTask, std::_fl::default_delete<flutter::LayerTreeTask> > > >)+112) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466444] [STDOUT] stdout: [ ] #7 pc 0000000000bec144 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (std::_fl::__function::__func<flutter::Rasterizer::Draw(std::_fl::shared_ptr<flutter::Pipeline<flutter::FrameItem> > const&)::$_0, std::_fl::allocator<flutter::Rasterizer::Draw(std::_fl::shared_ptr<flutter::Pipeline<flutter::FrameItem> > const&)::$_0>, void (std::_fl::unique_ptr<flutter::FrameItem, std::_fl::default_delete<flutter::FrameItem> >)>::operator()(std::_fl::unique_ptr<flutter::FrameItem, std::_fl::default_delete<flutter::FrameItem> >&&)+192) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466468] [STDOUT] stdout: [ ] #8 pc 0000000000bebc48 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (flutter::Rasterizer::Draw(std::_fl::shared_ptr<flutter::Pipeline<flutter::FrameItem> > const&)+360) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466521] [STDOUT] stdout: [ ] #9 pc 0000000000bf9f7c /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (std::_fl::__function::__func<fml::internal::CopyableLambda<flutter::Shell::OnAnimatorDraw(std::_fl::shared_ptr<flutter::Pipeline<flutter::FrameItem> >)::$_0>, std::_fl::allocator<fml::internal::CopyableLambda<flutter::Shell::OnAnimatorDraw(std::_fl::shared_ptr<flutter::Pipeline<flutter::FrameItem> >)::$_0> >, void ()>::operator()()+84) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466543] [STDOUT] stdout: [ ] #10 pc 00000000008a09ec /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (fml::MessageLoopImpl::RunExpiredTasksNow()+728) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466667] [STDOUT] stdout: [ ] #11 pc 00000000008a4600 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (fml::MessageLoopAndroid::MessageLoopAndroid()::$_0::__invoke(int, int, void*)+84) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466746] [STDOUT] stdout: [ ] #12 pc 0000000000011178 /system/lib64/libutils.so (android::Looper::pollOnce(int, int*, int*, void**)+808) (BuildId: 0b4a793fa8045c04066d988c68bac8bb) [2025-02-11 21:50:37.466784] [STDOUT] stdout: [ ] flutter#13 pc 00000000000185e4 /system/lib64/libandroid.so (ALooper_pollOnce+100) (BuildId: 682dab490c18361d5d6527bcdd86cdfa) [2025-02-11 21:50:37.466865] [STDOUT] stdout: [ ] flutter#14 pc 00000000008a470c /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (fml::MessageLoopAndroid::Run()+28) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466903] [STDOUT] stdout: [ ] flutter#15 pc 00000000008a283c /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (std::_fl::__function::__func<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0, std::_fl::allocator<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0>, void ()>::operator()()+116) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.466943] [STDOUT] stdout: [ ] flutter#16 pc 00000000008a2670 /data/app/~~u9nRjz4bI1GoKFecw6gtbg==/dev.benchmarks.platform_views_layout-RoPBoOldhc38L7sINb2Vgg==/lib/arm64/libflutter.so (fml::ThreadHandle::ThreadHandle(std::_fl::function<void ()>&&)::$_0::__invoke(void*)+8) (BuildId: 8fab16f9507483301ef418db2c91ed06689696b1) [2025-02-11 21:50:37.467002] [STDOUT] stdout: [ ] flutter#17 pc 00000000000c226c /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+204) (BuildId: dc4001c2ef2dfc23467040797a96840c) [2025-02-11 21:50:37.467058] [STDOUT] stdout: [ ] flutter#18 pc 0000000000054a30 /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64) (BuildId: dc4001c2ef2dfc23467040797a96840c) [2025-02-11 21:50:37.525275] [STDOUT] stdout: [ +57 ms] 00:00 �[32m+0�[0m�[31m -1�[0m: scrolling performance test (setUpAll) �[1m�[31m[E]�[0m�[0m ```
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Steps to reproduce
Code sample
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[Paste your code here]Performance profiling on master channel
Yes
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What target platforms are you seeing this bug on?
Android, iOS
OS/Browser version | Device information
Android 13
iOS 14
Pixel 6
iPhone 14 Pro
Does the problem occur on emulator/simulator as well as on physical devices?
Yes
Is the problem only reproducible with Impeller?
Yes
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