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 # shellcheck source=lib/stat_output.sh
  10 . "$(dirname $0)"/lib/stat_output.sh
  11
  12 stat_output=$(mktemp /tmp/__perf_test.stat_output.std.XXXXX)
  13
  14 event_name=(cpu-clock task-clock context-switches cpu-migrations page-faults stalled-cycles-frontend stalled-cycles-backend cycles instructions branches branch-misses)
  15 event_metric=("CPUs utilized" "CPUs utilized" "/sec" "/sec" "/sec" "frontend cycles idle" "backend cycles idle" "GHz" "insn per cycle" "/sec" "of all branches")
  16 skip_metric=("stalled cycles per insn" "tma_" "retiring" "frontend_bound" "bad_speculation" "backend_bound")
  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 prefix=1
  33
  34         case "$1"
  35         in "--interval")        prefix=2
  36         ;; "--per-thread")      prefix=2
  37         ;; "--system-wide-no-aggr")     prefix=2
  38         ;; "--per-core")        prefix=3
  39         ;; "--per-socket")      prefix=3
  40         ;; "--per-node")        prefix=3
  41         ;; "--per-die")         prefix=3
  42         ;; "--per-cache")       prefix=3
  43         ;; "--per-cluster")     prefix=3
  44         esac
  45
  46         while read line
  47         do
  48                 # Ignore initial "started on" comment.
  49                 x=${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=${main_body%#*}
  61                 [ "$x" = "" ] && continue
  62
  63                 # Skip metrics without event name
  64                 y=${main_body#*#}
  65                 for i in "${!skip_metric[@]}"; do
  66                         [[ "$y" == *"${skip_metric[$i]}"* ]] && break
  67                 done
  68                 [[ "$y" == *"${skip_metric[$i]}"* ]] && continue
  69
  70                 # Check default event
  71                 for i in "${!event_name[@]}"; do
  72                         [[ "$x" == *"${event_name[$i]}"* ]] && break
  73                 done
  74
  75                 [[ ! "$x" == *"${event_name[$i]}"* ]] && {
  76                         echo "Unknown event name in $line" 1>&2
  77                         exit 1;
  78                 }
  79
  80                 # Check event metric if it exists
  81                 [[ ! "$main_body" == *"#"* ]] && continue
  82                 [[ ! "$main_body" == *"${event_metric[$i]}"* ]] && {
  83                         echo "wrong event metric. expected ${event_metric[$i]} in $line" 1>&2
  84                         exit 1;
  85                 }
  86         done < "${stat_output}"
  87         return 0
  88 }
  89
  90 perf_cmd="-o ${stat_output}"
  91
  92 skip_test=$(check_for_topology)
  93 check_no_args "STD" "$perf_cmd"
  94 check_system_wide "STD" "$perf_cmd"
  95 check_interval "STD" "$perf_cmd"
  96 check_per_thread "STD" "$perf_cmd"
  97 check_per_node "STD" "$perf_cmd"
  98 if [ $skip_test -ne 1 ]
  99 then
 100         check_system_wide_no_aggr "STD" "$perf_cmd"
 101         check_per_core "STD" "$perf_cmd"
 102         check_per_cache_instance "STD" "$perf_cmd"
 103         check_per_cluster "STD" "$perf_cmd"
 104         check_per_die "STD" "$perf_cmd"
 105         check_per_socket "STD" "$perf_cmd"
 106 else
 107         echo "[Skip] Skipping tests for system_wide_no_aggr, per_core, per_die and per_socket since socket id exposed via topology is invalid"
 108 fi
 109 cleanup
 110 exit 0