Have you configured tracing?

Yes, in Go you can configure tracing using the runtime/trace package. Tracing allows collecting detailed information about program execution: scheduler, system calls, locks, goroutine activity, etc.

Example of starting a trace:

import (
    "os"
    "runtime/trace"
    "log"
)

func main() {
    f, err := os.Create("trace.out")
    if err != nil {
        log.Fatal(err)
    }
    defer f.Close()

    err = trace.Start(f)
    if err != nil {
        log.Fatal(err)
    }
    defer trace.Stop()

    // program code
}

The resulting file can then be analyzed using go tool trace trace.out for visualization and bottleneck identification.