#!/usr/bin/env stap

global start_ts

probe begin {
    start_ts = gettimeofday_us()
    printf("%12s  %3s  %5s  %5s  %-16s  ACTION\n",
            "TIMESTAMP", "CPU", "PID", "TID", "EXECNAME")
}

function report(action:string) {
    printf("%3d  %12d  %5d  %5d  %-16s  %s\n",
            gettimeofday_us() - start_ts, cpu(),
            pid(), tid(), execname(), action)
}

probe scheduler.cpu_off {
    report(sprintf("cpu_off%s", idle? " [idle]" : ""))
}

probe scheduler.cpu_on {
    report(sprintf("cpu_on%s", idle? " [idle]" : ""))
}

probe scheduler.tick {
    report(sprintf("tick%s", idle? " [idle]" : ""))
}

probe scheduler.migrate {
    report("migrate")
}

probe scheduler.balance {
    report("balance")
}