1#!/bin/sh 2# perf record tests 3# SPDX-License-Identifier: GPL-2.0 4 5set -e 6 7shelldir=$(dirname "$0") 8. "${shelldir}"/lib/waiting.sh 9 10err=0 11perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX) 12testprog="perf test -w thloop" 13testsym="test_loop" 14 15cleanup() { 16 rm -rf "${perfdata}" 17 rm -rf "${perfdata}".old 18 19 trap - EXIT TERM INT 20} 21 22trap_cleanup() { 23 cleanup 24 exit 1 25} 26trap trap_cleanup EXIT TERM INT 27 28test_per_thread() { 29 echo "Basic --per-thread mode test" 30 if ! perf record -o /dev/null --quiet ${testprog} 2> /dev/null 31 then 32 echo "Per-thread record [Skipped event not supported]" 33 return 34 fi 35 if ! perf record --per-thread -o "${perfdata}" ${testprog} 2> /dev/null 36 then 37 echo "Per-thread record [Failed record]" 38 err=1 39 return 40 fi 41 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}" 42 then 43 echo "Per-thread record [Failed missing output]" 44 err=1 45 return 46 fi 47 48 # run the test program in background (for 30 seconds) 49 ${testprog} 30 & 50 TESTPID=$! 51 52 rm -f "${perfdata}" 53 54 wait_for_threads ${TESTPID} 2 55 perf record -p "${TESTPID}" --per-thread -o "${perfdata}" sleep 1 2> /dev/null 56 kill ${TESTPID} 57 58 if [ ! -e "${perfdata}" ] 59 then 60 echo "Per-thread record [Failed record -p]" 61 err=1 62 return 63 fi 64 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}" 65 then 66 echo "Per-thread record [Failed -p missing output]" 67 err=1 68 return 69 fi 70 71 echo "Basic --per-thread mode test [Success]" 72} 73 74test_register_capture() { 75 echo "Register capture test" 76 if ! perf list | grep -q 'br_inst_retired.near_call' 77 then 78 echo "Register capture test [Skipped missing event]" 79 return 80 fi 81 if ! perf record --intr-regs=\? 2>&1 | grep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15' 82 then 83 echo "Register capture test [Skipped missing registers]" 84 return 85 fi 86 if ! perf record -o - --intr-regs=di,r8,dx,cx -e br_inst_retired.near_call \ 87 -c 1000 --per-thread ${testprog} 2> /dev/null \ 88 | perf script -F ip,sym,iregs -i - 2> /dev/null \ 89 | grep -q "DI:" 90 then 91 echo "Register capture test [Failed missing output]" 92 err=1 93 return 94 fi 95 echo "Register capture test [Success]" 96} 97 98test_system_wide() { 99 echo "Basic --system-wide mode test" 100 if ! perf record -aB --synth=no -o "${perfdata}" ${testprog} 2> /dev/null 101 then 102 echo "System-wide record [Skipped not supported]" 103 return 104 fi 105 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}" 106 then 107 echo "System-wide record [Failed missing output]" 108 err=1 109 return 110 fi 111 if ! perf record -aB --synth=no -e cpu-clock,cs --threads=cpu \ 112 -o "${perfdata}" ${testprog} 2> /dev/null 113 then 114 echo "System-wide record [Failed record --threads option]" 115 err=1 116 return 117 fi 118 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}" 119 then 120 echo "System-wide record [Failed --threads missing output]" 121 err=1 122 return 123 fi 124 echo "Basic --system-wide mode test [Success]" 125} 126 127test_workload() { 128 echo "Basic target workload test" 129 if ! perf record -o "${perfdata}" ${testprog} 2> /dev/null 130 then 131 echo "Workload record [Failed record]" 132 err=1 133 return 134 fi 135 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}" 136 then 137 echo "Workload record [Failed missing output]" 138 err=1 139 return 140 fi 141 if ! perf record -e cpu-clock,cs --threads=package \ 142 -o "${perfdata}" ${testprog} 2> /dev/null 143 then 144 echo "Workload record [Failed record --threads option]" 145 err=1 146 return 147 fi 148 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}" 149 then 150 echo "Workload record [Failed --threads missing output]" 151 err=1 152 return 153 fi 154 echo "Basic target workload test [Success]" 155} 156 157test_per_thread 158test_register_capture 159test_system_wide 160test_workload 161 162cleanup 163exit $err 164