diff options
Diffstat (limited to 'tools/perf/tests/shell/stat+shadow_stat.sh')
-rwxr-xr-x | tools/perf/tests/shell/stat+shadow_stat.sh | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/stat+shadow_stat.sh b/tools/perf/tests/shell/stat+shadow_stat.sh new file mode 100755 index 0000000000..a1918a15e3 --- /dev/null +++ b/tools/perf/tests/shell/stat+shadow_stat.sh @@ -0,0 +1,81 @@ +#!/bin/sh +# perf stat metrics (shadow stat) test +# SPDX-License-Identifier: GPL-2.0 + +set -e + +# skip if system-wide mode is forbidden +perf stat -a true > /dev/null 2>&1 || exit 2 + +# skip if on hybrid platform +perf stat -a -e cycles sleep 1 2>&1 | grep -e cpu_core && exit 2 + +test_global_aggr() +{ + perf stat -a --no-big-num -e cycles,instructions sleep 1 2>&1 | \ + grep -e cycles -e instructions | \ + while read num evt _hash ipc rest + do + # skip not counted events + if [ "$num" = "<not" ]; then + continue + fi + + # save cycles count + if [ "$evt" = "cycles" ]; then + cyc=$num + continue + fi + + # skip if no cycles + if [ -z "$cyc" ]; then + continue + fi + + # use printf for rounding and a leading zero + res=`printf "%.2f" "$(echo "scale=6; $num / $cyc" | bc -q)"` + if [ "$ipc" != "$res" ]; then + echo "IPC is different: $res != $ipc ($num / $cyc)" + exit 1 + fi + done +} + +test_no_aggr() +{ + perf stat -a -A --no-big-num -e cycles,instructions sleep 1 2>&1 | \ + grep ^CPU | \ + while read cpu num evt _hash ipc rest + do + # skip not counted events + if [ "$num" = "<not" ]; then + continue + fi + + # save cycles count + if [ "$evt" = "cycles" ]; then + results="$results $cpu:$num" + continue + fi + + cyc=${results##* $cpu:} + cyc=${cyc%% *} + + # skip if no cycles + if [ -z "$cyc" ]; then + continue + fi + + # use printf for rounding and a leading zero + res=`printf "%.2f" "$(echo "scale=6; $num / $cyc" | bc -q)"` + if [ "$ipc" != "$res" ]; then + echo "IPC is different for $cpu: $res != $ipc ($num / $cyc)" + exit 1 + fi + done +} + +test_global_aggr +test_no_aggr + +exit 0 |