f06eec4d0f
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>
55 lines
1.6 KiB
Bash
55 lines
1.6 KiB
Bash
#!/bin/sh
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# description: event trigger - test field variable support
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do_reset() {
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reset_trigger
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echo > set_event
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clear_trace
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}
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fail() { #msg
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do_reset
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echo $1
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exit_fail
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}
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if [ ! -f set_event ]; then
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echo "event tracing is not supported"
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exit_unsupported
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fi
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if [ ! -f synthetic_events ]; then
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echo "synthetic event is not supported"
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exit_unsupported
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fi
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clear_synthetic_events
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reset_tracer
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do_reset
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echo "Test field variable support"
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echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events
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echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
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echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger
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echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger
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ping localhost -c 3
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if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
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fail "Failed to create inter-event histogram"
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fi
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if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
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fail "Failed to create histogram with field variable"
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fi
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echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$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
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if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
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fail "Failed to remove histogram with field variable"
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fi
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do_reset
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exit 0
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