Fully featured low overhead profiler for Java EE
and Java SE platforms.
and Java SE platforms.
Easy to use performance and memory profiler for .NET framework.
Supports ASP.NET, Silverlight, .NET Windows services and more.
Supports ASP.NET, Silverlight, .NET Windows services and more.
YourKit Java Profiler Help
- 1 Running the profiler
- 2 Running applications with the profiler
- 2.1 Local profiling
- 2.2 Remote profiling
- 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)
- 3 Connect to profiled application
- 4 Solving performance problems
- 4.1 Performance bottlenecks
- 4.2 Optimizing memory usage
- 4.3 Memory leaks
- 4.3.1 GC roots
- 4.4 Excessive garbage allocation
- 4.5 Out of memory error (OutOfMemoryError and -XX:+HeapDumpOnOutOfMemoryError)
- 5 CPU profiling
- 5.1 CPU usage telemetry
- 5.2 Start CPU profiling. Sampling, tracing, call counting.
- 5.3 CPU sampling settings
- 5.4 CPU tracing settings
- 5.5 CPU view
- 5.6 Callees list view
- 5.7 Method merged callees view
- 5.8 Method back traces view
- 5.9 Java EE high-level statistics
- 5.10 What-if: an ability to ignore particular methods or focus on particular methods only
- 5.11 Comparing performance snapshots
- 5.12 CPU usage estimation
- 6 Threads
- 7 Deadlock detector
- 8 Memory profiling
- 8.1 Memory telemetry
- 8.2 Memory snapshot
- 8.3 Object allocation recording
- 8.4 Shallow and retained sizes
- 8.5 Memory views
- 8.5.1 Objects view
- 8.5.1.1 Class list
- 8.5.1.2 Class and package
- 8.5.1.3 Class loaders
- 8.5.1.4 Web applications
- 8.5.1.5 Object generations
- 8.5.1.6 Reachability scopes
- 8.5.1.7 Shallow size
- 8.5.1.8 Object explorer
- 8.5.1.9 Biggest objects (dominators)
- 8.5.1.10 Allocations
- 8.5.1.11 Object ages
- 8.5.1.12 Merged paths
- 8.5.1.13 Class hierarchy
- 8.5.2 Method merged callees view
- 8.5.3 Method back traces view
- 8.5.4 Quick info view
- 8.5.5 GC roots view
- 8.5.6 Leak detection: working with paths
- 8.6 Memory inspections
- 8.7 Comparing memory snapshots
- 8.8 Support of HPROF format snapshots
- 8.9 Values of primitive types
- 8.10 Useful actions
- 8.11 Set description language
- 9 Garbage collection
- 10 Monitor profiling
- 11 Exception telemetry
- 12 Probes: monitor events of various kinds
- 12.1 Events in user interface
- 12.1.1 Events by Table
- 12.1.1.1 Profiler events in table 'Messages'
- 12.1.2 Event Timeline
- 12.1.3 Event Timeline Chart
- 12.1.4 Event Call Tree
- 12.1.5 Event stack traces
- 12.1.6 Navigation between views
- 12.1.7 Events in range
- 12.2 Event inspections
- 12.3 Built-in probes
- 12.3.1 com.yourkit.probes.builtin.Threads
- 12.3.2 Class loading probe
- 12.3.3 com.yourkit.probes.builtin.AWTEvents
- 12.3.4 com.yourkit.probes.builtin.Messages
- 12.4 Probe classes
- 12.4.1 Compiling probe classes
- 12.4.2 Probe registration, activity modes
- 12.4.3 Probe unregistration
- 12.5 Monitoring method invocation events
- 12.5.1 Probe class annotation @MethodPattern
- 12.5.2 Callback onEnter()
- 12.5.3 Callback onReturn()
- 12.5.4 Callbacks onUncaughtException() and onUncaughtExceptionExt()
- 12.5.5 Parameter annotation @Param
- 12.5.6 Parameter annotation @Params
- 12.5.7 Parameter annotation @This
- 12.5.8 Parameter annotation @ClassRef
- 12.5.9 Parameter annotation @MethodName
- 12.5.10 Parameter annotation @MethodParameterTypes
- 12.5.11 Parameter annotation @MethodSignature
- 12.5.12 Parameter annotation @OnEnterResult
- 12.5.13 Parameter annotation @ReturnValue
- 12.5.14 Parameter annotation @ThrownException
- 12.5.15 Probe application rules
- 12.6 Data storage
- 12.6.1 Tables, rows, columns
- 12.6.2 Lasting events and point events
- 12.6.3 Table API
- 12.6.4 Scalability
- 13 Performance charts
- 14 Inspections: automatic recognition of typical problems
- 15 Automatically trigger actions on event
- 16 Summary, snapshot annotation, automatic deobfuscation
- 17 IDE integration
- 17.1 Eclipse
- 17.2 Completing Eclipse plugin installation
- 17.2.1 Completing Eclipse 3.5-4.x plugin installation
- 17.2.2 Completing Eclipse 3.4 plugin installation
- 17.2.3 Completing MyEclipse 2014 or newer plugin installation
- 17.2.4 Completing MyEclipse 8.5-2013 plugin installation
- 17.2.5 Completing MyEclipse 7.5-8.0 plugin installation
- 17.3 IntelliJ IDEA
- 17.4 NetBeans
- 17.5 JDeveloper
- 18 Time measurement (CPU time, wall time)
- 19 Filters
- 20 Snapshot directory customization
- 21 Export of profiling results to HTML, CSV, XML, plain text
- 22 Profiler API
- 23 Command line tool to control profiling