23 lines
848 B
Bash
23 lines
848 B
Bash
|
#!/bin/bash
|
||
|
|
# test Intel TPEBS counting mode (exclusive)
|
||
|
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
|
||
|
|
set -e
|
||
|
|
grep -q GenuineIntel /proc/cpuinfo || { echo Skipping non-Intel; exit 2; }
|
||
|
|
|
||
|
|
# Use this event for testing because it should exist in all platforms
|
||
|
|
event=cache-misses:R
|
||
|
|
|
||
|
|
# Hybrid platforms output like "cpu_atom/cache-misses/R", rather than as above
|
||
|
|
alt_name=/cache-misses/R
|
||
|
|
|
||
|
|
# Without this cmd option, default value or zero is returned
|
||
|
|
#echo "Testing without --record-tpebs"
|
||
|
|
#result=$(perf stat -e "$event" true 2>&1)
|
||
|
|
#[[ "$result" =~ $event || "$result" =~ $alt_name ]] || exit 1
|
||
|
|
|
||
|
|
# In platforms that do not support TPEBS, it should execute without error.
|
||
|
|
echo "Testing with --record-tpebs"
|
||
|
|
result=$(perf stat -e "$event" --record-tpebs -a sleep 0.01 2>&1)
|
||
|
|
[[ "$result" =~ "perf record" && "$result" =~ $event || "$result" =~ $alt_name ]] || exit 1
|