Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.

AdoptOpenJDK

Last update: Jan 3, 2023

Overview

JITWatch

Log analyser and visualiser for the HotSpot JIT compiler.

Video introduction to JITWatch video
Slides from my LJC lightning talk on JITWatch slides

For instructions and screenshots see the wiki

https://github.com/AdoptOpenJDK/jitwatch/wiki

The JITWatch user interface is built using JavaFX. This is included in the Oracle JDK. If you are using a JDK that does not include JavaFX (e.g. Azul Zulu, or some flavour of packaged OpenJDK on Linux) then you can download a pre-built OpenJFX jar from https://chriswhocodes.com and put it in your build classpath.

ant

ant clean compile test run

maven

mvn clean compile test exec:java

gradle

gradlew clean build run

Build an example HotSpot log

# Build the code first with ant / maven / IDE
./makeDemoLogFile.sh

Comments

Investigate supporting IBM J9 Testarossa JIT

IBM J9 VM is going open-source :)

ref: http://www.slideshare.net/MarkStoodley/under-the-hood-of-the-testarossa-jit-compiler ref: https://twitter.com/mstoodle

It can output JIT decisions using -Xjit:verbose,vlog=<file name>

Investigate if Testarossa has relatable concepts and look into writing a parser for its log and support this VM/JIT in JITWatch.
enhancement

opened by chriswhocodes 19
Missing assembly view
Hi @chriswhocodes - (thanks for developing this wonderful tool).

Setup : Ubuntu 16.04 with Oracle JDK 1.8.151

I am running the code on a server machine and using my local client machine to analyze the JIT log. Both the server and the client machine have identical OSes and JVM versions. The sever has hsdis, and the assembly is generated in the log. However, it is not shown (on the client machine) in the TriView plane.

When I click on the compiled method, I see this pop up on the console

17:19:35.598 [JavaFX Application Thread] WARN o.a.j.c.CompilationUtil - No Task found in Compilation 1451 17:19:35.599 [JavaFX Application Thread] WARN o.a.j.c.CompilationUtil - No Task found in Compilation 1451
opened by animeshtrivedi 17
Digest JMH/perfasm-annotated hotspot.log
JMH had recently added the Linux perf + PrintAssembly internal profiler, and we also switched to optionally dumping the perf-annotated hotspot.log. It would be nice if JITWatch can digest it. It does not right now, since it trips over the leading whitespace from the perf annotations.

Steps to produce the sample HS log:

$ hg clone http://hg.openjdk.java.net/code-tools/jmh/ jmh $ mvn clean install -DskipTests $ java -Djmh.perfasm.saveLog=true -jar jmh-samples/target/benchmarks.jar ".*DeadCode.*" -wi 3 -i 3 -r 1 -f 1 -prof perfasm $ vi ./org.openjdk.jmh.samples.JMHSample_08_DeadCode.measureRight-AverageTime.log
opened by shipilev 16

Some Numberformat exceptions and a NPE

Learned already a lot from jitwatch - thanks :)

Some exceptions where thrown today for master (1.0.0-SNAPSHOT) and java 1.8.0_45:

the first ones are probably due to my German environment:

23:39:21.116 [Thread-7] ERROR o.a.j.s.AttributeSuggestionWalker - Couldn't parse branch tag attribute 1,21666e+06
java.lang.NumberFormatException: For input string: "1,21666e+06"
        at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043) ~[na:1.8.0_45]
        at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110) ~[na:1.8.0_45]
        at java.lang.Double.parseDouble(Double.java:538) ~[na:1.8.0_45]
        at java.lang.Double.valueOf(Double.java:502) ~[na:1.8.0_45]
        at org.adoptopenjdk.jitwatch.suggestion.AttributeSuggestionWalker.handleBranchTag(AttributeSuggestionWalker.java:301) [jitwatch-1.0.0-SNAPSHOT.jar:na]
        at org.adoptopenjdk.jitwatch.suggestion.AttributeSuggestionWalker.processParseTag(AttributeSuggestionWalker.java:193) [jitwatch-1.0.0-SNAPSHOT.jar:na]
        at org.adoptopenjdk.jitwatch.suggestion.AttributeSuggestionWalker.processParseTag(AttributeSuggestionWalker.java:211) [jitwatch-1.0.0-SNAPSHOT.jar:na]
        at org.adoptopenjdk.jitwatch.suggestion.AttributeSuggestionWalker.processParseTag(AttributeSuggestionWalker.java:211) [jitwatch-1.0.0-SNAPSHOT.jar:na]
        at org.adoptopenjdk.jitwatch.suggestion.AttributeSuggestionWalker.visitTag(AttributeSuggestionWalker.java:367) [jitwatch-1.0.0-SNAPSHOT.jar:na]
        at org.adoptopenjdk.jitwatch.journal.JournalUtil.visitParseTagsOfLastTask(JournalUtil.java:91) [jitwatch-1.0.0-SNAPSHOT.jar:na]


