ftracetest: Do not use usleep directly

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

View File

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

View File

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

View File

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