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

Easy to use performance and memory .NET profiler for Windows and Linux.

Performance monitoring and profiling of Jenkins, Bamboo, TeamCity, Gradle, Maven, Ant and JUnit.

YourKit Java Profiler Help

1 Running the profiler
2 Profiler activation
3 Running applications with the profiler

3.1 Local profiling
3.2 Remote profiling

3.2.1 Remote profiling from user interface
3.2.2 Console Java EE server integration wizard
3.2.3 Console attach wizard

3.3 Startup options
3.4 Attaching profiler agent to a running JVM
3.5 Profiling overhead: how to reduce or avoid
3.6 Enabling profiling manually
3.7 About JVMTI

6.3.1 GC roots

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

7 CPU profiling

7.7 What-if: an ability to ignore particular methods or focus on particular methods only
7.8 Comparing performance snapshots
7.9 Sampling settings
7.10 Tracing settings

10.5.1 Objects view

10.5.1.1 Class list
10.5.1.2 Class and package
10.5.1.3 Class loaders
10.5.1.4 Web applications
10.5.1.5 Object generations
10.5.1.6 Reachability scopes
10.5.1.7 Shallow size
10.5.1.8 Object explorer
10.5.1.9 Biggest objects (dominators)
10.5.1.10 Allocations
10.5.1.11 Object ages
10.5.1.12 Merged paths
10.5.1.13 Class hierarchy

10.5.2 Method merged callees view
10.5.3 Method back traces view
10.5.4 Quick info view
10.5.5 GC roots view
10.5.6 Leak detection: working with paths

10.6 Memory inspections
10.7 Comparing memory snapshots
10.8 Support of HPROF format snapshots
10.9 Support of Portable Heap Dumps (.phd)
10.10 Values of primitive types
10.11 Persistent object IDs
10.12 Useful actions
10.13 Set description language

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

14.1 Events in user interface

14.1.1 Events by Table

14.1.1.1 Profiler events in table 'Messages'

14.2 Event inspections
14.3 Built-in probes

14.3.1 com.yourkit.probes.builtin.Threads
14.3.2 Class loading probe
14.3.3 com.yourkit.probes.builtin.AwtEvents

14.4 Probe classes

14.4.1 Compiling probe classes
14.4.2 Probe registration, activity modes
14.4.3 Probe unregistration

14.5 Monitoring method invocation events

14.5.1 Probe class annotation @MethodPattern
14.5.2 Callback onEnter()
14.5.3 Callback onReturn()
14.5.4 Callbacks onUncaughtException() and onUncaughtExceptionExt()
14.5.5 Parameter annotation @Param
14.5.6 Parameter annotation @Params
14.5.7 Parameter annotation @This
14.5.8 Parameter annotation @ClassRef
14.5.9 Parameter annotation @MethodName
14.5.10 Parameter annotation @MethodParameterTypes
14.5.11 Parameter annotation @MethodSignature
14.5.12 Parameter annotation @OnEnterResult
14.5.13 Parameter annotation @ReturnValue
14.5.14 Parameter annotation @ThrownException
14.5.15 Probe application rules

14.6 Data storage

15 Performance Charts
16 Inspections: automatic recognition of typical problems
17 Automatically trigger actions on event

18 Summary, snapshot annotation, automatic deobfuscation
19 IDE integration

19.1 Eclipse
19.2 Completing Eclipse plugin installation

19.2.1 Completing Eclipse 3.4 - 2021-03 plugin installation
19.2.2 Completing MyEclipse 2014 or newer plugin installation
19.2.3 Completing MyEclipse 8.5-2013 plugin installation

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

26.1 Profiling in Docker container
26.2 Profiling in Amazon EC2 instance

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