VisualVM CPU sampling not working

[Alan Snyder]

As far as I can tell, the latest VisualVM (1.3.9) is unable to do CPU sampling or profiling on the latest EA build (9-ea+169-jigsaw-nightly-h6406-20170517).

Is this really the case, or am I missing something?

Is someone working on this?

I would think that performance analysis would be important during the EA period. Is there some other tool I should be using that works?

  Alan

P.S. No response on serviceability-dev…







> On May 2, 2017, at 5:39 PM, Mandy Chung <mandy.chung at oracle.com> wrote:
> 
> serviceability-dev (cc’ed) is the proper mailing list for this issue
> and so bcc jdk9-dev.
> 
> https://bugs.openjdk.java.net/browse/JDK-8167121 has been pushed
> to jdk8u-dev.  We will need to get this fix in a 8u release.
> 
> Mandy
> 
>> On May 2, 2017, at 2:15 PM, Alan Snyder <javalists at cbfiddle.com> wrote:
>> 
>> Is this a known problem? It resembles JDK-8165005. Makes it hard to investigate performance problems if the tools don't work. Are there other tools that work?
>> 
>> This is VisualVM 1.39 on an application running under jdk9-ea+166.
>> 
>> It reports:
>> 
>> Cannot access threads in target application.
>> 
>> The log file shows:
>> 
>> java.lang.IllegalArgumentException: Unexpected composite type for ThreadInfo
>> at sun.management.ThreadInfoCompositeData.validateCompositeData(ThreadInfoCompositeData.java:372)
>> at sun.management.ThreadInfoCompositeData.getInstance(ThreadInfoCompositeData.java:68)
>> at java.lang.management.ThreadInfo.<init>(ThreadInfo.java:263)
>> at java.lang.management.ThreadInfo.from(ThreadInfo.java:794)
>> 
>> Caused: java.lang.reflect.InvocationTargetException
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> at java.lang.reflect.Method.invoke(Method.java:498)
>> at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
>> at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> at java.lang.reflect.Method.invoke(Method.java:498)
>> at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
>> at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$CompositeBuilderViaFrom.fromCompositeData(DefaultMXBeanMappingFactory.java:1018)
>> 
>> Caused: java.io.InvalidObjectException: Failed to invoke from(CompositeData)
>> at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory.invalidObjectException(DefaultMXBeanMappingFactory.java:1457)
>> at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$CompositeBuilderViaFrom.fromCompositeData(DefaultMXBeanMappingFactory.java:1021)
>> at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$CompositeMapping.fromNonNullOpenValue(DefaultMXBeanMappingFactory.java:919)
>> at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$NonNullMXBeanMapping.fromOpenValue(DefaultMXBeanMappingFactory.java:133)
>> at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$ArrayMapping.fromNonNullOpenValue(DefaultMXBeanMappingFactory.java:584)
>> at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$NonNullMXBeanMapping.fromOpenValue(DefaultMXBeanMappingFactory.java:133)
>> at com.sun.jmx.mbeanserver.ConvertingMethod.fromOpenReturnValue(ConvertingMethod.java:131)
>> at com.sun.jmx.mbeanserver.MXBeanProxy.invoke(MXBeanProxy.java:168)
>> at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:258)
>> 
>> Caused: java.lang.reflect.UndeclaredThrowableException
>> at com.sun.proxy.$Proxy16.dumpAllThreads(Unknown Source)
>> at com.sun.tools.visualvm.sampler.cpu.ThreadInfoProvider.dumpAllThreads(ThreadInfoProvider.java:103)
>> 
>> [catch] at com.sun.tools.visualvm.sampler.cpu.ThreadInfoProvider.initialize(ThreadInfoProvider.java:88)
>> at com.sun.tools.visualvm.sampler.cpu.ThreadInfoProvider.<init>(ThreadInfoProvider.java:54)
>> at com.sun.tools.visualvm.sampler.SamplerImpl$11.run(SamplerImpl.java:485)
>> at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
>> at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
>> 
>