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 stalled-cycles-frontend stalled-cycles-backend cycles instructions branches branch-misses)
  14 event_metric=("CPUs utilized" "CPUs utilized" "/sec" "/sec" "/sec" "frontend cycles idle" "backend cycles idle" "GHz" "insn per cycle" "/sec" "of all branches")
  15 skip_metric=("stalled cycles per insn" "tma_")
  16
  17 cleanup() {
  18   rm -f "${stat_output}"
  19
  20   trap - EXIT TERM INT
  21 }
  22
  23 trap_cleanup() {
  24   cleanup
  25   exit 1
  26 }
  27 trap trap_cleanup EXIT TERM INT
  28
  29 function commachecker()
  30 {
  31         local -i cnt=0
  32         local prefix=1
  33
  34         case "$1"
  35         in "--interval")        prefix=2
  36         ;; "--per-thread")      prefix=2
  37         ;; "--system-wide-no-aggr")     prefix=2
  38         ;; "--per-core")        prefix=3
  39         ;; "--per-socket")      prefix=3
  40         ;; "--per-node")        prefix=3
  41         ;; "--per-die")         prefix=3
  42         ;; "--per-cache")       prefix=3
  43         esac
  44
  45         while read line
  46         do
  47                 # Ignore initial "started on" comment.
  48                 x=${line:0:1}
  49                 [ "$x" = "#" ] && continue
  50                 # Ignore initial blank line.
  51                 [ "$line" = "" ] && continue
  52                 # Ignore "Performance counter stats"
  53                 x=${line:0:25}
  54                 [ "$x" = "Performance counter stats" ] && continue
  55                 # Ignore "seconds time elapsed" and break
  56                 [[ "$line" == *"time elapsed"* ]] && break
  57
  58                 main_body=$(echo $line | cut -d' ' -f$prefix-)
  59                 x=${main_body%#*}
  60                 [ "$x" = "" ] && continue
  61
  62                 # Skip metrics without event name
  63                 y=${main_body#*#}
  64                 for i in "${!skip_metric[@]}"; do
  65                         [[ "$y" == *"${skip_metric[$i]}"* ]] && break
  66                 done
  67                 [[ "$y" == *"${skip_metric[$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