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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 v8 14/22] tracing: Add alternative synthetic event trace action test case
Date: Mon, 10 Dec 2018 18:01:28 -0600	[thread overview]
Message-ID: <b5f5635b2d7bcce33f0504a9fc3c156a36146b7e.1544483273.git.tom.zanussi@linux.intel.com> (raw)
In-Reply-To: <cover.1544483272.git.tom.zanussi@linux.intel.com>
In-Reply-To: <cover.1544483272.git.tom.zanussi@linux.intel.com>

From: Tom Zanussi <tom.zanussi@linux.intel.com>

Add a test case for the alternative trace(<synthetic_event, params)
synthetic event generation syntax.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
---
 .../inter-event/trigger-trace-action-hist.tc       | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc

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
-- 
2.14.1


  parent reply	other threads:[~2018-12-11  0:02 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-11  0:01 [PATCH v8 00/22] tracing: Hist trigger snapshot and onchange additions Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 01/22] tracing: Refactor hist trigger action code Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 02/22] tracing: Make hist trigger Documentation better reflect actions/handlers Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 03/22] tracing: Add hist trigger handler.action documentation to README Tom Zanussi
2018-12-14 13:11   ` Masami Hiramatsu
2018-12-14 17:16     ` Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 04/22] tracing: Split up onmatch action data Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 05/22] tracing: Generalize hist trigger onmax and save action Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 06/22] tracing: Add conditional snapshot Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 07/22] tracing: Add hist trigger snapshot() action Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 08/22] tracing: Add hist trigger snapshot() action Documentation Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 09/22] tracing: Add hist trigger snapshot() action test case Tom Zanussi
2018-12-14 16:14   ` Masami Hiramatsu
2018-12-11  0:01 ` [PATCH v8 10/22] tracing: Add hist trigger onchange() handler Tom Zanussi
2018-12-14 16:09   ` Masami Hiramatsu
2018-12-11  0:01 ` [PATCH v8 11/22] tracing: Add hist trigger onchange() handler Documentation Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 12/22] tracing: Add hist trigger onchange() handler test case Tom Zanussi
2018-12-14 16:18   ` Masami Hiramatsu
2018-12-14 17:17     ` Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 13/22] tracing: Add alternative synthetic event trace action syntax Tom Zanussi
2018-12-11  0:01 ` Tom Zanussi [this message]
2018-12-11  0:01 ` [PATCH v8 15/22] tracing: Add hist trigger action 'expected fail' test case Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 16/22] tracing: Add SPDX license GPL-2.0 license identifier to inter-event testcases Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 17/22] tracing: Remove unnecessary hist trigger struct fields Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 18/22] tracing: Use var_refs[] for hist trigger reference checking Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 19/22] tracing: Remove open-coding of hist trigger var_ref management Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 20/22] tracing: Use hist trigger's var_ref array to destroy var_refs Tom Zanussi
2018-12-14 16:31   ` Masami Hiramatsu
2018-12-14 17:29     ` Tom Zanussi
2018-12-15  6:50       ` Namhyung Kim
2018-12-15 21:01         ` Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 21/22] tracing: Remove hist trigger synth_var_refs Tom Zanussi
2018-12-11  0:01 ` [PATCH v8 22/22] tracing: Add hist trigger comments for variable-related fields Tom Zanussi

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