diff options
| author | Masami Hiramatsu <mhiramat@kernel.org> | 2018-08-30 23:24:42 +0900 |
|---|---|---|
| committer | Shuah Khan (Samsung OSG) <shuah@kernel.org> | 2018-10-24 14:49:36 -0600 |
| commit | c1edd060b41383bb6fa76008aacf4b0b3b1c46e7 (patch) | |
| tree | c67bde2f319830c0c26f523943b5ee990d652a22 /tools | |
| parent | 91ae08a265142d9378f7d972e00de29d5c91a2de (diff) | |
| download | linux-c1edd060b41383bb6fa76008aacf4b0b3b1c46e7.tar.bz2 | |
selftests/ftrace: Add wakeup tracer testcase
Add a testcase for wakeup tracer.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/ftrace/config | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc | 25 |
2 files changed, 26 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/config b/tools/testing/selftests/ftrace/config index b7ac74fcb0fa..c2c8de4fafff 100644 --- a/tools/testing/selftests/ftrace/config +++ b/tools/testing/selftests/ftrace/config @@ -4,6 +4,7 @@ CONFIG_FUNCTION_PROFILER=y CONFIG_TRACER_SNAPSHOT=y CONFIG_STACK_TRACER=y CONFIG_HIST_TRIGGERS=y +CONFIG_SCHED_TRACER=y CONFIG_PREEMPT_TRACER=y CONFIG_IRQSOFF_TRACER=y CONFIG_PREEMPTIRQ_DELAY_TEST=m diff --git a/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc b/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc new file mode 100644 index 000000000000..e3005fa785f0 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc @@ -0,0 +1,25 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL2.0 +# description: Test wakeup tracer + +if ! which chrt ; then + echo "chrt is not found. This test requires nice command." + exit_unresolved +fi + +if ! grep -wq "wakeup" available_tracers ; then + echo "wakeup tracer is not supported" + exit_unsupported +fi + +echo wakeup > current_tracer +echo 1 > tracing_on +echo 0 > tracing_max_latency + +: "Wakeup higher priority task" +chrt -f 5 sleep 1 + +echo 0 > tracing_on +grep '+ \[[[:digit:]]*\]' trace +grep '==> \[[[:digit:]]*\]' trace + |