samply is a command line CPU profiler which uses the Firefox profiler as its UI.

samply works on macOS, Linux, and Windows.

In order to profile the execution of ./my-application, prepend samply record to the command invocation:

samply record ./my-application my-arguments

On Linux, samply uses perf events. You can grant temporary access by running:

echo '-1' | sudo tee /proc/sys/kernel/perf_event_paranoid

Visit the git repository for more information.