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From: Masami Hiramatsu <mhiramat@kernel.org>
To: Shuah Khan <shuah@kernel.org>, Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 21/28] selftests/ftrace: Add function profiling stat testcase
Date: Thu, 30 Aug 2018 23:22:21 +0900	[thread overview]
Message-ID: <153563894147.29700.6575031484306159534.stgit@devbox> (raw)
In-Reply-To: <153563834333.29700.11242968505215651399.stgit@devbox>

Add a testcase for function profiling per-cpu statistics
interface. There is already func_profile.tc, but that is
mainly focusing on the combination of function-profiler
and function tracer. This testcase ensures trace_stat
per-cpu function statistics is correctly updated.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 Changes in v3:
 - Remove the last empty line.
---
 .../ftrace/test.d/ftrace/func_profile_stat.tc      |   22 ++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 tools/testing/selftests/ftrace/test.d/ftrace/func_profile_stat.tc

diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profile_stat.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profile_stat.tc
new file mode 100644
index 000000000000..0d501058aa75
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profile_stat.tc
@@ -0,0 +1,22 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function profiling
+
+[ ! -f function_profile_enabled ] && exit_unsupported
+
+: "Enable function profile"
+echo 1 > function_profile_enabled
+
+: "Profile must be updated"
+cp trace_stat/function0 $TMPDIR/
+( echo "forked"; sleep 1 )
+: "diff returns 0 if there is no difference"
+! diff trace_stat/function0 $TMPDIR/function0
+
+echo 0 > function_profile_enabled
+
+: "Profile must NOT be updated"
+cp trace_stat/function0 $TMPDIR/
+( echo "forked"; sleep 1 )
+: "diff returns 0 if there is no difference"
+diff trace_stat/function0 $TMPDIR/function0


  parent reply	other threads:[~2018-08-30 14:22 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-30 14:12 [PATCH v3 00/28] selftests/ftrace: Improve ftracetest with coverage check Masami Hiramatsu
2018-08-30 14:12 ` [PATCH v3 01/28] selftests/ftrace: Add --stop-fail hidden option for debug Masami Hiramatsu
2018-08-30 14:13 ` [PATCH v3 02/28] selftests/ftrace: Add --console hidden option Masami Hiramatsu
2018-08-30 14:13 ` [PATCH v3 03/28] selftests/ftrace: Add case number prefix to logfile Masami Hiramatsu
2018-08-30 14:14 ` [PATCH v3 04/28] selftests/ftrace: More initialize features in initialize_ftrace Masami Hiramatsu
2018-08-30 14:14 ` [PATCH v3 05/28] selftests/ftrace: Add SPDX License Identifier to template Masami Hiramatsu
2018-08-30 14:15 ` [PATCH v3 06/28] selftests/ftrace: Cleanup ftrace after running test Masami Hiramatsu
2018-08-30 14:15 ` [PATCH v3 07/28] selftests/ftrace: Remove unneeded per-test init/cleanup ftrace Masami Hiramatsu
2018-08-30 14:16 ` [PATCH v3 08/28] selftests/ftrace: Fix to test kprobe $comm arg only if available Masami Hiramatsu
2018-08-30 14:16 ` [PATCH v3 09/28] selftests/ftrace: Fix checkbashisms errors Masami Hiramatsu
2018-08-30 14:17 ` [PATCH v3 10/28] selftests/ftrace: Use loopback address instead of localhost Masami Hiramatsu
2018-08-30 14:17 ` [PATCH v3 11/28] selftests/ftrace: Improve kprobe on module testcase to load/unload module Masami Hiramatsu
2018-08-30 14:18 ` [PATCH v3 12/28] selftests/ftrace: Improve kprobe testcase to check log data Masami Hiramatsu
2018-08-30 14:18 ` [PATCH v3 13/28] selftests/ftrace: Improve kretprobe " Masami Hiramatsu
2018-08-30 14:19 ` [PATCH v3 14/28] selftests/ftrace: Test kprobe-event argument with various bitsize Masami Hiramatsu
2018-08-30 14:19 ` [PATCH v3 15/28] selftests/ftrace: Check set_event_pid result Masami Hiramatsu
2018-08-30 14:19 ` [PATCH v3 16/28] selftests/ftrace: Add kprobe event with $comm argument testcase Masami Hiramatsu
2018-08-30 14:20 ` [PATCH v3 17/28] selftests/ftrace: Add kprobe profile testcase Masami Hiramatsu
2018-08-30 14:20 ` [PATCH v3 18/28] selftests/ftrace: Add kprobe-event with symbol argument test Masami Hiramatsu
2018-08-30 14:21 ` [PATCH v3 19/28] selftests/ftrace: Add trace_printk sample module test Masami Hiramatsu
2018-08-30 14:21 ` [PATCH v3 20/28] selftests/ftrace: Add ringbuffer size changing testcase Masami Hiramatsu
2018-08-30 14:22 ` Masami Hiramatsu [this message]
2018-08-30 14:22 ` [PATCH v3 22/28] selftests/ftrace: Add max stack tracer testcase Masami Hiramatsu
2018-08-30 14:23 ` [PATCH v3 23/28] selftests/ftrace: Add function filter on module testcase Masami Hiramatsu
2018-08-30 14:23 ` [PATCH v3 24/28] selftests/ftrace: Add trace_pipe testcase Masami Hiramatsu
2018-08-30 14:24 ` [PATCH v3 25/28] selftests/ftrace: Add stacktrace ftrace filter command testcase Masami Hiramatsu
2018-08-30 14:24 ` [PATCH v3 26/28] selftests/ftrace: Add wakeup tracer testcase Masami Hiramatsu
2018-08-30 14:25 ` [PATCH v3 27/28] selftests/ftrace: Add wakeup_rt " Masami Hiramatsu
2018-08-30 14:25 ` [PATCH v3 28/28] selftests/ftrace: Add ftrace cpumask testcase Masami Hiramatsu
2018-09-12  9:57 ` [PATCH v3 00/28] selftests/ftrace: Improve ftracetest with coverage check Masami Hiramatsu
2018-09-21 21:24 ` Shuah Khan
2018-09-27 22:49   ` Masami Hiramatsu

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