1 #!/bin/bash
2 # test Intel TPEBS counting mode
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 # Without this cmd option, default value or zero is returned
12 echo "Testing without --record-tpebs"
13 result=$(perf stat -e "$event" true 2>&1)
14 [[ "$result" =~ $event ]] || exit 1
15
16 # In platforms that do not support TPEBS, it should execute without error.
17 echo "Testing with --record-tpebs"
18 result=$(perf stat -e "$event" --record-tpebs -a sleep 0.01 2>&1)
19 [[ "$result" =~ "perf record" && "$result" =~ $event ]] || exit 1
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.