ftracetest: Add instance created, delete, read and enable event test

Add a new ftrace test that creates three threads. One that creates and
removes an ftrace instance, one that reads the instance, and one that enables
and disables events in the instance. This is a stress test for accessing and
removing instances at the same time.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2016-05-09 18:10:00 -04:00 committed by Steven Rostedt
parent 0fc1b09ff1
commit 91e6f1ce86
1 changed files with 143 additions and 0 deletions

View File

@ -0,0 +1,143 @@
#!/bin/sh
# description: Test creation and deletion of trace instances while setting an event
if [ ! -d instances ] ; then
echo "no instance directory with this kernel"
exit_unsupported;
fi
fail() { # mesg
rmdir foo 2>/dev/null
echo $1
set -e
exit $FAIL
}
cd instances
# we don't want to fail on error
set +e
mkdir x
rmdir x
result=$?
if [ $result -ne 0 ]; then
echo "instance rmdir not supported"
exit_unsupported
fi
instance_slam() {
while :; do
mkdir foo 2> /dev/null
rmdir foo 2> /dev/null
done
}
instance_read() {
while :; do
cat foo/trace 1> /dev/null 2>&1
done
}
instance_set() {
while :; do
echo 1 > foo/events/sched/sched_switch
done 2> /dev/null
}
instance_slam &
p1=$!
echo $p1
instance_set &
p2=$!
echo $p2
instance_read &
p3=$!
echo $p3
sleep 1
kill -1 $p3
kill -1 $p2
kill -1 $p1
echo "Wait for processes to finish"
wait $p1 $p2 $p3
echo "all processes finished, wait for cleanup"
sleep 1
mkdir foo
ls foo > /dev/null
rmdir foo
if [ -d foo ]; then
fail "foo still exists"
fi
exit 0
instance_slam() {
while :; do
mkdir x
mkdir y
mkdir z
rmdir x
rmdir y
rmdir z
done 2>/dev/null
}
instance_slam &
x=`jobs -l`
p1=`echo $x | cut -d' ' -f2`
echo $p1
instance_slam &
x=`jobs -l | tail -1`
p2=`echo $x | cut -d' ' -f2`
echo $p2
instance_slam &
x=`jobs -l | tail -1`
p3=`echo $x | cut -d' ' -f2`
echo $p3
instance_slam &
x=`jobs -l | tail -1`
p4=`echo $x | cut -d' ' -f2`
echo $p4
instance_slam &
x=`jobs -l | tail -1`
p5=`echo $x | cut -d' ' -f2`
echo $p5
ls -lR >/dev/null
sleep 1
kill -1 $p1
kill -1 $p2
kill -1 $p3
kill -1 $p4
kill -1 $p5
echo "Wait for processes to finish"
wait $p1 $p2 $p3 $p4 $p5
echo "all processes finished, wait for cleanup"
mkdir x y z
ls x y z
rmdir x y z
for d in x y z; do
if [ -d $d ]; then
fail "instance $d still exists"
fi
done
set -e
exit 0