tools/perf/tests/shell/test_stat_intel_tpebs.sh

   1 #!/bin/bash
   2 # test Intel TPEBS counting mode (exclusive)
   3 # SPDX-License-Identifier: GPL-2.0
   4
   5 set -e
   6 grep -q GenuineIntel /proc/cpuinfo || { echo Skipping non-Intel; exit 2; }
   7
   8 # Use this event for testing because it should exist in all platforms
   9 event=cache-misses:R
  10
  11 # Hybrid platforms output like "cpu_atom/cache-misses/R", rather than as above
  12 alt_name=/cache-misses/R
  13
  14 # Without this cmd option, default value or zero is returned
  15 #echo "Testing without --record-tpebs"
  16 #result=$(perf stat -e "$event" true 2>&1)
  17 #[[ "$result" =~ $event || "$result" =~ $alt_name ]] || exit 1
  18
  19 # In platforms that do not support TPEBS, it should execute without error.
  20 echo "Testing with --record-tpebs"
  21 result=$(perf stat -e "$event" --record-tpebs -a sleep 0.01 2>&1)
  22 [[ "$result" =~ "perf record" && "$result" =~ $event || "$result" =~ $alt_name ]] || exit 1