Profiling/Benchmarking ToolsC++ ProfilersC++ Profilers

GNU Profiler (gprof) Quick Tutorial	ubiquitous free software some IDEs can present gprof results in a GUI
Intel VTune Amplifier	free of charge GUI & command line interface sampling-based profiling hardware event sampling for Intel chips locks & waits analysis memory access analysis storage analysis integrates with MS Visual Studio
OProfile
perf Official Tutorial Tutorial	free software
Valgrind (cachegrind, callgrind)	free software
Apple Instruments	part of XCode
NVIDIA Nsight Compute	Host: profiling for NVIDIA GPUs (architectures: Paspal, Volta, Turing) supplants NVIDIA Visual Profiler
DTrace	free software
Optick	instrumentation-based and sampling-based profiling GPU counters
GlowCode
SmartBear AQTime
Arm MAP
Oracle Performance Analyzer
Easy Profiler

Google Benchmark	Apache-2.0
gperftools (originally Google Performance Tools)	BSD-3-Clause high-performance multithreaded `malloc()` heap checker heap profiler cpu profiler
Celero	Apache-2.0
`plf::nanotimer`	zlib simple, cross-platform microsecond-precision timer class