diff options
Diffstat (limited to 'tools/perf/tests/shell/record.sh')
| -rwxr-xr-x | tools/perf/tests/shell/record.sh | 75 |
1 files changed, 73 insertions, 2 deletions
diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh index 048078ee2eca..0fc7a909ae9b 100755 --- a/tools/perf/tests/shell/record.sh +++ b/tools/perf/tests/shell/record.sh @@ -1,5 +1,5 @@ #!/bin/bash -# perf record tests +# perf record tests (exclusive) # SPDX-License-Identifier: GPL-2.0 set -e @@ -17,6 +17,7 @@ skip_test_missing_symbol ${testsym} err=0 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX) +script_output=$(mktemp /tmp/__perf_test.perf.data.XXXXX.script) testprog="perf test -w thloop" cpu_pmu_dir="/sys/bus/event_source/devices/cpu*" br_cntr_file="/caps/branch_counter_nr" @@ -93,7 +94,7 @@ test_per_thread() { test_register_capture() { echo "Register capture test" - if ! perf list | grep -q 'br_inst_retired.near_call' + if ! perf list pmu | grep -q 'br_inst_retired.near_call' then echo "Register capture test [Skipped missing event]" return @@ -228,6 +229,73 @@ test_cgroup() { echo "Cgroup sampling test [Success]" } +test_leader_sampling() { + echo "Basic leader sampling test" + if ! perf record -o "${perfdata}" -e "{instructions,instructions}:Su" -- \ + perf test -w brstack 2> /dev/null + then + echo "Leader sampling [Failed record]" + err=1 + return + fi + index=0 + perf script -i "${perfdata}" > $script_output + while IFS= read -r line + do + # Check if the two instruction counts are equal in each record + instructions=$(echo $line | awk '{for(i=1;i<=NF;i++) if($i=="instructions:") print $(i-1)}') + if [ $(($index%2)) -ne 0 ] && [ ${instructions}x != ${prev_instructions}x ] + then + echo "Leader sampling [Failed inconsistent instructions count]" + err=1 + return + fi + index=$(($index+1)) + prev_instructions=$instructions + done < $script_output + echo "Basic leader sampling test [Success]" +} + +test_topdown_leader_sampling() { + echo "Topdown leader sampling test" + if ! perf stat -e "{slots,topdown-retiring}" true 2> /dev/null + then + echo "Topdown leader sampling [Skipped event parsing failed]" + return + fi + if ! perf record -o "${perfdata}" -e "{instructions,slots,topdown-retiring}:S" true 2> /dev/null + then + echo "Topdown leader sampling [Failed topdown events not reordered correctly]" + err=1 + return + fi + echo "Topdown leader sampling test [Success]" +} + +test_precise_max() { + echo "precise_max attribute test" + if ! perf stat -e "cycles,instructions" true 2> /dev/null + then + echo "precise_max attribute [Skipped no hardware events]" + return + fi + # Just to make sure it doesn't fail + if ! perf record -o "${perfdata}" -e "cycles:P" true 2> /dev/null + then + echo "precise_max attribute [Failed cycles:P event]" + err=1 + return + fi + # On AMD, cycles and instructions events are treated differently + if ! perf record -o "${perfdata}" -e "instructions:P" true 2> /dev/null + then + echo "precise_max attribute [Failed instructions:P event]" + err=1 + return + fi + echo "precise_max attribute test [Success]" +} + # raise the limit of file descriptors to minimum if [[ $default_fd_limit -lt $min_fd_limit ]]; then ulimit -Sn $min_fd_limit @@ -239,6 +307,9 @@ test_system_wide test_workload test_branch_counter test_cgroup +test_leader_sampling +test_topdown_leader_sampling +test_precise_max # restore the default value ulimit -Sn $default_fd_limit |