1#!/bin/sh 2# perf stat tests 3# SPDX-License-Identifier: GPL-2.0 4 5set -e 6 7err=0 8test_default_stat() { 9 echo "Basic stat command test" 10 if ! perf stat true 2>&1 | egrep -q "Performance counter stats for 'true':" 11 then 12 echo "Basic stat command test [Failed]" 13 err=1 14 return 15 fi 16 echo "Basic stat command test [Success]" 17} 18 19test_stat_record_report() { 20 echo "stat record and report test" 21 if ! perf stat record -o - true | perf stat report -i - 2>&1 | \ 22 egrep -q "Performance counter stats for 'pipe':" 23 then 24 echo "stat record and report test [Failed]" 25 err=1 26 return 27 fi 28 echo "stat record and report test [Success]" 29} 30 31test_stat_repeat_weak_groups() { 32 echo "stat repeat weak groups test" 33 if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \ 34 true 2>&1 | grep -q 'seconds time elapsed' 35 then 36 echo "stat repeat weak groups test [Skipped event parsing failed]" 37 return 38 fi 39 if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \ 40 true > /dev/null 2>&1 41 then 42 echo "stat repeat weak groups test [Failed]" 43 err=1 44 return 45 fi 46 echo "stat repeat weak groups test [Success]" 47} 48 49test_topdown_groups() { 50 # Topdown events must be grouped with the slots event first. Test that 51 # parse-events reorders this. 52 echo "Topdown event group test" 53 if ! perf stat -e '{slots,topdown-retiring}' true > /dev/null 2>&1 54 then 55 echo "Topdown event group test [Skipped event parsing failed]" 56 return 57 fi 58 if perf stat -e '{slots,topdown-retiring}' true 2>&1 | egrep -q "<not supported>" 59 then 60 echo "Topdown event group test [Failed events not supported]" 61 err=1 62 return 63 fi 64 if perf stat -e '{topdown-retiring,slots}' true 2>&1 | egrep -q "<not supported>" 65 then 66 echo "Topdown event group test [Failed slots not reordered first]" 67 err=1 68 return 69 fi 70 echo "Topdown event group test [Success]" 71} 72 73test_topdown_weak_groups() { 74 # Weak groups break if the perf_event_open of multiple grouped events 75 # fails. Breaking a topdown group causes the events to fail. Test a very large 76 # grouping to see that the topdown events aren't broken out. 77 echo "Topdown weak groups test" 78 ok_grouping="{slots,topdown-bad-spec,topdown-be-bound,topdown-fe-bound,topdown-retiring},branch-instructions,branch-misses,bus-cycles,cache-misses,cache-references,cpu-cycles,instructions,mem-loads,mem-stores,ref-cycles,cache-misses,cache-references" 79 if ! perf stat --no-merge -e "$ok_grouping" true > /dev/null 2>&1 80 then 81 echo "Topdown weak groups test [Skipped event parsing failed]" 82 return 83 fi 84 group_needs_break="{slots,topdown-bad-spec,topdown-be-bound,topdown-fe-bound,topdown-retiring,branch-instructions,branch-misses,bus-cycles,cache-misses,cache-references,cpu-cycles,instructions,mem-loads,mem-stores,ref-cycles,cache-misses,cache-references}:W" 85 if perf stat --no-merge -e "$group_needs_break" true 2>&1 | egrep -q "<not supported>" 86 then 87 echo "Topdown weak groups test [Failed events not supported]" 88 err=1 89 return 90 fi 91 echo "Topdown weak groups test [Success]" 92} 93 94test_default_stat 95test_stat_record_report 96test_stat_repeat_weak_groups 97test_topdown_groups 98test_topdown_weak_groups 99exit $err 100