stat+shadow_stat.sh (1587B)
1#!/bin/sh 2# perf stat metrics (shadow stat) test 3# SPDX-License-Identifier: GPL-2.0 4 5set -e 6 7# skip if system-wide mode is forbidden 8perf stat -a true > /dev/null 2>&1 || exit 2 9 10# skip if on hybrid platform 11perf stat -a -e cycles sleep 1 2>&1 | grep -e cpu_core && exit 2 12 13test_global_aggr() 14{ 15 perf stat -a --no-big-num -e cycles,instructions sleep 1 2>&1 | \ 16 grep -e cycles -e instructions | \ 17 while read num evt hash ipc rest 18 do 19 # skip not counted events 20 if [ "$num" = "<not" ]; then 21 continue 22 fi 23 24 # save cycles count 25 if [ "$evt" = "cycles" ]; then 26 cyc=$num 27 continue 28 fi 29 30 # skip if no cycles 31 if [ -z "$cyc" ]; then 32 continue 33 fi 34 35 # use printf for rounding and a leading zero 36 res=`printf "%.2f" $(echo "scale=6; $num / $cyc" | bc -q)` 37 if [ "$ipc" != "$res" ]; then 38 echo "IPC is different: $res != $ipc ($num / $cyc)" 39 exit 1 40 fi 41 done 42} 43 44test_no_aggr() 45{ 46 perf stat -a -A --no-big-num -e cycles,instructions sleep 1 2>&1 | \ 47 grep ^CPU | \ 48 while read cpu num evt hash ipc rest 49 do 50 # skip not counted events 51 if [ "$num" = "<not" ]; then 52 continue 53 fi 54 55 # save cycles count 56 if [ "$evt" = "cycles" ]; then 57 results="$results $cpu:$num" 58 continue 59 fi 60 61 cyc=${results##* $cpu:} 62 cyc=${cyc%% *} 63 64 # skip if no cycles 65 if [ -z "$cyc" ]; then 66 continue 67 fi 68 69 # use printf for rounding and a leading zero 70 res=`printf "%.2f" $(echo "scale=6; $num / $cyc" | bc -q)` 71 if [ "$ipc" != "$res" ]; then 72 echo "IPC is different for $cpu: $res != $ipc ($num / $cyc)" 73 exit 1 74 fi 75 done 76} 77 78test_global_aggr 79test_no_aggr 80 81exit 0