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Questions tagged [hprof]

A java heap/CPU profiling tool

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React Native: .hprof file exceeds GitHub's 100MB file size limit

I'm trying to push my React Native app to GitHub, and I'm getting several errors like the following: remote: error: File android/java_pid1566.hprof is 667.24 MB; this exceeds GitHub's file size limit of 100.00 MB I looked at this answer and it…
gkeenley
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Java - Automated CPU / Memory sampling - alternative to HPROF

I was used to work with HPROF in order to capture CPU time and memory usage while developing applications. For some reasons, I was forced to work with following JDK : Eclipse OpenJ9 VM AdoptOpenJDK (build openj9-0.21.0, JRE 11 Windows 10…
a-mn
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Java Could not find agent library hprof on the library path

I was trying to profile CPU usage in my code and discovered the built-in hprof. https://docs.oracle.com/javase/8/docs/technotes/samples/hprof.html However, as I tested I got the following error: javac -J-agentlib:hprof=cpu=samples Main.java Error…
DTK
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How to run hprof on mac

I was trying to use hprof on mac, however, when I run the following command java -agentlib:hprof=help I get the following:- Error occurred during initialization of VM Could not find agent library hprof on the library path, with error:…
java_smells
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jhat -baseline feature does not work with HeapDumpOnOutOfMemoryError and jcmd GC.heap_dump generated baseline

I have a sudden memory leak which occurs fairly instantaneously so I must catch the dump with HeapDumpOnOutOfMemoryError. But to see what really caused this massive memory spike I need to take a baseline first, and I use jcmd $pid GC.heap_dump…
Gunther Schadow
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Loading objects from .hprof file back into Java program

Is it possible to load objects from an .hprof file back into a Java program? I created a heap dump using VisualVM. I'm trying to use the dump not for analysis, but as a way to load an array of objects that I had in the program at that moment back…
Michael Hermenault
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HPROF to do daily dumps

I was wondering if there's a way to "schedule" HPROF dumps so that we can have an HPROF file generated per day (or per hour depending on the size). What I am thinking was to add profiling on the production system and have it as part of their daily…
Archimedes Trajano
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Profiling WebSphere with hprof for CPU SAMPLES output

I'm trying to profile WebSphere using hprof over IBM stack (J9 JVM on AIX / Linux). Specifically, I'm interested in the CPU samples output from hprof, and particularly, the startup time (from the time WS is started until it is "ready for…
valiano
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What does $classOverhead mean in hprof viewer?

When I open hprof files, I can see the following: However, I don't know what this means.
Dong Wang
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Jmeter SampleResult Memory Leak

I am using JMeter for performance testing and came upon a problem with OutOfMemory exception. I disabled the listeners and only configuring .jtl output as recommended on several pages. Still, the memory leak occurs. I've analyzed .hprof a little.…
Gobanit
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LeakCanary clean HPROF files

I have a project which integrated LeakCanary to detect memory leaks. I know it used HAHA to dump memory to hprof files to detect leaks. But every single time I Run app from Android Studio, it trigger dumping process and create a new hprof file…
nhoxbypass
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GC and java heap analysis in Android Studio

I'm playing around in Android Studio to learn more about memory leaks. What i noticed is that, after rotating the screen a couple of times, i see multiple instances of that activity (after clicking on "Initiate GC" and "Dump Java Heap"). But when i…
DennisVA
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Way to convert java.hprof.txt to binary hprof format?

I have a java.hprof.txt file (automatically generated after an OutOfMemoryError) which I would like to convert to the binary hprof format. Is there any easy way to do this?
Epaga
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hprof file not generated by Android application

I am debugging a Android slideshow playing app in eclipse. I am trying to generate heap dump in order to find the origin of memory leak but no hprof file is generated in the folder"/data/data/app folder/"android device I am testing. The following is…
Anndexi9
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Java HPROF heap dump missing fields?

I am using Eclipse Memory Analyser to view an HPROF file. It displays different number of fields for different instances of the same class: It seems the fields missing may never have been assigned to, but what was the value in those missing fields?…
billc.cn
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