tools/perf/tests/shell/stat+std_output.sh

   1 #!/bin/bash
   2 # perf stat STD output linter
   3 # SPDX-License-Identifier: GPL-2.0
   4 # Tests various perf stat STD output commands for
   5 # default event and metricgroup
   6
   7 set -e
   8
   9 . $(dirname $0)/lib/stat_output.sh
  10
  11 stat_output=$(mktemp /tmp/__perf_test.stat_output.std.XXXXX)
  12
  13 event_name=(cpu-clock task-clock context-switches cpu-migrations page-faults cycles instructions branches branch-misses stalled-cycles-frontend stalled-cycles-backend)
  14 event_metric=("CPUs utilized" "CPUs utilized" "/sec" "/sec" "/sec" "GHz" "insn per cycle" "/sec" "of all branches" "frontend cycles idle" "backend cycles idle")
  15
  16 metricgroup_name=(TopdownL1 TopdownL2)
  17
  18 cleanup() {
  19   rm -f "${stat_output}"
  20
  21   trap - EXIT TERM INT
  22 }
  23
  24 trap_cleanup() {
  25   cleanup
  26   exit 1
  27 }
  28 trap trap_cleanup EXIT TERM INT
  29
  30 function commachecker()
  31 {
  32         local -i cnt=0
  33         local prefix=1
  34
  35         case "$1"
  36         in "--interval")        prefix=2
  37         ;; "--per-thread")      prefix=2
  38         ;; "--system-wide-no-aggr")     prefix=2
  39         ;; "--per-core")        prefix=3
  40         ;; "--per-socket")      prefix=3
  41         ;; "--per-node")        prefix=3
  42         ;; "--per-die")         prefix=3
  43         ;; "--per-cache")       prefix=3
  44         esac
  45
  46         while read line
  47         do
  48                 # Ignore initial "started on" comment.
  49                 x=${line:0:1}
  50                 [ "$x" = "#" ] && continue
  51                 # Ignore initial blank line.
  52                 [ "$line" = "" ] && continue
  53                 # Ignore "Performance counter stats"
  54                 x=${line:0:25}
  55                 [ "$x" = "Performance counter stats" ] && continue
  56                 # Ignore "seconds time elapsed" and break
  57                 [[ "$line" == *"time elapsed"* ]] && break
  58
  59                 main_body=$(echo $line | cut -d' ' -f$prefix-)
  60                 x=${main_body%#*}
  61                 # Check default metricgroup
  62                 y=$(echo $x | tr -d ' ')
  63                 [ "$y" = "" ] && continue
  64                 for i in "${!metricgroup_name[@]}"; do
  65                         [[ "$y" == *"${metricgroup_name[$i]}"* ]] && break
  66                 done
  67                 [[ "$y" == *"${metricgroup_name[$i]}"* ]] && continue
  68
  69                 # Check default event
  70                 for i in "${!event_name[@]}"; do
  71                         [[ "$x" == *"${event_name[$i]}"* ]] && break
  72                 done
  73
  74                 [[ ! "$x" == *"${event_name[$i]}"* ]] && {
  75                         echo "Unknown event name in $line" 1>&2
  76                         exit 1;
  77                 }
  78
  79                 # Check event metric if it exists
  80                 [[ ! "$main_body" == *"#"* ]] && continue
  81                 [[ ! "$main_body" == *"${event_metric[$i]}"* ]] && {
  82                         echo "wrong event metric. expected ${event_metric[$i]} in $line" 1>&2
  83                         exit 1;
  84                 }
  85         done < "${stat_output}"
  86         return 0
  87 }
  88
  89 perf_cmd="-o ${stat_output}"
  90
  91 skip_test=$(check_for_topology)
  92 check_no_args "STD" "$perf_cmd"
  93 check_system_wide "STD" "$perf_cmd"
  94 check_interval "STD" "$perf_cmd"
  95 check_per_thread "STD" "$perf_cmd"
  96 check_per_node "STD" "$perf_cmd"
  97 if [ $skip_test -ne 1 ]
  98 then
  99         check_system_wide_no_aggr "STD" "$perf_cmd"
 100         check_per_core "STD" "$perf_cmd"
 101         check_per_cache_instance "STD" "$perf_cmd"
 102         check_per_die "STD" "$perf_cmd"
 103         check_per_socket "STD" "$perf_cmd"
 104 else
 105         echo "[Skip] Skipping tests for system_wide_no_aggr, per_core, per_die and per_socket since socket id exposed via topology is invalid"
 106 fi
 107 cleanup
 108 exit 0