GFXReconstruct vs Tracy Profiler

GFXReconstruct is a free toolkit for capturing and replaying graphics API activity, including Vulkan and Direct3D 12. Capture records API calls, parameters, and state in a file; replay can run without the application that created it. The repository includes capture layers and libraries, replay, capture information, compression, SPIR-V extraction, conversion, and optimization tools. Listed uses include reproducing defects, examining API usage, profiling performance, regression testing, and platform bring-up. Vulkan capture and replay are listed for Windows, Linux, macOS, and Android, while Direct3D 12 capture and replay are listed for Windows only. The maker names Samsung Sokatoa, Arm Frame Advisor, Google Android Performance Analyzer, and Qualcomm Snapdragon Profiler as tools powered by GFXReconstruct. Vulkan users can also use it alongside Vulkan validation layers and the Vulkan Configurator. OpenXR support is experimental, covers limited features and a small number of apps, and is not enabled in the SDK-built version. Cross-operating-system replay may work in some cases, but is not generally supported unless specified. The project uses the MIT License.

Tracy Profiler is a remote profiler for games and other applications, built to capture telemetry in real time at nanosecond resolution. It combines CPU profiling with frame and sampling analysis, and supports C, C++, Lua, Python and Fortran integrations. GPU profiling covers OpenGL, Vulkan, Direct3D 11/12, Metal, OpenCL, CUDA and WebGPU. Tracy can also capture memory allocations, locks and context switches, and associate screenshots with recorded frames. A capture daemon can find Tracy clients over UDP and save each capture to a separate file; a separate tool merges multi-process traces. Merging preserves zones, messages and plots, but drops GPU zones, memory events and call stacks. Sampling can heuristically reconstruct zone call stacks. An optional assistant analyzes captured data with llama.cpp models and requires local setup. Tracy is free under the 3-clause BSD license. Platforms include Windows, Linux, macOS, Android, iOS and other listed environments; releases include PDF documentation and compiled Windows x64 binaries.