23:39:21.114 [Thread-7] ERROR o.a.j.s.AttributeSuggestionWalker - Unrecognised branch probability: 0,50343
java.lang.NumberFormatException: For input string: "0,50343"
        at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043) ~[na:1.8.0_45]
        at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110) ~[na:1.8.0_45]
        at java.lang.Double.parseDouble(Double.java:538) ~[na:1.8.0_45]
        at org.adoptopenjdk.jitwatch.suggestion.AttributeSuggestionWalker.handleBranchTag(AttributeSuggestionWalker.java:313) [jitwatch-1.0.0-SNAPSHOT.jar:na]

And a NPE:

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
        at org.adoptopenjdk.jitwatch.model.MetaClass.loadInnerClasses(MetaClass.java:135)
        at org.adoptopenjdk.jitwatch.model.MetaClass.getClassBytecode(MetaClass.java:112)
        at org.adoptopenjdk.jitwatch.ui.triview.TriView.loadBytecodeForCurrentMember(TriView.java:631)
        at org.adoptopenjdk.jitwatch.ui.triview.TriView.setMember(TriView.java:513)
        at org.adoptopenjdk.jitwatch.ui.triview.TriView.setMember(TriView.java:488)
        at org.adoptopenjdk.jitwatch.ui.JITWatchUI.openTriView(JITWatchUI.java:693)
        at org.adoptopenjdk.jitwatch.ui.suggestion.MemberTableCell$1.handle(MemberTableCell.java:63)
        at org.adoptopenjdk.jitwatch.ui.suggestion.MemberTableCell$1.handle(MemberTableCell.java:59)
        at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)

opened by karussell 14

Can't display assembly of Graal log file
The attached log has been generated with Graal 0.27 from http://www.oracle.com/technetwork/oracle-labs/program-languages/downloads/index.html. I added hsdis from JDK 8. The VM options were

-XX:+UnlockDiagnosticVMOptions -XX:+TraceClassLoading -XX:+LogCompilation -XX:+PrintAssembly -XX:LogFile=compilation8graal-0.5.1.txt

If I click on com.github.marschall.charsequences.CharSequences#uuidFromCharSequence(CharSequence) I get

Assembly not found. Was -XX:+PrintAssembly option used?

The classes JAR can be found here https://search.maven.org/remotecontent?filepath=com/github/marschall/charsequences/0.5.1/charsequences-0.5.1-jar-with-test-dependencies.jar The source JAR can be found here https://search.maven.org/remotecontent?filepath=com/github/marschall/charsequences/0.5.1/charsequences-0.5.1-sources.jar

This is the log compilation8graal-0.5.1.txt
bug
opened by marschall 13
Can't see assembly nor bytecode

Hi! I'm unable to see the assembly nor the bytecode in the TriView. The sources are shown fine, so does the JIT journal.

I'm using the VM flags recommended in the wiki:

-XX:+UnlockDiagnosticVMOptions -XX:+TraceClassLoading -XX:+LogCompilation > -XX:+PrintAssembly

This is the version of the JVM I'm using (with the HSDIS plugin).

java version "1.8.0" Java(TM) SE Runtime Environment (build 1.8.0-b132) Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)

My OS is Debian 8 (Jessie) x64.

I'm using the Java 8 binary download of JitWatch (my application is targeting Java 8).

