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  1. JDK
  2. JDK-8092246

Delays in D3D Present affect performance

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      A very simple animation shows that the render thread spends significant time in com.sun.prism.d3d.D3DSwapChain.nPresent().
      The fact that the length of those delays increases linearly and resets periodically suggests that the pulse is out of sync with VSync and occurs at a lower frequency (approx. 16ms vs 16.66 ms). Since the user thread waits for the renderer to finish its job, time spent in nPresent() affects the number of frames that could be created and rendered per second for computationally intensive applications. (See attached timeline view for the user and render threads).

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          blocks

          Enhancement - null JDK-8100864 Quantum threading

          • P3 - Major loss of function.
          • Closed
          duplicates

          Enhancement - null JDK-8100622 Allow QuantumRenderer thread and FX Application thread to run in parallel

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8104684 Animation stutters

          • P3 - Major loss of function.
          • Closed

          Enhancement - null JDK-8101330 QuantumToolkit can schedule the pulse better to improve performance

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8113170 A simple animation is jerky

          • P3 - Major loss of function.
          • Resolved

          Enhancement - null JDK-8100622 Allow QuantumRenderer thread and FX Application thread to run in parallel

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

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              Unassigned Unassigned
              omazurov Oleg Mazurov (Inactive)
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