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I covered the integration of tracing and profiling in an earlier newsletter. In this month's news I include a link to a demo I gave showing this integration in action. The technology is all open source and shows the future direction of how ever increasing integration of different technologies will add value beyond what each technology provides on it's own.

Now on to that news section as well as all the usual newsletter list of links, tips, tools, and talks , and as usual I've extracted all the tips into this month's tips page.

A note from this newsletter's sponsor

News

Java performance tuning related news

• The intersection of tracing and profiling is enhanced tracing and improved root cause detection
• Worst-case queries and insertions for hash tables now faster than previously conjectured using this algorithm
• if you're locking across a huge number of virtual threads - you're probably designing wrong. But if you really need to do that, these lock dangers are relevant

Tools

Java performance tuning related tools

• Understanding safepoints, safepoint polls, and thread-local handshakes
• Finding CPU load with JFR
• Lightweight Java Visualizer, tool for visualizing Java data structures

Articles

• Optimizing Java Applications on Kubernetes: beyond the Basics (Bruno Borges/InfoQ)
• Handling concurrent access to shared resources in Java (Sebastian Konieczek/OpenValue)
• Memory API: Patterns, Uses Cases, and Performance (Jose Paumard, Remi Forax/Devoxx)

Jack Shirazi

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