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Performance Advisor crash

WildMaN

Can't compile the Performance Advisor report with the following error. Any tips appreciated!

!ENTRY org.eclipse.osgi 4 0 2020-04-09 00:37:49.570
!MESSAGE Application error
!STACK 1
java.lang.AssertionError
at com.arm.meerkat.application.capturedata.Frame.<init>(Frame.java:25)
at com.arm.meerkat.application.capturedata.FrameProvider.initialiseGaFrames(FrameProvider.java:227)
at com.arm.meerkat.application.capturedata.FrameProvider.doInitialise(FrameProvider.java:135)
at com.arm.meerkat.application.capturedata.Provider.initialise(Provider.java:65)
at com.arm.meerkat.application.capturedata.CaptureData.initialise(CaptureData.java:111)
at com.arm.meerkat.application.PerformanceAdvisor.call(PerformanceAdvisor.java:242)
at com.arm.meerkat.application.Application.start(Application.java:94)
at com.arm.meerkat.application.Application.start(Application.java:1)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:660)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:597)
at org.eclipse.equinox.launcher.Main.run(Main.java:1468)

Parents
  • +1 Arm Employee Badge in reply to Peter Harris

    Just to log the workaround to help anyone else hitting the same problem:

    The issue

    The issue occurs when connecting to an application that is already running. We capture frame annotation events for a number of frames with a negative start time relative to the official start of the Streamline capture. These all get clipped to time=0, which results in an assertion for zero length frames.

    The workaround

    There are two workarounds:

    1. Start the Streamline capture first, and then start the application. This avoids the frame events with negative start time being generated. 
    2. Edit the pa.ini file in the Mobile Studio installation to remove the "-ea" line, which disables the assertion that is being hit.

    Thanks for the bug report and helping improve the tool, 
    Pete

Reply
  • +1 Arm Employee Badge in reply to Peter Harris

    Just to log the workaround to help anyone else hitting the same problem:

    The issue

    The issue occurs when connecting to an application that is already running. We capture frame annotation events for a number of frames with a negative start time relative to the official start of the Streamline capture. These all get clipped to time=0, which results in an assertion for zero length frames.

    The workaround

    There are two workarounds:

    1. Start the Streamline capture first, and then start the application. This avoids the frame events with negative start time being generated. 
    2. Edit the pa.ini file in the Mobile Studio installation to remove the "-ea" line, which disables the assertion that is being hit.

    Thanks for the bug report and helping improve the tool, 
    Pete

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