| From: Rajvi Jingar <rajvi.jingar@intel.com> |
| Date: Mon, 15 Jan 2018 20:52:11 -0600 |
| Subject: [PATCH 48/48] selftests: ftrace: Add inter-event hist triggers |
| testcases |
| |
| This adds inter-event hist triggers testcases which covers following: |
| - create/remove synthetic event |
| - disable histogram for synthetic event |
| - extended error support |
| - field variable support |
| - histogram variables |
| - histogram trigger onmatch action |
| - histogram trigger onmax action |
| - histogram trigger onmatch-onmax action |
| - simple expression support |
| - combined histogram |
| |
| Here is the test result. |
| === Ftrace unit tests === |
| [1] event trigger - test extended error support [PASS] |
| [2] event trigger - test field variable support [PASS] |
| [3] event trigger - test inter-event combined histogram trigger [PASS] |
| [4] event trigger - test inter-event histogram trigger onmatch action [PASS] |
| [5] event trigger - test inter-event histogram trigger onmatch-onmax action [PASS] |
| [6] event trigger - test inter-event histogram trigger onmax action [PASS] |
| [7] event trigger - test synthetic event create remove [PASS] |
| |
| Link: http://lkml.kernel.org/r/e07ef1e72f7bf0f84dc87c9b736d6dc91b4b0b49.1516069914.git.tom.zanussi@linux.intel.com |
| |
| Signed-off-by: Rajvi Jingar <rajvi.jingar@intel.com> |
| Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com> |
| Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
| (cherry picked from commit fb08b656dc9caee4a097bc4d8e050e2ead59bc24) |
| Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| --- |
| tools/testing/selftests/ftrace/test.d/functions | 7 + |
| tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc | 39 ++++++ |
| tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-field-variable-support.tc | 54 +++++++++ |
| tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-inter-event-combined-hist.tc | 58 ++++++++++ |
| tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-action-hist.tc | 50 ++++++++ |
| tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-onmax-action-hist.tc | 50 ++++++++ |
| tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmax-action-hist.tc | 48 ++++++++ |
| tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-createremove.tc | 54 +++++++++ |
| 8 files changed, 360 insertions(+) |
| create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc |
| create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-field-variable-support.tc |
| create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-inter-event-combined-hist.tc |
| create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-action-hist.tc |
| create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-onmax-action-hist.tc |
| create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmax-action-hist.tc |
| create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-createremove.tc |
| |
| --- a/tools/testing/selftests/ftrace/test.d/functions |
| +++ b/tools/testing/selftests/ftrace/test.d/functions |
| @@ -55,6 +55,13 @@ disable_events() { |
| echo 0 > events/enable |
| } |
| |
| +clear_synthetic_events() { # reset all current synthetic events |
| + grep -v ^# synthetic_events | |
| + while read line; do |
| + echo "!$line" >> synthetic_events |
| + done |
| +} |
| + |
| initialize_ftrace() { # Reset ftrace to initial-state |
| # As the initial state, ftrace will be set to nop tracer, |
| # no events, no triggers, no filters, no function filters, |
| --- /dev/null |
| +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc |
| @@ -0,0 +1,39 @@ |
| +#!/bin/sh |
| +# description: event trigger - test extended error support |
| + |
| + |
| +do_reset() { |
| + reset_trigger |
| + echo > set_event |
| + clear_trace |
| +} |
| + |
| +fail() { #msg |
| + do_reset |
| + echo $1 |
| + exit_fail |
| +} |
| + |
| +if [ ! -f set_event ]; then |
| + echo "event tracing is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +if [ ! -f synthetic_events ]; then |
| + echo "synthetic event is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +reset_tracer |
| +do_reset |
| + |
| +echo "Test extended error support" |
| +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger |
| +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger &>/dev/null |
| +if ! grep -q "ERROR:" events/sched/sched_wakeup/hist; then |
| + fail "Failed to generate extended error in histogram" |
| +fi |
| + |
| +do_reset |
| + |
| +exit 0 |
| --- /dev/null |
| +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-field-variable-support.tc |
| @@ -0,0 +1,54 @@ |
| +#!/bin/sh |
| +# description: event trigger - test field variable support |
| + |
| +do_reset() { |
| + reset_trigger |
| + echo > set_event |
| + clear_trace |
