diff options
Diffstat (limited to 'tools/perf/tests/shell/stat+event_uniquifying.sh')
| -rwxr-xr-x | tools/perf/tests/shell/stat+event_uniquifying.sh | 109 |
1 files changed, 49 insertions, 60 deletions
diff --git a/tools/perf/tests/shell/stat+event_uniquifying.sh b/tools/perf/tests/shell/stat+event_uniquifying.sh index bf54bd6c3e2e..b5dec6b6da36 100755 --- a/tools/perf/tests/shell/stat+event_uniquifying.sh +++ b/tools/perf/tests/shell/stat+event_uniquifying.sh @@ -4,74 +4,63 @@ set -e -stat_output=$(mktemp /tmp/__perf_test.stat_output.XXXXX) -perf_tool=perf err=0 +stat_output=$(mktemp /tmp/__perf_test.stat_output.XXXXX) -test_event_uniquifying() { - # We use `clockticks` in `uncore_imc` to verify the uniquify behavior. - pmu="uncore_imc" - event="clockticks" - - # If the `-A` option is added, the event should be uniquified. - # - # $perf list -v clockticks - # - # List of pre-defined events (to be used in -e or -M): - # - # uncore_imc_0/clockticks/ [Kernel PMU event] - # uncore_imc_1/clockticks/ [Kernel PMU event] - # uncore_imc_2/clockticks/ [Kernel PMU event] - # uncore_imc_3/clockticks/ [Kernel PMU event] - # uncore_imc_4/clockticks/ [Kernel PMU event] - # uncore_imc_5/clockticks/ [Kernel PMU event] - # - # ... - # - # $perf stat -e clockticks -A -- true - # - # Performance counter stats for 'system wide': - # - # CPU0 3,773,018 uncore_imc_0/clockticks/ - # CPU0 3,609,025 uncore_imc_1/clockticks/ - # CPU0 0 uncore_imc_2/clockticks/ - # CPU0 3,230,009 uncore_imc_3/clockticks/ - # CPU0 3,049,897 uncore_imc_4/clockticks/ - # CPU0 0 uncore_imc_5/clockticks/ - # - # 0.002029828 seconds time elapsed - - echo "stat event uniquifying test" - uniquified_event_array=() +cleanup() { + rm -f "${stat_output}" - # Skip if the machine does not have `uncore_imc` device. - if ! ${perf_tool} list pmu | grep -q ${pmu}; then - echo "Target does not support PMU ${pmu} [Skipped]" - err=2 - return - fi + trap - EXIT TERM INT +} - # Check how many uniquified events. - while IFS= read -r line; do - uniquified_event=$(echo "$line" | awk '{print $1}') - uniquified_event_array+=("${uniquified_event}") - done < <(${perf_tool} list -v ${event} | grep ${pmu}) +trap_cleanup() { + echo "Unexpected signal in ${FUNCNAME[1]}" + cleanup + exit 1 +} +trap trap_cleanup EXIT TERM INT - perf_command="${perf_tool} stat -e $event -A -o ${stat_output} -- true" - $perf_command +test_event_uniquifying() { + echo "Uniquification of PMU sysfs events test" - # Check the output contains all uniquified events. - for uniquified_event in "${uniquified_event_array[@]}"; do - if ! cat "${stat_output}" | grep -q "${uniquified_event}"; then - echo "Event is not uniquified [Failed]" - echo "${perf_command}" - cat "${stat_output}" - err=1 - break - fi + # Read events from perf list with and without -v. With -v the duplicate PMUs + # aren't deduplicated. Note, json events are listed by perf list without a + # PMU. + read -ra pmu_events <<< "$(perf list --raw pmu)" + read -ra pmu_v_events <<< "$(perf list -v --raw pmu)" + # For all non-deduplicated events. + for pmu_v_event in "${pmu_v_events[@]}"; do + # If the event matches an event in the deduplicated events then it musn't + # be an event with duplicate PMUs, continue the outer loop. + for pmu_event in "${pmu_events[@]}"; do + if [[ "$pmu_v_event" == "$pmu_event" ]]; then + continue 2 + fi + done + # Strip the suffix from the non-deduplicated event's PMU. + event=$(echo "$pmu_v_event" | sed -E 's/_[0-9]+//') + for pmu_event in "${pmu_events[@]}"; do + if [[ "$event" == "$pmu_event" ]]; then + echo "Testing event ${event} is uniquified to ${pmu_v_event}" + if ! perf stat -e "$event" -A -o ${stat_output} -- true; then + echo "Error running perf stat for event '$event' [Skip]" + if [ $err = 0 ]; then + err=2 + fi + continue + fi + # Ensure the non-deduplicated event appears in the output. + if ! grep -q "${pmu_v_event}" "${stat_output}"; then + echo "Uniquification of PMU sysfs events test [Failed]" + cat "${stat_output}" + err=1 + fi + break + fi + done done } test_event_uniquifying -rm -f "${stat_output}" +cleanup exit $err |