From: mhiramat at kernel.org (Masami Hiramatsu) Subject: [PATCH 3/3] selftests/ftrace: Add snapshot and tracing_on test case Date: Sat, 14 Jul 2018 01:28:44 +0900 [thread overview] Message-ID: <153149932412.11274.15289227592627901488.stgit@devbox> (raw) In-Reply-To: <153149923649.11274.14970833360963898112.stgit@devbox> Add a testcase for checking snapshot and tracing_on relationship. This ensures that the snapshotting doesn't affect current tracing on/off settings. Signed-off-by: Masami Hiramatsu <mhiramat at kernel.org> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Ingo Molnar <mingo at redhat.com> Cc: Shuah Khan <shuah at kernel.org> Cc: linux-kselftest at vger.kernel.org --- .../selftests/ftrace/test.d/00basic/snapshot.tc | 28 ++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc diff --git a/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc new file mode 100644 index 000000000000..3b1f45e13a2e --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc @@ -0,0 +1,28 @@ +#!/bin/sh +# description: Snapshot and tracing setting +# flags: instance + +[ ! -f snapshot ] && exit_unsupported + +echo "Set tracing off" +echo 0 > tracing_on + +echo "Allocate and take a snapshot" +echo 1 > snapshot + +# Since trace buffer is empty, snapshot is also empty, but allocated +grep -q "Snapshot is allocated" snapshot + +echo "Ensure keep tracing off" +test `cat tracing_on` -eq 0 + +echo "Set tracing on" +echo 1 > tracing_on + +echo "Take a snapshot again" +echo 1 > snapshot + +echo "Ensure keep tracing on" +test `cat tracing_on` -eq 1 + +exit 0 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
WARNING: multiple messages have this Message-ID (diff)
From: mhiramat@kernel.org (Masami Hiramatsu) Subject: [PATCH 3/3] selftests/ftrace: Add snapshot and tracing_on test case Date: Sat, 14 Jul 2018 01:28:44 +0900 [thread overview] Message-ID: <153149932412.11274.15289227592627901488.stgit@devbox> (raw) Message-ID: <20180713162844.T9yAKJsPOhEWHGFvd0Xs3nd_9FsNFsdvy1uVCt0ZTQ8@z> (raw) In-Reply-To: <153149923649.11274.14970833360963898112.stgit@devbox> Add a testcase for checking snapshot and tracing_on relationship. This ensures that the snapshotting doesn't affect current tracing on/off settings. Signed-off-by: Masami Hiramatsu <mhiramat at kernel.org> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Ingo Molnar <mingo at redhat.com> Cc: Shuah Khan <shuah at kernel.org> Cc: linux-kselftest at vger.kernel.org --- .../selftests/ftrace/test.d/00basic/snapshot.tc | 28 ++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc diff --git a/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc new file mode 100644 index 000000000000..3b1f45e13a2e --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc @@ -0,0 +1,28 @@ +#!/bin/sh +# description: Snapshot and tracing setting +# flags: instance + +[ ! -f snapshot ] && exit_unsupported + +echo "Set tracing off" +echo 0 > tracing_on + +echo "Allocate and take a snapshot" +echo 1 > snapshot + +# Since trace buffer is empty, snapshot is also empty, but allocated +grep -q "Snapshot is allocated" snapshot + +echo "Ensure keep tracing off" +test `cat tracing_on` -eq 0 + +echo "Set tracing on" +echo 1 > tracing_on + +echo "Take a snapshot again" +echo 1 > snapshot + +echo "Ensure keep tracing on" +test `cat tracing_on` -eq 1 + +exit 0 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
next parent reply other threads:[~2018-07-13 16:28 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <153149923649.11274.14970833360963898112.stgit@devbox> 2018-07-13 16:28 ` mhiramat [this message] 2018-07-13 16:28 ` [PATCH 3/3] selftests/ftrace: Add snapshot and tracing_on test case Masami Hiramatsu
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