SIGINFO (Ctrl+t) to dump live metrics in go

siginfo.go

// Send SIGINFO (Ctrl+t on the shell, or kill -info <pid>)
// To dump live metrics
go func() {
    sigs := make(chan os.Signal, 1)
    signal.Notify(sigs, syscall.SIGINFO)
    for range sigs {
        duration := time.Since(start)

        // obviously adapt this next line to your need :)
        logger.Info(fmt.Sprintf("Processed %d jobs in %s; Throughput=%.4f/s\n", nbprocessed, duration.String(), float64(nbprocessed)/duration.Seconds()))
		
        // The list of existing goroutines (running or blocked)
        // and their location in the code
        fmt.Printf("Goroutines: %d\n", runtime.NumGoroutine())
        _ = pprof.Lookup("goroutine").WriteTo(os.Stdout, 2)
    
        // anything else!
        // ...
    }
}()