| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0 |
| # description: event tracing - enable/disable with subsystem level files |
| # flags: instance |
| |
| do_reset() { |
| echo > set_event |
| clear_trace |
| } |
| |
| fail() { #msg |
| echo $1 |
| exit_fail |
| } |
| |
| if [ ! -f set_event -o ! -d events/sched ]; then |
| echo "event tracing is not supported" |
| exit_unsupported |
| fi |
| |
| echo 'sched:*' > set_event |
| |
| yield |
| |
| count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` |
| if [ $count -lt 3 ]; then |
| fail "at least fork, exec and exit events should be recorded" |
| fi |
| |
| do_reset |
| |
| echo 1 > events/sched/enable |
| |
| yield |
| |
| count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` |
| if [ $count -lt 3 ]; then |
| fail "at least fork, exec and exit events should be recorded" |
| fi |
| |
| do_reset |
| |
| echo 0 > events/sched/enable |
| |
| yield |
| |
| count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` |
| if [ $count -ne 0 ]; then |
| fail "any of scheduler events should not be recorded" |
| fi |
| |
| exit 0 |
