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BM/PMU: Support new SIMD sampling format #548

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BM/PMU: Support new SIMD sampling format #548

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34 changes: 21 additions & 13 deletions BM/pmu/apebs_tests.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -26,16 +26,10 @@ usage() {
__EOF
}

lbr_test() {
level=$1
perfdata="pebs.data"
logfile="temp.txt"
perf record -o "$perfdata" -b -e cycles:"$level" -a sleep 1 2> "$logfile"
sample_count=$(grep "sample" $logfile | awk '{print $10}' | tr -cd "0-9")
lbr_count=$(perf report -D -i $perfdata| grep -c "branch stack")
test_print_trc "sample_count = $sample_count; lbr_count = $lbr_count"
[[ $sample_count -eq 0 ]] && die "samples = 0!"
[[ $sample_count -eq $lbr_count ]] || die "samples does not match!"
clear_files() {
for i in "$@"; do
[[ -f $i ]] && test_print_trc "Remove file: $i" && rm "$i"
done;
}

lbr_test() {
Expand All @@ -54,11 +48,25 @@ xmm_test() {
level=$1
perfdata="pebs.data"
logfile="temp.txt"
perf record -o "$perfdata" -IXMM0 -e cycles:"$level" -a sleep 1 2> "$logfile"
simdfile="simd.txt"
local reg_type=0
perf record -I? 2>&1|tee $simdfile
grep 'XMM0-15' $simdfile > /dev/null && reg_type=0
grep 'XMM0 XMM1' $simdfile > /dev/null && reg_type=1
if [[ $reg_type -eq 0 ]]; then
xmm_reg="XMM"
mul=$((2 * 16))
elif [[ $reg_type -eq 1 ]]; then
xmm_reg="XMM0"
mul=2
fi

perf record -o $perfdata -I${xmm_reg} -e cycles:"$level" -a sleep 1 2>&1|tee $logfile
sample_count=$(grep "sample" $logfile | awk '{print $10}' | tr -cd "0-9")
count=$(perf report -D -i $perfdata| grep -c "XMM0")
count=$(perf report -D -i $perfdata| grep -c "${xmm_reg}")
clear_files $perfdata $logfile $simdfile
test_print_trc "before sample_count = $sample_count; count = $count"
sample_count=$((sample_count * 2))
sample_count=$((sample_count * mul))
test_print_trc "after sample_count = $sample_count; count = $count"
[[ $sample_count -eq 0 ]] && die "samples = 0!"
[[ $sample_count -eq $count ]] || die "samples does not match!"
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12 changes: 10 additions & 2 deletions BM/pmu/pmu_tests.sh
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Expand Up @@ -215,8 +215,16 @@ arch_pebs_gp_reg_group_test() {

arch_pebs_xer_group_test() {
level="p"
# reg_group_test_more_option "OPMASK0" "opmask0" 1
reg_group_test_more_option "YMMH0" "YMMH0" 2
simdfile="simd.txt"
do_cmd "perf record -I? 2>&1|tee $simdfile"
if grep 'YMM0-15' $simdfile > /dev/null; then
# All 16 YMM registers are recorded, so 4*16=64
reg_group_test_more_option "YMM" "YMM" 64
clear_files $simdfile
else
clear_files $simdfile
die "SIMD sampling format is incorrect!"
fi
# reg_group_test_more_option "ZMMH0" "ZMMLH0" 4
}

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