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2024-10-10 21:00:02

Profile Explorer is a tool for viewing CPU profiling traces collected through the Event Tracing for Windows (ETW) infrastructure on machines with x64 and ARM64 CPUs. Its focus is on presenting the slowest parts of the profiled application through an easy-to-use but detailed UI consisting of several views, such as a hot function list, flame graph, call tree, timeline, assembly code view, and source file view.

The application can be viewed as a companion to Windows Performance Analyzer (WPA), offering some unique features based on the binary analysis it performs and the IDE-like UI, such as easy navigation through disassembly, improved mapping to source lines, displaying the function control-flow graph, viewing of multiple functions at the same time, marking, searching, filtering and much more.

One of the app's key advantages is its performance. It loads traces fast and offers near-instant UI interaction, even for very large traces (over 10 GB ETL files). Most profile processing steps and algorithms are multi-threaded and don't block the UI.