Fully featured low overhead profiler for Java EE and Java SE platforms.

Monitoring and profiling solution for Gradle, Maven, Ant, JUnit and TestNG.

Easy to use performance and memory profiler for .NET framework.

YourKit Java Profiler Help

1 Running the profiler
2 Running applications with the profiler

2.1 Local profiling
2.2 Remote profiling

2.2.1 Remote profiling from user interface
2.2.2 Console Java EE server integration wizard
2.2.3 Console attach wizard

2.3 Startup options
2.4 Attaching profiler agent to a running JVM
2.5 Profiling overhead: how to reduce or avoid
2.6 Enabling profiling manually
2.7 About JVMTI (advanced topic)

5.3.1 GC roots

5.4 Excessive garbage allocation
5.5 Out of memory error (OutOfMemoryError and -XX:+HeapDumpOnOutOfMemoryError)

6 CPU profiling

6.1 CPU usage telemetry
6.2 Start CPU profiling. Sampling, tracing, call counting.
6.3 CPU sampling settings
6.4 CPU tracing settings
6.5 CPU view
6.6 Callees list view
6.7 Method merged callees view
6.8 Method back traces view
6.9 Java EE high-level statistics
6.10 What-if: an ability to ignore particular methods or focus on particular methods only
6.11 Comparing performance snapshots
6.12 CPU usage estimation

9.5.1 Objects view

9.5.1.1 Class list
9.5.1.2 Class and package
9.5.1.3 Class loaders
9.5.1.4 Web applications
9.5.1.5 Object generations
9.5.1.6 Reachability scopes
9.5.1.7 Shallow size
9.5.1.8 Object explorer
9.5.1.9 Biggest objects (dominators)
9.5.1.10 Allocations
9.5.1.11 Object ages
9.5.1.12 Merged paths
9.5.1.13 Class hierarchy

9.5.2 Method merged callees view
9.5.3 Method back traces view
9.5.4 Quick info view
9.5.5 GC roots view
9.5.6 Leak detection: working with paths

10 Garbage collection
11 Monitor profiling
12 Exception telemetry
13 Probes: monitor events of various kinds

13.1 Events in user interface

13.1.1 Events by Table

13.1.1.1 Profiler events in table 'Messages'

13.2 Event inspections
13.3 Built-in probes

13.3.1 com.yourkit.probes.builtin.Threads
13.3.2 Class loading probe
13.3.3 com.yourkit.probes.builtin.AwtEvents
13.3.4 com.yourkit.probes.builtin.Messages

13.4 Probe classes

13.4.1 Compiling probe classes
13.4.2 Probe registration, activity modes
13.4.3 Probe unregistration

13.5 Monitoring method invocation events

13.5.1 Probe class annotation @MethodPattern
13.5.2 Callback onEnter()
13.5.3 Callback onReturn()
13.5.4 Callbacks onUncaughtException() and onUncaughtExceptionExt()
13.5.5 Parameter annotation @Param
13.5.6 Parameter annotation @Params
13.5.7 Parameter annotation @This
13.5.8 Parameter annotation @ClassRef
13.5.9 Parameter annotation @MethodName
13.5.10 Parameter annotation @MethodParameterTypes
13.5.11 Parameter annotation @MethodSignature
13.5.12 Parameter annotation @OnEnterResult
13.5.13 Parameter annotation @ReturnValue
13.5.14 Parameter annotation @ThrownException
13.5.15 Probe application rules

13.6 Data storage

14 Performance charts
15 Inspections: automatic recognition of typical problems
16 Automatically trigger actions on event

17 Summary, snapshot annotation, automatic deobfuscation
18 IDE integration

18.1 Eclipse
18.2 Completing Eclipse plugin installation

18.2.1 Completing Eclipse 3.5-4.x plugin installation
18.2.2 Completing MyEclipse 2014 or newer plugin installation
18.2.3 Completing MyEclipse 8.5-2013 plugin installation

19 Time measurement (CPU time, wall time)
20 Filters
21 Snapshot directory customization
22 Export of profiling results to HTML, CSV, XML, plain text
23 Profiler API
24 Command line tool to control profiling
25 FAQ: How to profile in my scenario?

25.1 Profiling in Docker container
25.2 Profiling in Amazon EC2 instance