Can JProfiler measure stack depth?

Question

This is closely related to another question: How can I measure thread stack depth?

Can JProfiler watch threads and measure where the deepest stacks occur? If so, how can I do that? I'd like find spots in my application where I'm getting dangerously close to triggering a StackOverflowError.

Dorthadorthea

Answer 1

JProfiler does not have this as a feature directly. However, you can do the following:

• Record CPU data with sampling and no filters

• go to the call tree view in the CPU section

• export the call tree in XML format, selecting the "entire tree" option at the bottom of the file chooser dialog

• write a small program that analyzes the exported XML file and finds the most deeply nested elements

You can also automate this with offline profiling and a trigger to record CPU data and save a snapshot. With the "jpexport" command line executable, you can then export the call tree from the saved snapshot.

Platelet