Java Profiler

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

.NET Profiler

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

Connection Broker

Secure and easy profiling in cloud, containers and clustered environments.

YouMonitor

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

YourKit Java Profiler help

7.1 IDE integration

7.1.1 Eclipse
7.1.2 IntelliJ IDEA
7.1.3 JDeveloper
7.1.4 MyEclipse
7.1.5 NetBeans

7.2 Java server integration wizard
7.3 Attach profiler to a running application
7.4 Remote profiling

7.5 Profiling in Docker container

8 Profiling overhead: how to reduce or avoid
9 Snapshots

9.1 Snapshot directory customization
9.2 Snapshot annotation
9.3 Performance snapshot
9.4 Comparing performance snapshots
9.5 Memory snapshot
9.6 Comparing memory snapshots
9.7 Support of HPROF (Heap Profiler) snapshots
9.8 Support of IBM PHD (Portable Heap Dumps) snapshots
9.9 Support of JFR (Java Flight Recorder) snapshots

10 Solving performance problems

10.1 Performance bottlenecks
10.2 Optimizing memory usage
10.3 Memory leaks
10.4 Excessive garbage allocation
10.5 Out of memory error (OutOfMemoryError and -XX:+HeapDumpOnOutOfMemoryError)
10.6 Solving 'java.lang.OutOfMemoryError: PermGen space' error

11 CPU profiling

11.1 CPU and wall times when profiling Java applications
11.2 CPU profiling modes
11.3 CPU usage estimation
11.4 CPU sampling
11.5 Asynchronous CPU sampling
11.6 CPU sampling settings
11.7 CPU tracing
11.8 CPU tracing settings
11.9 Call counting
11.10 CPU tab

11.11 What-if: an ability to ignore particular methods or focus on particular methods only

14.6.6.1 Class
14.6.6.2 Class and package
14.6.6.3 Class loader
14.6.6.4 Web application
14.6.6.5 Generation
14.6.6.6 Reachability
14.6.6.7 Shallow size

14.6.7 Allocations

14.6.8 Method merged callees view
14.6.9 Method back traces view
14.6.10 Quick info view
14.6.11 Leak detection: working with paths
14.6.12 Merged paths
14.6.13 Class hierarchy

15 Garbage collection
16 Monitor profiling
17 Exception profiling
18 Performance charts
19 Probes: monitor events of various kinds

19.1 Events in user interface

19.1.1 Event Table

19.1.1.1 Profiler events in table 'Messages'

19.2 Event inspections
19.3 Built-in probes

19.3.1 com.yourkit.probes.builtin.Threads
19.3.2 Class loading probe
19.3.3 com.yourkit.probes.builtin.AwtEvents

19.4 Probe classes

19.4.1 Compiling probe classes
19.4.2 Probe registration, activity modes
19.4.3 Probe unregistration

19.5 Monitoring method invocation events

19.5.1 Probe class annotation @MethodPattern
19.5.2 Callback onEnter()
19.5.3 Callback onReturn()
19.5.4 Callback onExit()
19.5.5 Callbacks onUncaughtException() and onUncaughtExceptionExt()
19.5.6 Parameter annotation @Param
19.5.7 Parameter annotation @Params
19.5.8 Parameter annotation @This
19.5.9 Parameter annotation @ClassRef
19.5.10 Parameter annotation @MethodName
19.5.11 Parameter annotation @MethodTimeMs
19.5.12 Parameter annotation @MethodTimeNs
19.5.13 Parameter annotation @MethodParameterTypes
19.5.14 Parameter annotation @MethodSignature
19.5.15 Parameter annotation @OnEnterResult
19.5.16 Parameter annotation @ReturnValue
19.5.17 Parameter annotation @ThrownException
19.5.18 Probe application rules

19.6 Data storage

20 Inspections: automatic recognition of typical problems
21 Automatically trigger actions on event

22 Automatic deobfuscation
23 Summary
24 Filters
25 Profiler command line
26 Command line tool to control profiling
27 Export of profiling results to external formats
28 Profiler Java API
29 Profiler HTTP API
30 Settings

30.1 Proxy

31 Troubleshooting and FAQ

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