After profiling a Java (or other supported VM) application, the OProfile JIT support creates ELF binaries from the intermediate files that were written by the agent library. The ELF binaries are named <tgid>.jo. With the symbol information stored in these ELF files, it is possible to map samples to the appropriate symbols. The usual analysis tools (opreport and/or opannotate) can now be used to ge
If your Java code seems to have bottlenecks that make it run slow, you need to profile the code. There are a couple of options you have for that. JProfiler JProfiler is a commercial program, but you can evaluate a trial version. HPROF Use HPROF, a profiler included in Sun's Java since version 1.5. VisualVM Use VisualVM (a tutorial can be found here), which is a graphical alternative to HPROF, a
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