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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>
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3 changed files with 33 additions and 6 deletions
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@ -12,6 +12,10 @@ fail() { #msg
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exit $FAIL
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}
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yield() {
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ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
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}
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if [ ! -f set_event -o ! -d events/sched ]; then
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echo "event tracing is not supported"
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exit_unsupported
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@ -21,7 +25,8 @@ reset_tracer
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do_reset
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echo 'sched:sched_switch' > set_event
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usleep 1
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yield
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count=`cat trace | grep sched_switch | wc -l`
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if [ $count -eq 0 ]; then
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@ -31,7 +36,8 @@ fi
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do_reset
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echo 1 > events/sched/sched_switch/enable
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usleep 1
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yield
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count=`cat trace | grep sched_switch | wc -l`
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if [ $count -eq 0 ]; then
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@ -41,7 +47,8 @@ fi
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do_reset
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echo 0 > events/sched/sched_switch/enable
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usleep 1
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yield
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count=`cat trace | grep sched_switch | wc -l`
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if [ $count -ne 0 ]; then
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@ -12,6 +12,10 @@ fail() { #msg
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exit $FAIL
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}
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yield() {
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ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
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}
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if [ ! -f set_event -o ! -d events/sched ]; then
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echo "event tracing is not supported"
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exit_unsupported
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@ -21,7 +25,8 @@ reset_tracer
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do_reset
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echo 'sched:*' > set_event
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usleep 1
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yield
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count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
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if [ $count -lt 3 ]; then
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@ -31,7 +36,8 @@ fi
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do_reset
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echo 1 > events/sched/enable
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usleep 1
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yield
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count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
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if [ $count -lt 3 ]; then
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@ -41,7 +47,8 @@ fi
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do_reset
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echo 0 > events/sched/enable
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usleep 1
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yield
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count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
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if [ $count -ne 0 ]; then
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@ -12,6 +12,10 @@ fail() { #msg
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exit $FAIL
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}
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yield() {
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ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
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}
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if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then
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echo "event tracing is not supported"
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exit_unsupported
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@ -21,6 +25,9 @@ reset_tracer
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do_reset
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echo '*:*' > set_event
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yield
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count=`cat trace | grep -v ^# | wc -l`
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if [ $count -eq 0 ]; then
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fail "none of events are recorded"
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@ -29,6 +36,9 @@ fi
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do_reset
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echo 1 > events/enable
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yield
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count=`cat trace | grep -v ^# | wc -l`
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if [ $count -eq 0 ]; then
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fail "none of events are recorded"
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@ -37,6 +47,9 @@ fi
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do_reset
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echo 0 > events/enable
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yield
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count=`cat trace | grep -v ^# | wc -l`
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if [ $count -ne 0 ]; then
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fail "any of events should not be recorded"
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