From: Tom Zanussi <zanussi@kernel.org>
To: rostedt@goodmis.org
Cc: tglx@linutronix.de, mhiramat@kernel.org, namhyung@kernel.org,
vedang.patel@intel.com, bigeasy@linutronix.de,
joel@joelfernandes.org, mathieu.desnoyers@efficios.com,
julia@ni.com, linux-kernel@vger.kernel.org,
linux-rt-users@vger.kernel.org
Subject: [PATCH v6 10/15] tracing: Add hist trigger snapshot() action test case
Date: Thu, 11 Oct 2018 16:02:07 -0500 [thread overview]
Message-ID: <75db4ded21471580e5ad8d57c74fd9c8923cd90a.1539288364.git.tom.zanussi@linux.intel.com> (raw)
In-Reply-To: <cover.1539288364.git.tom.zanussi@linux.intel.com>
In-Reply-To: <cover.1539288364.git.tom.zanussi@linux.intel.com>
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Add a test case verifying the basic functionality of the
hist:snapshot() action.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
---
.../inter-event/trigger-snapshot-action-hist.tc | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)
create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc
new file mode 100644
index 000000000000..f427be989296
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc
@@ -0,0 +1,55 @@
+#!/bin/sh
+# description: event trigger - test inter-event histogram trigger snapshot action
+
+do_reset() {
+ reset_trigger
+ echo > set_event
+ echo 0 > snapshot
+ clear_trace
+}
+
+fail() { #msg
+ do_reset
+ echo $1
+ exit_fail
+}
+
+if [ ! -f set_event ]; then
+ echo "event tracing is not supported"
+ exit_unsupported
+fi
+
+if [ ! -f snapshot ]; then
+ echo "snapshot is not supported"
+ exit_unsupported
+fi
+
+grep "onchange(var)" README > /dev/null || exit_unsupported # version issue
+
+grep "snapshot()" README > /dev/null || exit_unsupported # version issue
+
+reset_tracer
+do_reset
+
+echo "Test snapshot action"
+
+echo 1 > /sys/kernel/debug/tracing/events/sched/enable
+
+echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger
+
+ping localhost -c 3
+nice -n 1 ping localhost -c 3
+
+echo 0 > /sys/kernel/debug/tracing/events/sched/enable
+
+if ! grep -q "changed:" events/sched/sched_waking/hist; then
+ fail "Failed to create onchange action inter-event histogram"
+fi
+
+if ! grep -q "comm=ping" snapshot; then
+ fail "Failed to create snapshot action inter-event histogram"
+fi
+
+do_reset
+
+exit 0
--
2.14.1
next prev parent reply other threads:[~2018-10-11 21:02 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-11 21:01 [PATCH v6 00/15] tracing: Hist trigger snapshot and onchange additions Tom Zanussi
2018-10-11 21:01 ` [PATCH v6 01/15] tracing: Refactor hist trigger action code Tom Zanussi
2018-10-23 5:09 ` Masami Hiramatsu
2018-10-23 21:18 ` Tom Zanussi
2018-10-11 21:01 ` [PATCH v6 02/15] tracing: Make hist trigger Documentation better reflect actions/handlers Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 03/15] tracing: Add hist trigger handler.action documentation to README Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 04/15] tracing: Split up onmatch action data Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 05/15] tracing: Generalize hist trigger onmax and save action Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 06/15] tracing: Add conditional snapshot Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 07/15] tracing: Move hist trigger key printing into a separate function Tom Zanussi
2018-10-23 14:37 ` Masami Hiramatsu
2018-10-23 21:24 ` Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 08/15] tracing: Add hist trigger snapshot() action Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 09/15] tracing: Add hist trigger snapshot() action Documentation Tom Zanussi
2018-10-11 21:02 ` Tom Zanussi [this message]
2018-10-23 15:03 ` [PATCH v6 10/15] tracing: Add hist trigger snapshot() action test case Masami Hiramatsu
2018-10-23 21:32 ` Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 11/15] tracing: Add hist trigger onchange() handler Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 12/15] tracing: Add hist trigger onchange() handler Documentation Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 13/15] tracing: Add hist trigger onchange() handler test case Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 14/15] tracing: Add alternative synthetic event trace action syntax Tom Zanussi
2018-10-11 21:02 ` [PATCH v6 15/15] tracing: Add alternative synthetic event trace action test case Tom Zanussi
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