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| author |   Tom Zanussi <tom.zanussi@linux.intel.com> | 2019-02-13 17:42:53 -0600 |
|---|---|---|
| committer |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-02-20 13:51:07 -0500 |
| commit | 6f6eaa1ebac6905f28dd8a4eb88458a4f2145f9d (patch) | |
| tree | 667b19235943f2451009a9ff7dfdc5e634a28f30 /tools/testing/selftests/ftrace/test.d | |
| parent | tracing: Add hist trigger snapshot() action test case (diff) | |
| download | wireguard-linux-6f6eaa1ebac6905f28dd8a4eb88458a4f2145f9d.tar.xz wireguard-linux-6f6eaa1ebac6905f28dd8a4eb88458a4f2145f9d.zip | |
tracing: Add hist trigger onchange() handler test case
Add a test case verifying the basic functionality of the
hist:onchange($var) handler.
Link: http://lkml.kernel.org/r/bec87aa8ed7d81794510b3d465096a750c71fce7.1550100284.git.tom.zanussi@linux.intel.com
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc new file mode 100644 index 000000000000..064a284e4e75 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc @@ -0,0 +1,28 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event trigger - test inter-event histogram trigger onchange action + +fail() { #msg + echo $1 + exit_fail +} + +if [ ! -f set_event ]; then + echo "event tracing is not supported" + exit_unsupported +fi + +grep -q "onchange(var)" README || exit_unsupported # version issue + +echo "Test onchange action" + +echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger + +ping $LOCALHOST -c 3 +nice -n 1 ping $LOCALHOST -c 3 + +if ! grep -q "changed:" events/sched/sched_waking/hist; then + fail "Failed to create onchange action inter-event histogram" +fi + +exit 0 |