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Date: Thu, 06 Nov 2014 13:40:49 +0900
From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Steven Rostedt <rostedt@...dmis.org>,
LKML <linux-kernel@...r.kernel.org>,
Namhyung Kim <namhyung.kim@....com>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 3/3] ftracetest: Add basic event tracing test cases
(2014/11/06 11:04), Namhyung Kim wrote:
> This patch adds basic event tracing tests like enable/disable with
> top-level, subsystem-level and individual event files.
>
> # ./ftracetest
> === Ftrace unit tests ===
> [1] Basic trace file check [PASS]
> [2] Basic trace clock test [PASS]
> [3] Basic event tracing check [PASS]
> [4] Basic test for tracers [PASS]
> [5] event tracing - enable/disable with top level files [PASS]
> [6] event tracing - enable/disable with subsystem level files [PASS]
> [7] event tracing - enable/disable with event level files [PASS]
> [8] ftrace - function graph filters [PASS]
> [9] ftrace - function profiler with function tracing [PASS]
> [10] ftrace - function graph filters with stack tracer [PASS]
> [11] Kretprobe dynamic event with arguments [PASS]
> [12] Kprobe dynamic event - busy event check [PASS]
> [13] Kprobe dynamic event with arguments [PASS]
> [14] Kprobe dynamic event - adding and removing [PASS]
>
> # of passed: 14
> # of failed: 0
> # of unresolved: 0
> # of untested: 0
> # of unsupported: 0
> # of xfailed: 0
> # of undefined(test bug): 0
Nice :)
>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Thank you,
> ---
> .../selftests/ftrace/test.d/00basic/basic4.tc | 5 ++
> .../selftests/ftrace/test.d/event/event-enable.tc | 53 ++++++++++++++++++++++
> .../ftrace/test.d/event/subsystem-enable.tc | 53 ++++++++++++++++++++++
> .../ftrace/test.d/event/toplevel-enable.tc | 47 +++++++++++++++++++
> 4 files changed, 158 insertions(+)
> create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
> create mode 100644 tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> create mode 100644 tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> create mode 100644 tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
>
> diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
> new file mode 100644
> index 000000000000..fd9c49a13612
> --- /dev/null
> +++ b/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
> @@ -0,0 +1,5 @@
> +#!/bin/sh
> +# description: Basic event tracing check
> +test -f available_events -a -f set_event -a -d events
> +# check scheduler events are available
> +grep -q sched available_events && exit 0 || exit -1
> \ No newline at end of file
> diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> new file mode 100644
> index 000000000000..668616d9bb03
> --- /dev/null
> +++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> @@ -0,0 +1,53 @@
> +#!/bin/sh
> +# description: event tracing - enable/disable with event level files
> +
> +do_reset() {
> + echo > set_event
> + clear_trace
> +}
> +
> +fail() { #msg
> + do_reset
> + echo $1
> + exit -1
> +}
> +
> +if [ ! -f set_event -o ! -d events/sched ]; then
> + echo "event tracing is not supported"
> + exit_unsupported
> +fi
> +
> +reset_tracer
> +do_reset
> +
> +echo 'sched:sched_switch' > set_event
> +usleep 1
> +
> +count=`cat trace | grep sched_switch | wc -l`
> +if [ $count -eq 0 ]; then
> + fail "sched_switch events are not recorded"
> +fi
> +
> +do_reset
> +
> +echo 1 > events/sched/sched_switch/enable
> +usleep 1
> +
> +count=`cat trace | grep sched_switch | wc -l`
> +if [ $count -eq 0 ]; then
> + fail "sched_switch events are not recorded"
> +fi
> +
> +do_reset
> +
> +echo 0 > events/sched/sched_switch/enable
> +usleep 1
> +
> +count=`cat trace | grep sched_switch | wc -l`
> +if [ $count -ne 0 ]; then
> + fail "sched_switch events should not be recorded"
> +fi
> +
> +do_reset
> +
> +exit 0
> diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> new file mode 100644
> index 000000000000..655c415b6e7f
> --- /dev/null
> +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> @@ -0,0 +1,53 @@
> +#!/bin/sh
> +# description: event tracing - enable/disable with subsystem level files
> +
> +do_reset() {
> + echo > set_event
> + clear_trace
> +}
> +
> +fail() { #msg
> + do_reset
> + echo $1
> + exit -1
> +}
> +
> +if [ ! -f set_event -o ! -d events/sched ]; then
> + echo "event tracing is not supported"
> + exit_unsupported
> +fi
> +
> +reset_tracer
> +do_reset
> +
> +echo 'sched:*' > set_event
> +usleep 1
> +
> +count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> +if [ $count -lt 3 ]; then
> + fail "at least fork, exec and exit events should be recorded"
> +fi
> +
> +do_reset
> +
> +echo 1 > events/sched/enable
> +usleep 1
> +
> +count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> +if [ $count -lt 3 ]; then
> + fail "at least fork, exec and exit events should be recorded"
> +fi
> +
> +do_reset
> +
> +echo 0 > events/sched/enable
> +usleep 1
> +
> +count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> +if [ $count -ne 0 ]; then
> + fail "any of scheduler events should not be recorded"
> +fi
> +
> +do_reset
> +
> +exit 0
> diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> new file mode 100644
> index 000000000000..480845774007
> --- /dev/null
> +++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> @@ -0,0 +1,47 @@
> +#!/bin/sh
> +# description: event tracing - enable/disable with top level files
> +
> +do_reset() {
> + echo > set_event
> + clear_trace
> +}
> +
> +fail() { #msg
> + do_reset
> + echo $1
> + exit -1
> +}
> +
> +if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then
> + echo "event tracing is not supported"
> + exit_unsupported
> +fi
> +
> +reset_tracer
> +do_reset
> +
> +echo '*:*' > set_event
> +count=`cat trace | grep -v ^# | wc -l`
> +if [ $count -eq 0 ]; then
> + fail "none of events are recorded"
> +fi
> +
> +do_reset
> +
> +echo 1 > events/enable
> +count=`cat trace | grep -v ^# | wc -l`
> +if [ $count -eq 0 ]; then
> + fail "none of events are recorded"
> +fi
> +
> +do_reset
> +
> +echo 0 > events/enable
> +count=`cat trace | grep -v ^# | wc -l`
> +if [ $count -ne 0 ]; then
> + fail "any of events should not be recorded"
> +fi
> +
> +do_reset
> +
> +exit 0
>
--
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Research Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@...achi.com
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