diff options
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/00basic')
3 files changed, 66 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_size.tc b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_size.tc new file mode 100644 index 000000000000..ab70f0077c35 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_size.tc @@ -0,0 +1,22 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Change the ringbuffer size +# flags: instance + +rb_size_test() { +ORIG=`cat buffer_size_kb` + +expr $ORIG / 2 > buffer_size_kb + +expr $ORIG \* 2 > buffer_size_kb + +echo $ORIG > buffer_size_kb +} + +rb_size_test + +: "If per-cpu buffer is supported, imbalance it" +if [ -d per_cpu/cpu0 ]; then + cd per_cpu/cpu0 + rb_size_test +fi 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 diff --git a/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc b/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc new file mode 100644 index 000000000000..5058fbcfd90f --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc @@ -0,0 +1,16 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: trace_pipe and trace_marker +# flags: instance + +[ ! -f trace_marker ] && exit_unsupported + +echo "test input 1" > trace_marker + +: "trace interface never consume the ring buffer" +grep -q "test input 1" trace +grep -q "test input 1" trace + +: "trace interface never consume the ring buffer" +head -n 1 trace_pipe | grep -q "test input 1" +! grep -q "test input 1" trace |
