Running memory while parsing a Java heap dump

Question

I have a curious problem, I need to analyze a 1.5 GB Java heap dump (from IBM JRE), the problem is that when analyzing the dump (I tried HeapAnalyzer and IBM Memory Analyzer 0.5 ), the tools run out of memory I can not really analyze dump. I have 3 GB of RAM on my machine, but it seems that this is not enough to analyze a 1.5 GB dump,

My question is, do you know a specific heap dump analysis tool (supporting IBM JRE dumps) that I could use with the amount of memory I have?

Thanks.

Answer 1

Try the SAP memory analyzer tool, which also has an eclipse plugin . This tool creates index files on disk because it processes the dump file and requires much less memory than other parameters. I am sure that it supports the new IBM JRE. At the same time - with a 1.5 GB dump file, you may have no other option but to run a 64-bit JVM to analyze this file. I usually estimate that a heap dump file of size n takes 5 * n to open using standard tools and 3 * n memory to open using MAT, but your movement will depend on what the dump actually contains.