diff options
Diffstat (limited to 'tools/perf/tests/shell/test_arm_spe.sh')
| -rwxr-xr-x | tools/perf/tests/shell/test_arm_spe.sh | 72 |
1 files changed, 63 insertions, 9 deletions
diff --git a/tools/perf/tests/shell/test_arm_spe.sh b/tools/perf/tests/shell/test_arm_spe.sh index e59044edc406..bb76ea88aa14 100755 --- a/tools/perf/tests/shell/test_arm_spe.sh +++ b/tools/perf/tests/shell/test_arm_spe.sh @@ -1,5 +1,5 @@ -#!/bin/sh -# Check Arm SPE trace data recording and synthesized samples +#!/bin/bash +# Check Arm SPE trace data recording and synthesized samples (exclusive) # Uses the 'perf record' to record trace data of Arm SPE events; # then verify if any SPE event samples are generated by SPE with @@ -9,7 +9,7 @@ # German Gomez <german.gomez@arm.com>, 2021 skip_if_no_arm_spe_event() { - perf list | egrep -q 'arm_spe_[0-9]+//' && return 0 + perf list pmu | grep -E -q 'arm_spe_[0-9]+//' && return 0 # arm_spe event doesn't exist return 2 @@ -23,17 +23,20 @@ glb_err=0 cleanup_files() { rm -f ${perfdata} + rm -f ${perfdata}.old exit $glb_err } -trap cleanup_files exit term int +trap cleanup_files EXIT TERM INT arm_spe_report() { - if [ $2 != 0 ]; then + if [ $2 = 0 ]; then + echo "$1: PASS" + elif [ $2 = 2 ]; then + echo "$1: SKIPPED" + else echo "$1: FAIL" glb_err=$2 - else - echo "$1: PASS" fi } @@ -48,7 +51,7 @@ perf_script_samples() { # dd 3048 [002] 1 tlb-access: ffffaa64999c __GI___libc_write+0x3c (/lib/aarch64-linux-gnu/libc-2.27.so) # dd 3048 [002] 1 memory: ffffaa64999c __GI___libc_write+0x3c (/lib/aarch64-linux-gnu/libc-2.27.so) perf script -F,-time -i ${perfdata} 2>&1 | \ - egrep " +$1 +[0-9]+ .* +${events}:(.*:)? +" > /dev/null 2>&1 + grep -E " +$1 +[0-9]+ .* +${events}:(.*:)? +" > /dev/null 2>&1 } perf_report_samples() { @@ -59,7 +62,7 @@ perf_report_samples() { # 7.71% 7.71% dd libc-2.27.so [.] getenv # 2.59% 2.59% dd ld-2.27.so [.] strcmp perf report --stdio -i ${perfdata} 2>&1 | \ - egrep " +[0-9]+\.[0-9]+% +[0-9]+\.[0-9]+% +$1 " > /dev/null 2>&1 + grep -E " +[0-9]+\.[0-9]+% +[0-9]+\.[0-9]+% +$1 " > /dev/null 2>&1 } arm_spe_snapshot_test() { @@ -85,5 +88,56 @@ arm_spe_snapshot_test() { arm_spe_report "SPE snapshot testing" $err } +arm_spe_system_wide_test() { + echo "Recording trace with system-wide mode $perfdata" + + perf record -o - -e dummy -a -B true > /dev/null 2>&1 + if [ $? != 0 ]; then + arm_spe_report "SPE system-wide testing" 2 + return + fi + + perf record -o ${perfdata} -e arm_spe// -a --no-bpf-event \ + -- dd if=/dev/zero of=/dev/null count=100000 > /dev/null 2>&1 + + perf_script_samples dd && + perf_report_samples dd + + err=$? + arm_spe_report "SPE system-wide testing" $err +} + +arm_spe_discard_test() { + echo "SPE discard mode" + + for f in /sys/bus/event_source/devices/arm_spe_*; do + if [ -e "$f/format/discard" ]; then + cpu=$(cut -c -1 "$f/cpumask") + break + fi + done + + if [ -z $cpu ]; then + arm_spe_report "SPE discard mode not present" 2 + return + fi + + # Test can use wildcard SPE instance and Perf will only open the event + # on instances that have that format flag. But make sure the target + # runs on an instance with discard mode otherwise we're not testing + # anything. + perf record -o ${perfdata} -e arm_spe/discard/ -N -B --no-bpf-event \ + -- taskset --cpu-list $cpu true + + if perf report -i ${perfdata} --stats | grep 'AUX events\|AUXTRACE events'; then + arm_spe_report "SPE discard mode found unexpected data" 1 + else + arm_spe_report "SPE discard mode" 0 + fi +} + arm_spe_snapshot_test +arm_spe_system_wide_test +arm_spe_discard_test + exit $glb_err |