1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 # description: event trigger - test multiple histogram triggers
4 # requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist
5 # flags: instance
6
7 fail() { #msg
8 echo $1
9 exit_fail
10 }
11
12 echo "Test histogram multiple triggers"
13
14 echo 'hist:keys=parent_pid:vals=child_pid' > events/sched/sched_process_fork/trigger
15 echo 'hist:keys=parent_comm:vals=child_pid' >> events/sched/sched_process_fork/trigger
16 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
17 grep parent_pid events/sched/sched_process_fork/hist > /dev/null || \
18 fail "hist trigger on sched_process_fork did not work"
19 grep child events/sched/sched_process_fork/hist > /dev/null || \
20 fail "hist trigger on sched_process_fork did not work"
21 COMM=`cat /proc/$$/comm`
22 grep "parent_comm: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
23 fail "string key on sched_process_fork did not work"
24
25 reset_trigger
26
27 echo "Test histogram with its name"
28
29 echo 'hist:name=test_hist:keys=common_pid' > events/sched/sched_process_fork/trigger
30 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
31 grep test_hist events/sched/sched_process_fork/hist > /dev/null || \
32 fail "named event on sched_process_fork did not work"
33
34 echo "Test same named histogram on different events"
35
36 echo 'hist:name=test_hist:keys=common_pid' > events/sched/sched_process_exit/trigger
37 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
38 grep test_hist events/sched/sched_process_exit/hist > /dev/null || \
39 fail "named event on sched_process_fork did not work"
40
41 diffs=`diff events/sched/sched_process_exit/hist events/sched/sched_process_fork/hist | wc -l`
42 test $diffs -eq 0 || fail "Same name histograms are not same"
43
44 exit 0
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