1 #!/bin/sh 2 # description: event trigger - test histogram trigger 3 4 do_reset() { 5 reset_trigger 6 echo > set_event 7 clear_trace 8 } 9 10 fail() { #msg 11 do_reset 12 echo $1 13 exit $FAIL 14 } 15 16 if [ ! -f set_event -o ! -d events/sched ]; then 17 echo "event tracing is not supported" 18 exit_unsupported 19 fi 20 21 if [ ! -f events/sched/sched_process_fork/trigger ]; then 22 echo "event trigger is not supported" 23 exit_unsupported 24 fi 25 26 if [ ! -f events/sched/sched_process_fork/hist ]; then 27 echo "hist trigger is not supported" 28 exit_unsupported 29 fi 30 31 reset_tracer 32 do_reset 33 34 echo "Test histogram basic tigger" 35 36 echo 'hist:keys=parent_pid:vals=child_pid' > events/sched/sched_process_fork/trigger 37 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done 38 grep parent_pid events/sched/sched_process_fork/hist > /dev/null || \ 39 fail "hist trigger on sched_process_fork did not work" 40 grep child events/sched/sched_process_fork/hist > /dev/null || \ 41 fail "hist trigger on sched_process_fork did not work" 42 43 reset_trigger 44 45 echo "Test histogram with compound keys" 46 47 echo 'hist:keys=parent_pid,child_pid' > events/sched/sched_process_fork/trigger 48 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done 49 grep '^{ parent_pid:.*, child_pid:.*}' events/sched/sched_process_fork/hist > /dev/null || \ 50 fail "compound keys on sched_process_fork did not work" 51 52 reset_trigger 53 54 echo "Test histogram with string key" 55 56 echo 'hist:keys=parent_comm' > events/sched/sched_process_fork/trigger 57 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done 58 COMM=`cat /proc/$$/comm` 59 grep "parent_comm: $COMM" events/sched/sched_process_fork/hist > /dev/null || \ 60 fail "string key on sched_process_fork did not work" 61 62 reset_trigger 63 64 echo "Test histogram with sort key" 65 66 echo 'hist:keys=parent_pid,child_pid:sort=child_pid.ascending' > events/sched/sched_process_fork/trigger 67 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done 68 69 check_inc() { 70 while [ $# -gt 1 ]; do 71 [ $1 -gt $2 ] && return 1 72 shift 1 73 done 74 return 0 75 } 76 check_inc `grep -o "child_pid:[[:space:]]*[[:digit:]]*" \ 77 events/sched/sched_process_fork/hist | cut -d: -f2 ` || 78 fail "sort param on sched_process_fork did not work" 79 80 do_reset 81 82 exit 0 83
