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.

Time measurement (CPU time, wall time)

There are two ways to measure time:

  • CPU time - the time actually spent by CPU executing method code
  • Wall time - the real-world time elapsed between method entry and method exit. If there are other threads/processes concurrently running on the system, they can affect the results.

CPU profiling

You can customize CPU vs wall time measurement in CPU sampling settings and CPU tracing settings. By default, sampling measures wall time for I/O and sleep methods only, tracing - for all methods. Due to the nature of asynchronous sampling it can measure only CPU time.

Monitor profiling

Monitor profiling measures wall time for all waits and blocks.

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