async-profiler/async-profiler v1.1

Perf Events support

on GitHub

v1.1

Features

• Linux Perf Events profiling: CPU cycles, cache misses, branch misses, page faults, context switches etc.
• Kernel tracepoints support
• Contended monitor (aka intrinsic lock) profiling
• Individual thread profiles

Improvements

• Profiler can engage at JVM start and automatically dump results on exit
• list command-line option to list supported events
• Automatically find target process ID with jps tool
• An option to include counter value in collapsed output
• Friendly class names in allocation profile
• Split allocations in new TLAB vs. outside TLAB

Changes

• Replaced -m modes with -e events
• Interval changed from int to long