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Scala compiler phases with pictures - Iterators
What does scalac (Scala compiler) do during compiling time? It runs code through more than 25 phases! Read this article to find out about scala compiler phases.
scala  compiler  innerworking  jvm 
12 hours ago by gilberto5757
bytestacks - Turn -XX:+TraceBytecodes output into a FlameGraph compatible stack format
A tool to turn the output of -XX:+TraceBytecodes (a JDK debug-only feature to print every bytecode executed by the interpreter) into a simple stack format, and a script to turn that into flame graphs showing what happened during program execution, bytecode-by-bytecode.
JVM  Java  profiler  tools  performance  visualization  opensource 
21 hours ago by liqweed
async-profiler - Sampling CPU and HEAP profiler for Java
A low overhead sampling profiler for Java that does not suffer from Safepoint bias problem. It features HotSpot-specific APIs to collect stack traces and to track memory allocations. The profiler works with OpenJDK, Oracle JDK and other Java runtimes based on HotSpot JVM.
Featuring AsyncGetCallTrace + perf_events.
JVM  profiler  Java  tools  opensource  performance  visualization  memory 
2 days ago by liqweed

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