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Screenshots

Home page

Home page

Summary

Displays running processes, memory and swap usage, and load averages, based on top outputs.

Summary page

Threads overview

High-level overview of threads' state over time. Includes pre-built filters and allows manual filtering with regular expressions by thread names or stack frames. Very colorful to make it obvious when a thread changes states.

Threads overview page Threads overview page with regexp filter

Thread details

On most pages clicking a thread's name will open a pop-up like below. It includes colored stack frames to make it easier to notice JDK methods, database calls, Atlassian's and 3rd party code.

Coloring stack traces

Flame graph

A classical flame graph with the ability to zoom by clicking on a frame

Flame graph

CPU consumers

Allows quickly finding threads that use the most CPU

CPU consumers page with filters

Similar stacks

Groups threads with similar stack traces, often helpful when debugging lock contention issues

Similar stack traces page with folded items

Stuck threads

Displays threads whose stack traces remained almost the same over time

Stuck threads with filters

Monitors

Displays locks ordered by the amount of threads waiting for them

Monitors page with filters