tests/shell/stat.sh

0001 #!/bin/sh
0002 # perf stat tests
0003 # SPDX-License-Identifier: GPL-2.0
0004
0005 set -e
0006
0007 err=0
0008 test_default_stat() {
0009   echo "Basic stat command test"
0010   if ! perf stat true 2>&1 | egrep -q "Performance counter stats for 'true':"
0011   then
0012     echo "Basic stat command test [Failed]"
0013     err=1
0014     return
0015   fi
0016   echo "Basic stat command test [Success]"
0017 }
0018
0019 test_stat_record_report() {
0020   echo "stat record and report test"
0021   if ! perf stat record -o - true | perf stat report -i - 2>&1 | \
0022     egrep -q "Performance counter stats for 'pipe':"
0023   then
0024     echo "stat record and report test [Failed]"
0025     err=1
0026     return
0027   fi
0028   echo "stat record and report test [Success]"
0029 }
0030
0031 test_stat_repeat_weak_groups() {
0032   echo "stat repeat weak groups test"
0033   if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \
0034      true 2>&1 | grep -q 'seconds time elapsed'
0035   then
0036     echo "stat repeat weak groups test [Skipped event parsing failed]"
0037     return
0038   fi
0039   if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \
0040     true > /dev/null 2>&1
0041   then
0042     echo "stat repeat weak groups test [Failed]"
0043     err=1
0044     return
0045   fi
0046   echo "stat repeat weak groups test [Success]"
0047 }
0048
0049 test_topdown_groups() {
0050   # Topdown events must be grouped with the slots event first. Test that
0051   # parse-events reorders this.
0052   echo "Topdown event group test"
0053   if ! perf stat -e '{slots,topdown-retiring}' true > /dev/null 2>&1
0054   then
0055     echo "Topdown event group test [Skipped event parsing failed]"
0056     return
0057   fi
0058   if perf stat -e '{slots,topdown-retiring}' true 2>&1 | egrep -q "<not supported>"
0059   then
0060     echo "Topdown event group test [Failed events not supported]"
0061     err=1
0062     return
0063   fi
0064   if perf stat -e '{topdown-retiring,slots}' true 2>&1 | egrep -q "<not supported>"
0065   then
0066     echo "Topdown event group test [Failed slots not reordered first]"
0067     err=1
0068     return
0069   fi
0070   echo "Topdown event group test [Success]"
0071 }
0072
0073 test_topdown_weak_groups() {
0074   # Weak groups break if the perf_event_open of multiple grouped events
0075   # fails. Breaking a topdown group causes the events to fail. Test a very large
0076   # grouping to see that the topdown events aren't broken out.
0077   echo "Topdown weak groups test"
0078   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"
0079   if ! perf stat --no-merge -e "$ok_grouping" true > /dev/null 2>&1
0080   then
0081     echo "Topdown weak groups test [Skipped event parsing failed]"
0082     return
0083   fi
0084   group_needs_break="{slots,topdown-bad-spec,topdown-be-bound,topdown-fe-bound,topdown-retiring,branch-instructions,branch-misses,bus-cycles,cache-misses,cache-references,cpu-cycles,instructions,mem-loads,mem-stores,ref-cycles,cache-misses,cache-references}:W"
0085   if perf stat --no-merge -e "$group_needs_break" true 2>&1 | egrep -q "<not supported>"
0086   then
0087     echo "Topdown weak groups test [Failed events not supported]"
0088     err=1
0089     return
0090   fi
0091   echo "Topdown weak groups test [Success]"
0092 }
0093
0094 test_default_stat
0095 test_stat_record_report
0096 test_stat_repeat_weak_groups
0097 test_topdown_groups
0098 test_topdown_weak_groups
0099 exit $err