The HotSpot log file does outputs the assembly, here is an example:

0x00007fd3994a649d: mov $0x1,%r10d 0x00007fd3994a64a3: jmpq 0x00007fd3994a630c 0x00007fd3994a64a8: mov %rdx,%rdi ;*synchronization entry ; -com.carrotsearch.hppc.ObjectObjectOpenHashMap::forEach@-1 (line 822)

opened by dustContributor 13

NPE on "Chain" button

Any attempt to open "Chain" view for any method results in NPE.

Checked current "master" branch and tag "1.4.7".

JDK version: 11.0.13.8, 11.0.15.10

java.lang.NullPointerException
    at org.adoptopenjdk.jitwatch.ui.compilechain.CompileChainStage.buildTree (CompileChainStage.java:375)
    at org.adoptopenjdk.jitwatch.ui.compilechain.CompileChainStage.compilationChanged (CompileChainStage.java:132)
    at org.adoptopenjdk.jitwatch.ui.main.JITWatchUI.openCompileChain (JITWatchUI.java:1271)
    at org.adoptopenjdk.jitwatch.ui.triview.TriView$1.handle (TriView.java:161)
    at org.adoptopenjdk.jitwatch.ui.triview.TriView$1.handle (TriView.java:155)
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent (CompositeEventHandler.java:86)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent (EventHandlerManager.java:234)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent (EventHandlerManager.java:191)
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent (CompositeEventDispatcher.java:59)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent (BasicEventDispatcher.java:58)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent (EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent (BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent (EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent (BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent (EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.EventUtil.fireEventImpl (EventUtil.java:74)
    at com.sun.javafx.event.EventUtil.fireEvent (EventUtil.java:49)
    at javafx.event.Event.fireEvent (Event.java:198)
    at javafx.scene.Node.fireEvent (Node.java:8792)
    at javafx.scene.control.Button.fire (Button.java:203)
    at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased (ButtonBehavior.java:208)
    at com.sun.javafx.scene.control.inputmap.InputMap.handle (InputMap.java:274)
    at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent (CompositeEventHandler.java:247)
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent (CompositeEventHandler.java:80)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent (EventHandlerManager.java:234)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent (EventHandlerManager.java:191)
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent (CompositeEventDispatcher.java:59)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent (BasicEventDispatcher.java:58)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent (EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent (BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent (EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent (BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent (EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.EventUtil.fireEventImpl (EventUtil.java:74)
    at com.sun.javafx.event.EventUtil.fireEvent (EventUtil.java:54)
    at javafx.event.Event.fireEvent (Event.java:198)
    at javafx.scene.Scene$MouseHandler.process (Scene.java:3897)
    at javafx.scene.Scene.processMouseEvent (Scene.java:1878)
    at javafx.scene.Scene$ScenePeerListener.mouseEvent (Scene.java:2623)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run (GlassViewEventHandler.java:411)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run (GlassViewEventHandler.java:301)
    at java.security.AccessController.doPrivileged (Native Method)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2 (GlassViewEventHandler.java:450)
    at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock (QuantumToolkit.java:424)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent (GlassViewEventHandler.java:449)
    at com.sun.glass.ui.View.handleMouseEvent (View.java:557)
    at com.sun.glass.ui.View.notifyMouse (View.java:943)
    at com.sun.glass.ui.win.WinApplication._runLoop (Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3 (WinApplication.java:184)
    at java.lang.Thread.run (Thread.java:829)

bug

opened by alexei-osipov 11

NullPointerException when parsing log

Hi,

Using the latest code of jitwatch - I have a NPE in ParseUtil.java because componentType is null: if (componentType.isAssignableFrom(sigParamClass))

I added a simple if and it seems that memParamClass is "boolean".

I'm running 1.8.0 192.

Let me know if need something else.

Thanks

opened by punx120 10
MetaMember not found for X
I am getting hundreds of errors like MetaMember not found for org.mypkg.benchmark.Compilation2Benchmarks$ fib$1, corresponding to the classes that I specifically want to analyze. 😄 I believe I've set the sources and classes correctly in config. The class and method do exist:

$ javap -p org.mypkg.benchmark.Compilation2Benchmarks$ | grep fib$1 private static final int fib$1(int);

Where should I go from here?
opened by aryairani 10
Save UI state when refreshing

When in a workflow of tweaking code, collecting hotspot logs, then analysing with JITWatch, the clicks to navigate back to the method of interest interrupt the flow.

