diff options
| author | Tom Zanussi <tom.zanussi@linux.intel.com> | 2019-02-13 17:42:54 -0600 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-02-20 13:51:07 -0500 |
| commit | 9c749a1f6e0f1037077a2b1f4f04d817f0b33cf1 (patch) | |
| tree | 468a95725f447f034dd9a54d9c147bd2186fa55c /tools/testing | |
| parent | 6f6eaa1ebac6905f28dd8a4eb88458a4f2145f9d (diff) | |
tracing: Add alternative synthetic event trace action test case
Add a test case for the alternative trace(<synthetic_event, params)
synthetic event generation syntax.
Link: http://lkml.kernel.org/r/0616d18423ab1dfdbf333bce9c92ac4fa0779207.1550100284.git.tom.zanussi@linux.intel.com
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc new file mode 100644 index 000000000000..8021d60aafec --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc @@ -0,0 +1,42 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event trigger - test inter-event histogram trigger trace action + +fail() { #msg + echo $1 + exit_fail +} + +if [ ! -f set_event ]; then + echo "event tracing is not supported" + exit_unsupported +fi + +if [ ! -f synthetic_events ]; then + echo "synthetic event is not supported" + exit_unsupported +fi + +grep -q "trace(<synthetic_event>" README || exit_unsupported # version issue + +echo "Test create synthetic event" + +echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events +if [ ! -d events/synthetic/wakeup_latency ]; then + fail "Failed to create wakeup_latency synthetic event" +fi + +echo "Test create histogram for synthetic event using trace action" +echo "Test histogram variables,simple expression support and trace action" + +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger +echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).trace(wakeup_latency,$wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger +echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger + +ping $LOCALHOST -c 5 + +if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then + fail "Failed to create trace action inter-event histogram" +fi + +exit 0 |