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

   1 #!/bin/bash
   2 # perf stat CSV output linter
   3 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
   4 # Tests various perf stat CSV output commands for the
   5 # correct number of fields and the CSV separator set to ','.
   6
   7 set -e
   8
   9 # shellcheck source=lib/stat_output.sh
  10 . "$(dirname $0)"/lib/stat_output.sh
  11
  12 csv_sep=@
  13
  14 stat_output=$(mktemp /tmp/__perf_test.stat_output.csv.XXXXX)
  15
  16 cleanup() {
  17   rm -f "${stat_output}"
  18
  19   trap - EXIT TERM INT
  20 }
  21
  22 trap_cleanup() {
  23   cleanup
  24   exit 1
  25 }
  26 trap trap_cleanup EXIT TERM INT
  27
  28 function commachecker()
  29 {
  30         local -i cnt=0
  31         local exp=0
  32
  33         case "$1"
  34         in "--no-args")         exp=6
  35         ;; "--system-wide")     exp=6
  36         ;; "--event")           exp=6
  37         ;; "--interval")        exp=7
  38         ;; "--per-thread")      exp=7
  39         ;; "--system-wide-no-aggr")     exp=7
  40                                 [ "$(uname -m)" = "s390x" ] && exp='^[6-7]$'
  41         ;; "--per-core")        exp=8
  42         ;; "--per-socket")      exp=8
  43         ;; "--per-node")        exp=8
  44         ;; "--per-die")         exp=8
  45         ;; "--per-cache")       exp=8
  46         esac
  47
  48         while read line
  49         do
  50                 # Ignore initial "started on" comment.
  51                 x=${line:0:1}
  52                 [ "$x" = "#" ] && continue
  53                 # Ignore initial blank line.
  54                 [ "$line" = "" ] && continue
  55
  56                 # Count the number of commas
  57                 x=$(echo $line | tr -d -c $csv_sep)
  58                 cnt="${#x}"
  59                 # echo $line $cnt
  60                 [[ ! "$cnt" =~ $exp ]] && {
  61                         echo "wrong number of fields. expected $exp in $line" 1>&2
  62                         exit 1;
  63                 }
  64         done < "${stat_output}"
  65         return 0
  66 }
  67
  68 perf_cmd="-x$csv_sep -o ${stat_output}"
  69
  70 skip_test=$(check_for_topology)
  71 check_no_args "CSV" "$perf_cmd"
  72 check_system_wide "CSV" "$perf_cmd"
  73 check_interval "CSV" "$perf_cmd"
  74 check_event "CSV" "$perf_cmd"
  75 check_per_thread "CSV" "$perf_cmd"
  76 check_per_node "CSV" "$perf_cmd"
  77 if [ $skip_test -ne 1 ]
  78 then
  79         check_system_wide_no_aggr "CSV" "$perf_cmd"
  80         check_per_core "CSV" "$perf_cmd"
  81         check_per_cache_instance "CSV" "$perf_cmd"
  82         check_per_die "CSV" "$perf_cmd"
  83         check_per_socket "CSV" "$perf_cmd"
  84 else
  85         echo "[Skip] Skipping tests for system_wide_no_aggr, per_core, per_die and per_socket since socket id exposed via topology is invalid"
  86 fi
  87 cleanup
  88 exit 0