It would be great if the UI could at least restore the selection of the main tree view. It would be better yet to re-open the TriView panel (assuming the method still exists in the most recent run.)

The other productivity improvement would be to allow command line options to trigger the "Start" with a particular hotspot.log and opening of a TriView at a given method.

opened by retronym 9

Parse Errors on MetaMember

The attached file was generated with JDK 11 and generated the following parse errors. Jitwatch is built from the current master branch:

Could not parse line 33060 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 run ()V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 run ()V
Could not parse line 33509 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 run ()V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 run ()V
Could not parse line 34372 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 34373 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V
Could not parse line 34376 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 34574 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 34575 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V
Could not parse line 34577 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 run ()V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 run ()V
Could not parse line 34580 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V
Could not parse line 34746 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V
Could not parse line 35161 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 35358 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 run ()V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 run ()V
Could not parse line 41020 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 41022 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 41311 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 41313 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 48056 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 run ()V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 run ()V
Could not parse line 48289 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 48344 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V
Could not parse line 48399 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 &lt;init&gt; (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)V
Could not parse line 48529 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 48587 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 run ()V : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 run ()V
Could not parse line 51117 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$2.0x0000000100066840 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;
Could not parse line 51176 : com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable; : MetaMember not found for com.github.marschall.memorymodeldemo.SynchronisedSum$$Lambda$3.0x0000000100066c40 get$Lambda (Lcom.github.marschall.memorymodeldemo.SynchronisedSum;)Ljava.lang.Runnable;

hotspot_pid212229.log

opened by marschall 8

java.lang.VerifyError: Cannot inherit from final class

Hi,

While parsing a hotspot log (jitwatch is using zulu11.58.23-ca-jdk11.0.16.1-win_x64) jitwatch stopped with the following exception:

Exception in thread "Thread-3" java.lang.VerifyError: Cannot inherit from final class at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174) at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:555) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:458) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:398) at org.adoptopenjdk.jitwatch.util.ClassUtil.loadClassWithoutInitialising(ClassUtil.java:55) at org.adoptopenjdk.jitwatch.util.ParseUtil.lateLoadMetaClass(ParseUtil.java:1115) at org.adoptopenjdk.jitwatch.model.JITDataModel.findMetaMember(JITDataModel.java:257) at org.adoptopenjdk.jitwatch.util.ParseUtil.findMemberWithSignature(ParseUtil.java:352) at org.adoptopenjdk.jitwatch.parser.AbstractLogParser.findMemberWithSignature(AbstractLogParser.java:250) at org.adoptopenjdk.jitwatch.parser.AbstractLogParser.handleMember(AbstractLogParser.java:576) at org.adoptopenjdk.jitwatch.parser.AbstractLogParser.handleMethodLine(AbstractLogParser.java:479) at org.adoptopenjdk.jitwatch.parser.AbstractLogParser.handleTagQueued(AbstractLogParser.java:373) at org.adoptopenjdk.jitwatch.parser.hotspot.HotSpotLogParser.handleTag(HotSpotLogParser.java:356) at org.adoptopenjdk.jitwatch.parser.hotspot.HotSpotLogParser.parseLogCompilationLines(HotSpotLogParser.java:154) at org.adoptopenjdk.jitwatch.parser.hotspot.HotSpotLogParser.parseLogFile(HotSpotLogParser.java:130) at org.adoptopenjdk.jitwatch.parser.AbstractLogParser.processLogFile(AbstractLogParser.java:366) at org.adoptopenjdk.jitwatch.parser.ILogParser.processLogFile(ILogParser.java:23) at org.adoptopenjdk.jitwatch.ui.main.JITWatchUI$1.run(JITWatchUI.java:253) at java.base/java.lang.Thread.run(Thread.java:829)

I can't figure out how to go past this.

Thanks

opened by horiavmuntean 2

NPE occured from Tag.getAttributes()

I was exploring the default add sample in the JITWatch and suddenly this exception was shown.

