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Blogs by topic Performance and user claudio
Performance
With the current stable JDK 6u7 it is not possible to generate heap dump on linux 64 bits. Looks like it was a bug, fixed on JDK 6 u10 RC. Read on for more details.
There is a very useful site at wikis.sun.com where you can have a better understanding of HotSpot Internals, maintained by HotSpot programmers, highly valuable.
You can see my presentation about Tools and Tips to Diagnose Performance Issues on-line or download it. It was great, because the room was almost full, people keep taking pictures, looks like the topic was interesting. Some people asked questions at the end, where I want to answer here, to a broad audience.
What are the available tools to read and understand heap and thread dump files ? How to detect a memory leak on Java applications ? How to detect thread contention issues ? Those are all question I want to answer and show some examples at Jazoon conference, along other tools and tips. My session is "Tools and Tips to Diagnose Performance Issues", scheduled to go on June, 24, 5:30pm.
I am very proud to be a Jazooner this year, my session "Tools and Tips to Diagnose Performance Issues" is scheduled to June, 24. I want to share with the audience my experience on diagnosing performance problems related to Java technology at server side applications.
I developed a performance utility to test the scalability of threads per java process. Test it and see how many threads you system can afford to create and run concurrently.
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