Optick vs Tracy Profiler

Optick is a free C++ profiler for game performance analysis and optimization. Its tools include instrumentation, context-switch tracing, sampling, CPU profiling, frame-time analysis and GPU counters. Developers can integrate it with OPTICK_FRAME, OPTICK_EVENT and OPTICK_THREAD macros. Context tracing uses ETW on Windows, FTrace on Linux and DTrace on macOS; GPU profiling supports D3D12 and Vulkan on Windows, and Vulkan on Linux and macOS. Desktop build configurations are listed for Windows x64, Linux x64 and macOS x64. Optick also offers Unreal Engine 4 and Unreal Engine 5 plugins; its v1.4.0 release added Unreal Engine 5.0 support, and Android support in the core appears in v1.3.0 release notes. The configuration header can enable or disable features for particular platforms or builds, including disabling Optick in final builds. With multiple DLLs in one executable, Optick must be added to a shared dynamic library compiled with OPTICK_EXPORT; static linking will not work. The MIT license permits use, copying, modification, publication and distribution, and provides the software without warranty.

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.