| +} |
| + |
| +fail() { #msg |
| + do_reset |
| + echo $1 |
| + exit_fail |
| +} |
| + |
| +if [ ! -f set_event ]; then |
| + echo "event tracing is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +if [ ! -f synthetic_events ]; then |
| + echo "synthetic event is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +clear_synthetic_events |
| +reset_tracer |
| +do_reset |
| + |
| +echo "Test field variable support" |
| + |
| +echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events |
| +echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger |
| +echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger |
| +echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger |
| + |
| +ping localhost -c 3 |
| +if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then |
| + fail "Failed to create inter-event histogram" |
| +fi |
| + |
| +if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then |
| + fail "Failed to create histogram with field variable" |
| +fi |
| + |
| +echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger |
| + |
| +if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then |
| + fail "Failed to remove histogram with field variable" |
| +fi |
| + |
| +do_reset |
| + |
| +exit 0 |
| --- /dev/null |
| +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-inter-event-combined-hist.tc |
| @@ -0,0 +1,58 @@ |
| +#!/bin/sh |
| +# description: event trigger - test inter-event combined histogram trigger |
| + |
| +do_reset() { |
| + reset_trigger |
| + echo > set_event |
| + clear_trace |
| +} |
| + |
| +fail() { #msg |
| + do_reset |
| + echo $1 |
| + exit_fail |
| +} |
| + |
| +if [ ! -f set_event ]; then |
| + echo "event tracing is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +if [ ! -f synthetic_events ]; then |
| + echo "synthetic event is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +reset_tracer |
| +do_reset |
| +clear_synthetic_events |
| + |
| +echo "Test create synthetic event" |
| + |
| +echo 'waking_latency u64 lat pid_t pid' > synthetic_events |
| +if [ ! -d events/synthetic/waking_latency ]; then |
| + fail "Failed to create waking_latency synthetic event" |
| +fi |
| + |
| +echo "Test combined histogram" |
| + |
| +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger |
| +echo 'hist:keys=pid:waking_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).waking_latency($waking_lat,pid) if comm=="ping"' > events/sched/sched_wakeup/trigger |
| +echo 'hist:keys=pid,lat:sort=pid,lat' > events/synthetic/waking_latency/trigger |
| + |
| +echo 'wakeup_latency u64 lat pid_t pid' >> synthetic_events |
| +echo 'hist:keys=pid:ts1=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger |
| +echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts1:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid) if next_comm=="ping"' > events/sched/sched_switch/trigger |
| + |
| +echo 'waking+wakeup_latency u64 lat; pid_t pid' >> synthetic_events |
| +echo 'hist:keys=pid,lat:sort=pid,lat:ww_lat=$waking_lat+$wakeup_lat:onmatch(synthetic.wakeup_latency).waking+wakeup_latency($ww_lat,pid)' >> events/synthetic/wakeup_latency/trigger |
| +echo 'hist:keys=pid,lat:sort=pid,lat' >> events/synthetic/waking+wakeup_latency/trigger |
| + |
| +ping localhost -c 3 |
| +if ! grep -q "pid:" events/synthetic/waking+wakeup_latency/hist; then |
| + fail "Failed to create combined histogram" |
| +fi |
| + |
| +do_reset |
| + |
| +exit 0 |
| --- /dev/null |
| +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-action-hist.tc |
| @@ -0,0 +1,50 @@ |
| +#!/bin/sh |
| +# description: event trigger - test inter-event histogram trigger onmatch action |
| + |
| +do_reset() { |
| + reset_trigger |
| + echo > set_event |
| + clear_trace |
| +} |
| + |
| +fail() { #msg |
| + do_reset |
| + echo $1 |
| + exit_fail |
| +} |
| + |
| +if [ ! -f set_event ]; then |
| + echo "event tracing is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +if [ ! -f synthetic_events ]; then |
| + echo "synthetic event is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +clear_synthetic_events |
| +reset_tracer |
| +do_reset |
| + |
| +echo "Test create synthetic event" |
| + |
| +echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events |
| +if [ ! -d events/synthetic/wakeup_latency ]; then |
| + fail "Failed to create wakeup_latency synthetic event" |
| +fi |
| + |
| +echo "Test create histogram for synthetic event" |
| +echo "Test histogram variables,simple expression support and onmatch action" |
| + |
| +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger |
| +echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger |
| +echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger |
| +ping localhost -c 5 |
