1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 # description: event tracing - enable/disable with subsystem level files
4 # requires: set_event events/sched/enable
5 # flags: instance
6
7 do_reset() {
8 echo > set_event
9 clear_trace
10 }
11
12 fail() { #msg
13 echo $1
14 exit_fail
15 }
16
17 echo 'sched:*' > set_event
18
19 yield
20
21 count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
22 if [ $count -lt 3 ]; then
23 fail "at least fork, exec and exit events should be recorded"
24 fi
25
26 do_reset
27
28 echo 1 > events/sched/enable
29
30 yield
31
32 count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
33 if [ $count -lt 3 ]; then
34 fail "at least fork, exec and exit events should be recorded"
35 fi
36
37 do_reset
38
39 echo 0 > events/sched/enable
40
41 yield
42
43 count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
44 if [ $count -ne 0 ]; then
45 fail "any of scheduler events should not be recorded"
46 fi
47
48 exit 0
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