perfcnt

A library to program performance counters in rust.

Documentation

• API Documentation
• See the examples/ directory for more code-snippets on how to use the library to create counters.

Provided Programs

• perfcnt-list: Lists all architecture specific events available on the current machine (currently only supports Intel x86).

Known limitations

• Linux support without breakpoints and tracepoints
• No Windows or MacOS X support
• Missing raw AMD and ARM aarch64 events

Linux Kernel Capabilities

• Generally, this requires the CAP_PERFMON and CAP_SYS_PTRACE capabilities to run
• On Kubernetes/Docker these are referred to as PERFMON and SYS_PTRACE