Explore advanced JVM profiling techniques in this comprehensive conference talk by Andrei Pangin, Java Champion and creator of async-profiler. Learn how to identify performance bottlenecks, native memory leaks, and I/O issues using modern open-source tools integrated with IntelliJ IDEA. Discover the advantages of async-profiler over traditional profiling methods, and gain insights into JVM internal structures, OS capabilities, and hardware performance counters. Follow along with live demonstrations showcasing how to uncover subtle performance problems in Java applications, and understand the importance of profiling in optimizing code efficiency. Delve into topics such as instrumentation vs. sampling profilers, Java API profiling tools, hardware profiling, flame graphs, and interactive graphics for performance analysis.
A Simple Approach to Advanced JVM Profiling with Async-Profiler
Overview
Syllabus
Introduction
Who am I
Agenda
Why Profiling
Instrumentation Profilers
Sampling Profilers
Java API
Profiling Tools
Demo
Save Points
Common Problem
Async Get Call Trace API
Sleeping Threats
GetCallTrace
Hardware Profiling
Perf Events
Kernel API
Performance Reports
Spark Pages
PreserveFramePointerTM
Flame Graph
Interactive Graphics
Application Startup
Perf Limitations
Async Profiler
Download Async Profiler
Demo Time
Async vs JProfiler
Async Sampling Mode
Idea Ultimate Edition
Stream Builder Test
Socket Test
Buffer Size
Page Faults
Log Profiling
Questions
Reconnecting
Wall Clock Profiling
Taught by
IntelliJ IDEA by JetBrains
