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Questions tagged [hprof]

A java heap/CPU profiling tool

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Comparing "objects allocated" in a JVisualVM snapshot to number of instances in a Java heap dump

I was using JVisualVM to look at an application, and I saw many objects of SomeDomainClass in the memory profiler and snapshot. A Java heap dump (.hprof file) produced shortly thereafter contained no instances of SomeDomainClass. Because the…
kc2001
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HPROF result interpretation

I have two sets of HProf dumps one for large sample and other for smaller sample - both are result from a very small sample of the huge data that I have. I'm trying to figure out the bottleneck in my approach. Here are my Heap allocation data for…
Learner
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My android application memory usage too large (as reported by memory managers)

I have a Live Wallpaper app that uses photos downloaded from web to use as a wallpaper. Memory managers show that my app is using between 90MB and 120MB (it's a device with 1GB RAM). That is a lot. Wallpaper service get's killed often, and…
CloudWalker
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Is there a Java Component equivalent to C# Control IsDisposed?

I'm looking through some hprof's, trying to find a memory leak. My code saves references to Java Components from a target application I'm building upon. Using Eclipse MAT I can see some of these Components are referenced by my code alone. I'd like…
Paul MacGuiheen
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How do i get a hprof on a Citrix server?

I need to capture a hprof for a Java app that is running on Citrix. So the process is on the server but the UI is on the client machine. I can attach to the javaw.exe on the server, using VisualVM, but i am unable to capture a heap dump (gives me…
Paul MacGuiheen
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How do I get multiple hprof dumps in a Java WebStart (JNLP) application?

Working with a Java console application, I can do this: java -agentlib:hprof=heap=dump,format=b MyClass Then I can hit ctrl-\ (or ctrl-break on Windows) any time I would like to take a snapshot of the heap for later analysis. I would like to do the…
skiphoppy
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How to measure cpu over-head introduced by the hprof profiler attached to a jvm

I'm running IBM's jvm (jdk 5.0) with the options -XrunHprof:format=b I'm aware that instrumenting jvm with hprof involves a performance penality. I would like to quantify that penality. I know that one way to do this is to take off the hprof…
user39732
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