LG

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====Logs====

  * ''Davey''

<code>
2023-07-18 13:13:42.976 11827-11842 OpenGLRenderer          package                I  Davey! duration=911ms; Flags=0, FrameTimelineVsyncId=3329788, IntendedVsync=13906705242453, Vsync=13906705242453, InputEventId=610084089, HandleInputStart=13906705862818, AnimationStart=13906705868235, PerformTraversalsStart=13906705872089, DrawStart=13906706044902, FrameDeadline=13906721909119, FrameInterval=13906705851777, FrameStartTime=16404443, SyncQueued=13906707681412, SyncStart=13906707731204, IssueDrawCommandsStart=13906708150370, SwapBuffers=13906708899693, FrameCompleted=13907616401099, DequeueBufferDuration=16719, QueueBufferDuration=200156, GpuCompleted=13907616401099, SwapBuffersCompleted=13906709324433, DisplayPresentTime=13899831750372, CommandSubmissionCompleted=13906708899693, 
</code>

Ici, cela signifie que ''OpenGLRenderer'' a mis 911ms avant d'afficher sa frame (côté NDK). La limite système est définie par défaut à 700ms. La valeur ne peut pas se modifier.

[[https://android.googlesource.com/platform/frameworks/base/+/f71128f8f42a78c30f3a8581bafb4d5e5192d86d/libs/hwui/JankTracker.cpp#244|JankTracker.cpp]] {{ :amelioration:android:libs_hwui_janktracker.cpp_-_platform_frameworks_base_-_git_at_google_18_07_2023_13_22_56_.html |Archive du 01/06/2022 le 18/07/2023}}

[[https://stackoverflow.com/questions/57132218/openglrenderer-davey|OpenGLRenderer: Davey]] {{ :amelioration:android:android_-_openglrenderer_davey_-_stack_overflow_18_07_2023_13_42_59_.html |Archive du 21/07/2019 le 18/07/2023}}

  * ''Skipped XX frames!  The application may be doing too much work on its main thread''

<code>
2023-07-18 13:13:10.724 11827-11827 Choreographer           package                I  Skipped 33 frames!  The application may be doing too much work on its main thread.
</code>

Ici, cela signifie que la partie Java a sauté 33 frames (côté Java). La limite système est définie par défaut à 30. La valeur peut se modifier en affectant la propriété système de type ''Integer'' ''debug.choreographer.skipwarning''.

[[https://android.googlesource.com/platform/frameworks/base/+/2c303b3f518b2ffdc4bf5f5cd2448d44115601ea/core/java/android/view/Choreographer.java#775|Choreographer.java]] {{ :amelioration:android:core_java_android_view_choreographer.java_-_platform_frameworks_base_-_git_at_google_18_07_2023_13_39_36_.html |Archive du 01/06/2022 le 18/07/2023}}

  * ''waitForever: XXX: fence YYY didn't signal in 3000 ms''

<code>
2023-07-20 15:47:00.363 22153-22171 Fence                   package                E  waitForever: ASurfaceControlStats_getAcquireTime: fence 113 didn't signal in 3000 ms
2023-07-20 15:47:00.363 22153-22171 Fence                   package                E   ----- Printing sync-points under fence fd:113 status:0 name:kgsl-timeline-kgsl-3d0_17-XXXXX -----
2023-07-20 15:47:00.363 22153-22171 Fence                   package                E  status:0 driver:kgsl-timeline obj:kgsl-3d0_17-XXXXXXXXXXXXXXX(221
2023-07-20 15:47:00.363 22153-22171 Fence                   package                I  waitForever: fence(kgsl-timeline-kgsl-3d0_17-XXXXX) status(0)
2023-07-20 15:47:00.363 22153-22171 Fence                   package                I  waitForever: sync point: timeline(kgsl-3d0_17-XXXXXXXXXXXXXXX(221) drv(kgsl-timeline) status(0) timestamp(0.000000)
2023-07-20 15:47:00.895 22153-22171 OpenGLRenderer          package                I  Davey! duration=3613ms; Flags=1, FrameTimelineVsyncId=1126136, IntendedVsync=4394259048581, Vsync=4394259048581, InputEventId=0, HandleInputStart=4394262390457, AnimationStart=4394262391029, PerformTraversalsStart=4394262391238, DrawStart=4394323841186, FrameDeadline=4394275715247, FrameInterval=4394262386811, FrameStartTime=8333333, SyncQueued=4394324888113, SyncStart=4394324934154, IssueDrawCommandsStart=4394325165144, SwapBuffers=4394325898269, FrameCompleted=4397872326341, DequeueBufferDuration=230417, QueueBufferDuration=238802, GpuCompleted=4397872326341, SwapBuffersCompleted=4394326288009, DisplayPresentTime=4129814114098, CommandSubmissionCompleted=4394325898269, 
</code>

La durée de 3000ms est codé en dur. Ici, ce warning est inutile puisque ''OpenGLRenderer'' produit le même avertissement ($3000 + 895 - 363 = 3532$).

[[https://android.googlesource.com/platform/frameworks/native/+/ad741ccb93731e1fcfb307de1491eede00d096eb/libs/ui/Fence.cpp|Fence.cpp]] {{ :amelioration:android:libs_ui_fence.cpp_-_platform_frameworks_native_-_git_at_google_20_07_2023_15_54_03_.html |Archive du 15/11/2021 le 20/07/2023}}