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException: Cannot invoke "org.adoptopenjdk.jitwatch.model.Tag.getAttributes()" because "<local8>" is null
        at org.adoptopenjdk.jitwatch.hotthrow.HotThrowFinder.visitTag(HotThrowFinder.java:119)
        at org.adoptopenjdk.jitwatch.hotthrow.HotThrowFinder.visitTag(HotThrowFinder.java:215)
        at org.adoptopenjdk.jitwatch.compilation.CompilationUtil.visitParseTagsOfCompilation(CompilationUtil.java:89)
        at org.adoptopenjdk.jitwatch.hotthrow.HotThrowFinder.findHotThrows(HotThrowFinder.java:94)
        at org.adoptopenjdk.jitwatch.toplist.HotThrowTopListVisitable.visit(HotThrowTopListVisitable.java:34)
        at org.adoptopenjdk.jitwatch.treevisitor.TreeVisitor.walkPackage(TreeVisitor.java:48)
        at org.adoptopenjdk.jitwatch.treevisitor.TreeVisitor.walkPackage(TreeVisitor.java:39)
        at org.adoptopenjdk.jitwatch.treevisitor.TreeVisitor.walkPackage(TreeVisitor.java:39)
        at org.adoptopenjdk.jitwatch.treevisitor.TreeVisitor.walkTree(TreeVisitor.java:29)
        at org.adoptopenjdk.jitwatch.toplist.AbstractTopListVisitable.buildTopList(AbstractTopListVisitable.java:58)
        at org.adoptopenjdk.jitwatch.ui.toplist.TopListStage.buildTableView(TopListStage.java:208)
        at org.adoptopenjdk.jitwatch.ui.toplist.TopListStage.access$100(TopListStage.java:48)
        at org.adoptopenjdk.jitwatch.ui.toplist.TopListStage$3.changed(TopListStage.java:151)
        at org.adoptopenjdk.jitwatch.ui.toplist.TopListStage$3.changed(TopListStage.java:146)
        at com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:360)
        at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:80)
        at javafx.beans.property.ObjectPropertyBase.fireValueChangedEvent(ObjectPropertyBase.java:106)
        at javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:113)
        at javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:147)
        at javafx.scene.control.ComboBoxBase.setValue(ComboBoxBase.java:151)
        at javafx.scene.control.ComboBox.updateValue(ComboBox.java:516)
        at javafx.scene.control.ComboBox$3.changed(ComboBox.java:499)
        at com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:360)
        at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:80)
        at javafx.beans.property.ReadOnlyObjectPropertyBase.fireValueChangedEvent(ReadOnlyObjectPropertyBase.java:80)
        at javafx.beans.property.ReadOnlyObjectWrapper.fireValueChangedEvent(ReadOnlyObjectWrapper.java:102)
        at javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:113)
        at javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:147)
        at javafx.scene.control.SelectionModel.setSelectedItem(SelectionModel.java:105)
        at javafx.scene.control.ComboBox$ComboBoxSelectionModel.lambda$new$0(ComboBox.java:556)
        at com.sun.javafx.binding.ExpressionHelper$SingleInvalidation.fireValueChangedEvent(ExpressionHelper.java:136)
        at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:80)
        at javafx.beans.property.ReadOnlyIntegerPropertyBase.fireValueChangedEvent(ReadOnlyIntegerPropertyBase.java:78)
        at javafx.beans.property.ReadOnlyIntegerWrapper.fireValueChangedEvent(ReadOnlyIntegerWrapper.java:102)
        at javafx.beans.property.IntegerPropertyBase.markInvalid(IntegerPropertyBase.java:114)
        at javafx.beans.property.IntegerPropertyBase.set(IntegerPropertyBase.java:148)
        at javafx.scene.control.SelectionModel.setSelectedIndex(SelectionModel.java:69)
        at javafx.scene.control.SingleSelectionModel.updateSelectedIndex(SingleSelectionModel.java:215)
        at javafx.scene.control.SingleSelectionModel.select(SingleSelectionModel.java:149)
        at javafx.scene.control.skin.ComboBoxListViewSkin.lambda$createListView$10(ComboBoxListViewSkin.java:558)
        at com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:348)
        at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:80)
        at javafx.beans.property.ReadOnlyIntegerPropertyBase.fireValueChangedEvent(ReadOnlyIntegerPropertyBase.java:78)
        at javafx.beans.property.ReadOnlyIntegerWrapper.fireValueChangedEvent(ReadOnlyIntegerWrapper.java:102)
        at javafx.beans.property.IntegerPropertyBase.markInvalid(IntegerPropertyBase.java:114)
        at javafx.beans.property.IntegerPropertyBase.set(IntegerPropertyBase.java:148)
        at javafx.scene.control.SelectionModel.setSelectedIndex(SelectionModel.java:69)
        at javafx.scene.control.MultipleSelectionModelBase.select(MultipleSelectionModelBase.java:413)
        at javafx.scene.control.MultipleSelectionModelBase.clearAndSelect(MultipleSelectionModelBase.java:360)
        at javafx.scene.control.ListView$ListViewBitSetSelectionModel.clearAndSelect(ListView.java:1451)
        at com.sun.javafx.scene.control.behavior.CellBehaviorBase.simpleSelect(CellBehaviorBase.java:282)
        at com.sun.javafx.scene.control.behavior.CellBehaviorBase.doSelect(CellBehaviorBase.java:246)
        at com.sun.javafx.scene.control.behavior.CellBehaviorBase.mousePressed(CellBehaviorBase.java:176)
        at com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
        at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
        at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:234)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
        at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
        at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
        at javafx.event.Event.fireEvent(Event.java:198)
        at javafx.scene.Scene$MouseHandler.process(Scene.java:3897)
        at javafx.scene.Scene.processMouseEvent(Scene.java:1878)
        at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2623)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:411)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:301)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:450)
        at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:449)
        at com.sun.glass.ui.View.handleMouseEvent(View.java:557)
        at com.sun.glass.ui.View.notifyMouse(View.java:943)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
        at java.base/java.lang.Thread.run(Thread.java:833)

