There are 2 repositories under perf-events topic.
A non-sampling profiler purpose built to measure and optimize performance of C++ low latency/real time systems
This is a tool for Linux kernel ftrace and perf events visualization
Micro-benchmarking library for C and C++ with PMU counters tracking
eBPF Tools - Tool for monitoring, performance benchmarking and tracing linux kernel
Open Power Performance Analysis Tool
Provides access to the performance monitoring counters exposed by the Linux perf_events kernel API.