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