opened by firststar91 3

After the SpringBoot project adds source and class to the config, the following error occurs when you click start

hello~, I want to use JitWatch to help me analyze which code in my SpringBoot project is too high because which code is compiled and analyzed by JIT, but after pouring into the source code and class directory of the project according to wiki, there is an exception shown below. I don't know how to solve it for the time being, or whether there is a problem with my way of use. Please give me some advice. Thank you very much.

jitwatch.out

19:01:21.127 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.StringUtils'
19:01:21.128 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.StringUtils'
19:01:21.129 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.StringUtils'
19:01:21.129 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.StringUtils'
19:01:21.148 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.ConcurrentReferenceHashMap$Segment'
19:01:21.148 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.ConcurrentReferenceHashMap$Segment'
19:01:21.152 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.Assert'
19:01:21.152 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.Assert'
19:01:21.153 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.ConcurrentReferenceHashMap$Segment'
19:01:21.153 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.core.ResolvableType'
19:01:21.153 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.ConcurrentReferenceHashMap$Segment'
19:01:21.154 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.core.ResolvableType'
19:01:21.160 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.ConcurrentReferenceHashMap'
19:01:21.161 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.ConcurrentReferenceHashMap'
19:01:21.161 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.core.ResolvableType'
19:01:21.161 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.util.ObjectUtils'
19:01:21.161 [Thread-4] ERROR o.a.j.u.ParseUtil - ClassNotFoundException: 'org.springframework.core.ResolvableType'
......

jitwatch.out.log

opened by CodeHourra 5

Fix code cache visualisation since segmented code cache

The code cache view is less useful since JDK9 introduced the segmented code cache. The compiled methods are much harder to spot visually.

Need to obtain the correct address ranges for the native, profiled, and non-profiled segments and when viewing a compiled method, only show the address range for the segment containing that method.
bug

opened by chriswhocodes 0

Releases(1.4.7)

1.4.7(Jan 23, 2022)

While testing JITWatch on an Apple M1 CPU (via Scaleway M1 VPS) I found that OpenJFX version 17.0.1 would segfault the VM.

Bumped the version to 17.0.2 which includes a fix for this bug.

