func main() {
runtime.LockOSThread()
t := thread.Current()
fmt.Println("Current thread:", t)
var p sched.Param
policy, err := t.SchedPolicy()
checkErr(err)
err = t.SchedParam(&p)
checkErr(err)
fmt.Printf("Current policy/priority: %s/%d\n", policy, p.Priority)
p.Priority = sched.FIFO.MaxPriority()
err = t.SetSchedPolicy(sched.FIFO, &p)
checkErr(err)
policy, err = t.SchedPolicy()
checkErr(err)
err = t.SchedParam(&p)
checkErr(err)
fmt.Printf("New policy/priority: %s/%d\n", policy, p.Priority)
}
func setRealtimeSched(what string, prio100 int) {
runtime.LockOSThread()
if os.Geteuid() != 0 {
fmt.Fprintln(os.Stderr, what+": can't set realtime scheduling: no root priv.")
return
}
t := thread.Current()
fmt.Fprintf(
os.Stderr,
"%s: realtime sheduling prio %d%% for thread %d",
what, prio100, t,
)
p := sched.Param{
Priority: sched.FIFO.MaxPriority() * prio100 / 100,
}
checkErr(t.SetSchedPolicy(sched.FIFO, &p))
}