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| author | Tom Zanussi <tom.zanussi@linux.intel.com> | 2019-02-13 17:42:52 -0600 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-02-20 13:51:07 -0500 |
| commit | 146459fe671e9633e0f28707720c314936e1a778 (patch) | |
| tree | b71ce0587854f0c8527828b4ce438417ae36cc41 /tools | |
| parent | 403726d8180cdd1b1bd7f638641e90dcc96c1bdb (diff) | |
| download | linux-stable-146459fe671e9633e0f28707720c314936e1a778.tar.gz linux-stable-146459fe671e9633e0f28707720c314936e1a778.tar.bz2 linux-stable-146459fe671e9633e0f28707720c314936e1a778.zip | |
tracing: Add hist trigger snapshot() action test case
Add a test case verifying the basic functionality of the
hist:snapshot() action.
Link: http://lkml.kernel.org/r/c0555f462cbfe56dadfec6e63e531e109bd72930.1550100284.git.tom.zanussi@linux.intel.com
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc new file mode 100644 index 000000000000..18fff69fc433 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc @@ -0,0 +1,43 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event trigger - test inter-event histogram trigger snapshot action + +fail() { #msg + echo $1 + exit_fail +} + +if [ ! -f set_event ]; then + echo "event tracing is not supported" + exit_unsupported +fi + +if [ ! -f snapshot ]; then + echo "snapshot is not supported" + exit_unsupported +fi + +grep -q "onchange(var)" README || exit_unsupported # version issue + +grep -q "snapshot()" README || exit_unsupported # version issue + +echo "Test snapshot action" + +echo 1 > /sys/kernel/debug/tracing/events/sched/enable + +echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger + +ping $LOCALHOST -c 3 +nice -n 1 ping $LOCALHOST -c 3 + +echo 0 > tracing_on + +if ! grep -q "changed:" events/sched/sched_waking/hist; then + fail "Failed to create onchange action inter-event histogram" +fi + +if ! grep -q "comm=ping" snapshot; then + fail "Failed to create snapshot action inter-event histogram" +fi + +exit 0 |