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ftracetest: Do not use usleep directly

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The usleep is only provided on distros from Redhat so running ftracetest
on other distro resulted in failures due to the missing usleep.

The reason of using [u]sleep in the test was to generate (scheduler)
events.  It can be done various ways like this:

yield() {  ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1; }

For more information to the history of this patch, please refer to:

Link: http://lkml.kernel.org/r/1427329943-16896-1-git-send-email-namhyung@kernel.org

Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Reported-by: Luis Henriques <luis.henriques@canonical.com>
Suggested-by: Pádraig Brady <P@draigBrady.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
This commit is contained in:
Namhyung Kim 2015-04-03 09:27:58 +09:00 • committed by Shuah Khan
parent 6886f41d88
commit 2bfd4d1f8c
3 changed files with 33 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

13
tools/testing/selftests/ftrace/test.d/event/event-enable.tc
View file

@ -12,6 +12,10 @@ fail() { #msg
exit $FAIL exit $FAIL
} }
yield() {
ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
}
if [ ! -f set_event -o ! -d events/sched ]; then if [ ! -f set_event -o ! -d events/sched ]; then
echo "event tracing is not supported" echo "event tracing is not supported"
exit_unsupported exit_unsupported
@ -21,7 +25,8 @@ reset_tracer
do_reset do_reset
echo 'sched:sched_switch' > set_event echo 'sched:sched_switch' > set_event
usleep 1
yield
count=`cat trace | grep sched_switch | wc -l` count=`cat trace | grep sched_switch | wc -l`
if [ $count -eq 0 ]; then if [ $count -eq 0 ]; then
@ -31,7 +36,8 @@ fi
do_reset do_reset
echo 1 > events/sched/sched_switch/enable echo 1 > events/sched/sched_switch/enable
usleep 1
yield
count=`cat trace | grep sched_switch | wc -l` count=`cat trace | grep sched_switch | wc -l`
if [ $count -eq 0 ]; then if [ $count -eq 0 ]; then
@ -41,7 +47,8 @@ fi
do_reset do_reset
echo 0 > events/sched/sched_switch/enable echo 0 > events/sched/sched_switch/enable
usleep 1
yield
count=`cat trace | grep sched_switch | wc -l` count=`cat trace | grep sched_switch | wc -l`
if [ $count -ne 0 ]; then if [ $count -ne 0 ]; then

13
tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
View file

@ -12,6 +12,10 @@ fail() { #msg
exit $FAIL exit $FAIL
} }
yield() {
ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
}
if [ ! -f set_event -o ! -d events/sched ]; then if [ ! -f set_event -o ! -d events/sched ]; then
echo "event tracing is not supported" echo "event tracing is not supported"
exit_unsupported exit_unsupported
@ -21,7 +25,8 @@ reset_tracer
do_reset do_reset
echo 'sched:*' > set_event echo 'sched:*' > set_event
usleep 1
yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -lt 3 ]; then if [ $count -lt 3 ]; then
@ -31,7 +36,8 @@ fi
do_reset do_reset
echo 1 > events/sched/enable echo 1 > events/sched/enable
usleep 1
yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -lt 3 ]; then if [ $count -lt 3 ]; then
@ -41,7 +47,8 @@ fi
do_reset do_reset
echo 0 > events/sched/enable echo 0 > events/sched/enable
usleep 1
yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -ne 0 ]; then if [ $count -ne 0 ]; then

13
tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
View file

@ -12,6 +12,10 @@ fail() { #msg
exit $FAIL exit $FAIL
} }
yield() {
ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
}
if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then
echo "event tracing is not supported" echo "event tracing is not supported"
exit_unsupported exit_unsupported
@ -21,6 +25,9 @@ reset_tracer
do_reset do_reset
echo '*:*' > set_event echo '*:*' > set_event
yield
count=`cat trace | grep -v ^# | wc -l` count=`cat trace | grep -v ^# | wc -l`
if [ $count -eq 0 ]; then if [ $count -eq 0 ]; then
fail "none of events are recorded" fail "none of events are recorded"
@ -29,6 +36,9 @@ fi
do_reset do_reset
echo 1 > events/enable echo 1 > events/enable
yield
count=`cat trace | grep -v ^# | wc -l` count=`cat trace | grep -v ^# | wc -l`
if [ $count -eq 0 ]; then if [ $count -eq 0 ]; then
fail "none of events are recorded" fail "none of events are recorded"
@ -37,6 +47,9 @@ fi
do_reset do_reset
echo 0 > events/enable echo 0 > events/enable
yield
count=`cat trace | grep -v ^# | wc -l` count=`cat trace | grep -v ^# | wc -l`
if [ $count -ne 0 ]; then if [ $count -ne 0 ]; then
fail "any of events should not be recorded" fail "any of events should not be recorded"