profile_time.stp

global total_time, entry_time

probe begin {
  printf("================================================ Syslog Monitoring Started\n")
}
#probe module("nfs").function("*")
#{
#    entry_time[pid(), tid()] = gettimeofday_us()
#}
#probe module("nfs").function("*").return
#{
#    total_time[execname(), pid(), probefunc()] += gettimeofday_us() - entry_time[pid(), tid()]
#}

probe module("ext4").function("*")
{
    entry_time[pid(), tid()] = gettimeofday_us()
}
probe module("ext4").function("*").return
{
    total_time[execname(), pid(), probefunc()] += gettimeofday_us() - entry_time[pid(), tid()]
}
probe kernel.function("generic_file_read_iter")
{
    entry_time[pid(), tid()] = gettimeofday_us()
}
probe kernel.function("generic_file_read_iter").return
{
    total_time[execname(), pid(), probefunc()] += gettimeofday_us() - entry_time[pid(), tid()]
}

probe end {
  foreach ([exec, pid, func] in total_time- limit 100){
    printf ("%d %s(%d) %s\n", total_time[exec, pid, func], exec, pid, func)
  }
  printf("\n")
  delete total_time

  exit()
  printf("================================================ end\n")
}