Please use the release jitwatch-ui-1.4.7-shaded-mac-m1.jar for an Apple M1 (aarch64) MacOS computer.
Source code(tar.gz)
Source code(zip)
jitwatch-ui-1.4.7-shaded-linux.jar(44.84 MB)
jitwatch-ui-1.4.7-shaded-mac-m1.jar(37.97 MB)
jitwatch-ui-1.4.7-shaded-mac.jar(40.70 MB)
jitwatch-ui-1.4.7-shaded-win.jar(36.21 MB)
1.4.6(Jan 16, 2022)
If hsdis is not detected then the JITWatch sandbox will offer to download it from https://chriswhocodes.com/hsdis/

Fixed broken scripts

This was released earlier as 1.4.5 but had a bug in the filename for the MacOS hsdis plugin. Re-released as 1.4.6
Source code(tar.gz)
Source code(zip)
jitwatch-ui-1.4.6-shaded-linux.jar(44.85 MB)
jitwatch-ui-1.4.6-shaded-mac.jar(40.70 MB)
jitwatch-ui-1.4.6-shaded-win.jar(36.22 MB)
1.4.4(Dec 18, 2021)

JITWatch now uses my simple, minimal logger com.chrisnewland.freelogj which is a drop-in replacement for SLF4J.
Source code(tar.gz)
Source code(zip)
jitwatch-ui-1.4.4-shaded-linux.jar(44.83 MB)
jitwatch-ui-1.4.4-shaded-mac.jar(40.69 MB)
jitwatch-ui-1.4.4-shaded-win.jar(36.21 MB)
1.4.2(Sep 22, 2021)
Shaded jars (for JDK11+) contain only the OpenJFX native binaries for the target platform

Fixed VM vendor and version display on main UI

Source code(tar.gz)
Source code(zip)
jitwatch-ui-1.4.2-shaded-linux.jar(44.75 MB)
jitwatch-ui-1.4.2-shaded-mac.jar(40.67 MB)
jitwatch-ui-1.4.2-shaded-win.jar(36.41 MB)
1.4.1(Sep 21, 2021)

A fix rollup build containing:

All the cool i18n contributions OpenJFX version upgrade to 17.0.0.1 Build fix to add-export to allow JavapTask to be used via reflection again (faster) All the other fixes since Oct 2020.
Source code(tar.gz)
Source code(zip)
jitwatch-ui-1.4.1-shaded-linux.jar(97.96 MB)
jitwatch-ui-1.4.1-shaded-mac.jar(98.10 MB)
jitwatch-ui-1.4.1-shaded-win.jar(98.42 MB)
1.4.0(Oct 29, 2020)

This release contains all the fixes since the last release in 2017 plus cleaned up build files and upgrades OpenJFX to 15.0.1 when using JDK11+

Each shaded jar contains all the dependencies including OpenJFX for your operating system so you can now run JITWatch using java -jar <jarfile>

jitwatch-ui-1.4.0-shaded.jar => Linux jitwatch-ui-1.4.0-shaded-mac.jar =>Mac jitwatch-ui-1.4.0-shaded-win.jar => Windows
Source code(tar.gz)
Source code(zip)
jitwatch-ui-1.4.0-shaded-mac.jar(94.82 MB)
jitwatch-ui-1.4.0-shaded-win.jar(95.19 MB)
jitwatch-ui-1.4.0-shaded.jar(94.75 MB)
1.3.0(Dec 10, 2017)

This release adds 4 new visualisations around the JIT compiler threads and queues.

Explained in this video https://www.youtube.com/watch?v=p0mWUgRcCHQ&feature=youtu.be
Source code(tar.gz)
Source code(zip)
1.2.3(Oct 22, 2017)

When an On-Stack-Replacement (OSR) compilation is selected in the TriView it will now highlight the bytecode and source code of the loop that was compiled.
Source code(tar.gz)
Source code(zip)
1.2.2(Sep 26, 2017)

Use JITWatch in presentations or blogs? Now you can snapshot the main, TriView, Sandbox, and Compile chain windows. Saves the time-stamped screenshot to the working directory.
Source code(tar.gz)
Source code(zip)
1.2.1(Sep 26, 2017)

Releases with this tag or later are compatible with JDK9
Source code(tar.gz)
Source code(zip)
1.1.6(Apr 26, 2017)

Source code(tar.gz)
Source code(zip)