test-stat-group

   1 [config]
   2 command = stat
   3 args    = --group -e cycles,instructions kill >/dev/null 2>&1
   4 ret     = 1
   5
   6 [event-1:base-stat]
   7 fd=1
   8 group_fd=-1
   9 read_format=3|15
  10
  11 [event-2:base-stat]
  12 fd=2
  13 group_fd=1
  14 config=1
  15 disabled=0
  16 enable_on_exec=0
  17 read_format=3|15