| +if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then |
| + fail "Failed to create onmatch action inter-event histogram" |
| +fi |
| + |
| +do_reset |
| + |
| +exit 0 |
| --- /dev/null |
| +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-onmax-action-hist.tc |
| @@ -0,0 +1,50 @@ |
| +#!/bin/sh |
| +# description: event trigger - test inter-event histogram trigger onmatch-onmax action |
| + |
| +do_reset() { |
| + reset_trigger |
| + echo > set_event |
| + clear_trace |
| +} |
| + |
| +fail() { #msg |
| + do_reset |
| + echo $1 |
| + exit_fail |
| +} |
| + |
| +if [ ! -f set_event ]; then |
| + echo "event tracing is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +if [ ! -f synthetic_events ]; then |
| + echo "synthetic event is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +clear_synthetic_events |
| +reset_tracer |
| +do_reset |
| + |
| +echo "Test create synthetic event" |
| + |
| +echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events |
| +if [ ! -d events/synthetic/wakeup_latency ]; then |
| + fail "Failed to create wakeup_latency synthetic event" |
| +fi |
| + |
| +echo "Test create histogram for synthetic event" |
| +echo "Test histogram variables,simple expression support and onmatch-onmax action" |
| + |
| +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger |
| +echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid,next_comm):onmax($wakeup_lat).save(next_comm,prev_pid,prev_prio,prev_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger |
| +echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger |
| +ping localhost -c 5 |
| +if [ ! grep -q "ping" events/synthetic/wakeup_latency/hist -o ! grep -q "max:" events/sched/sched_switch/hist]; then |
| + fail "Failed to create onmatch-onmax action inter-event histogram" |
| +fi |
| + |
| +do_reset |
| + |
| +exit 0 |
| --- /dev/null |
| +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmax-action-hist.tc |
| @@ -0,0 +1,48 @@ |
| +#!/bin/sh |
| +# description: event trigger - test inter-event histogram trigger onmax action |
| + |
| +do_reset() { |
| + reset_trigger |
| + echo > set_event |
| + clear_trace |
| +} |
| + |
| +fail() { #msg |
| + do_reset |
| + echo $1 |
| + exit_fail |
| +} |
| + |
| +if [ ! -f set_event ]; then |
| + echo "event tracing is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +if [ ! -f synthetic_events ]; then |
| + echo "synthetic event is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +clear_synthetic_events |
| +reset_tracer |
| +do_reset |
| + |
| +echo "Test create synthetic event" |
| + |
| +echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events |
| +if [ ! -d events/synthetic/wakeup_latency ]; then |
| + fail "Failed to create wakeup_latency synthetic event" |
| +fi |
| + |
| +echo "Test onmax action" |
| + |
| +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_waking/trigger |
| +echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmax($wakeup_lat).save(next_comm,prev_pid,prev_prio,prev_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger |
| +ping localhost -c 3 |
| +if ! grep -q "max:" events/sched/sched_switch/hist; then |
| + fail "Failed to create onmax action inter-event histogram" |
| +fi |
| + |
| +do_reset |
| + |
| +exit 0 |
| --- /dev/null |
| +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-createremove.tc |
| @@ -0,0 +1,54 @@ |
| +#!/bin/sh |
| +# description: event trigger - test synthetic event create remove |
| +do_reset() { |
| + reset_trigger |
| + echo > set_event |
| + clear_trace |
| +} |
| + |
| +fail() { #msg |
| + do_reset |
| + echo $1 |
| + exit_fail |
| +} |
| + |
| +if [ ! -f set_event ]; then |
| + echo "event tracing is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +if [ ! -f synthetic_events ]; then |
| + echo "synthetic event is not supported" |
| + exit_unsupported |
| +fi |
| + |
| +clear_synthetic_events |
| +reset_tracer |
| +do_reset |
| + |
| +echo "Test create synthetic event" |
| + |
| +echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events |
| +if [ ! -d events/synthetic/wakeup_latency ]; then |
| + fail "Failed to create wakeup_latency synthetic event" |
| +fi |
| + |
| +reset_trigger |
| + |
| +echo "Test create synthetic event with an error" |
| +echo 'wakeup_latency u64 lat pid_t pid char' > synthetic_events > /dev/null |
| +if [ -d events/synthetic/wakeup_latency ]; then |
| + fail "Created wakeup_latency synthetic event with an invalid format" |
| +fi |
| + |
| +reset_trigger |
| + |
| +echo "Test remove synthetic event" |
| +echo '!wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events |
| +if [ -d events/synthetic/wakeup_latency ]; then |
| + fail "Failed to delete wakeup_latency synthetic event" |
| +fi |
| + |
| +do_reset |
| + |
| +exit 0 |