Estimate performance measurement inaccuracy in tools/perf.sh and tools/run-perf-test.sh
JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
committed by
László Langó
László Langó
parent
0219f37dcc
commit
91a0514fab
+191
-16
@@ -1,6 +1,6 @@
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#!/bin/bash
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# Copyright 2014-2015 Samsung Electronics Co., Ltd.
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# Copyright 2014-2016 Samsung Electronics Co., Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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@@ -26,9 +26,9 @@ function exit_err() {
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exit 1
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}
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USAGE="Usage:\n sudo run.sh OLD_ENGINE NEW_ENGINE REPEATS TIMEOUT BENCH_FOLDER"
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USAGE="Usage:\n sudo run.sh OLD_ENGINE NEW_ENGINE REPEATS TIMEOUT BENCH_FOLDER OUTPUT_FORMAT"
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if [ "$#" -ne 5 ]
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if [ "$#" -ne 6 ]
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then
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echo -e "${USAGE}"
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exit_err "Argument number mismatch..."
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@@ -39,6 +39,15 @@ ENGINE_NEW="$2"
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REPEATS="$3"
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TIMEOUT="$4"
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BENCH_FOLDER="$5"
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OUTPUT_FORMAT="$6"
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if [ "${OUTPUT_FORMAT}" != "-m" ]
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then
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if [ "${OUTPUT_FORMAT}" != "-c" ]
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then
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exit_err "Please, use -m or -c as output format specifier"
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fi
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fi
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if [ "${REPEATS}" -lt 1 ]
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then
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@@ -54,13 +63,27 @@ perf_n=0
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mem_n=0
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perf_rel_mult=1.0
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perf_rel_inaccuracy_tmp=0
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mem_rel_mult=1.0
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mem_rel_inaccuracy_tmp="-1"
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# Unicode "figure space" character
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FIGURE_SPACE=$(echo -e -n "\xE2\x80\x87")
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# Unicode "approximately equal" character
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APPROXIMATELY_EQUAL=$(echo -n -e "\xE2\x89\x88")
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function run-compare()
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{
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COMMAND=$1
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PRE=$2
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TEST=$3
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PRECISION=$4
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UNIT=$5
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ABS_FP_FMT="%$((PRECISION + 4)).$((PRECISION))f$UNIT"
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REL_FP_FMT="%0.3f"
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REL_SHOW_PLUS_SIGN_FP_FMT="%+0.3f"
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OLD=$(timeout "${TIMEOUT}" ${COMMAND} "${ENGINE_OLD}" "${TEST}") || return 1
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NEW=$(timeout "${TIMEOUT}" ${COMMAND} "${ENGINE_NEW}" "${TEST}") || return 1
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@@ -68,20 +91,119 @@ function run-compare()
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#check result
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! $OLD || ! $NEW || return 1
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OLD_value=$(echo "$OLD " | cut -d ' ' -f 1)
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OLD_inaccuracy=$(echo "$OLD " | cut -d ' ' -f 2)
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NEW_value=$(echo "$NEW " | cut -d ' ' -f 1)
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NEW_inaccuracy=$(echo "$NEW " | cut -d ' ' -f 2)
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#calc relative speedup
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rel=$(echo "${OLD}" "${NEW}" | awk '{print $2 / $1; }')
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eval "rel_mult=\$${PRE}_rel_mult"
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rel=$(echo "${OLD_value}" "${NEW_value}" | awk '{ print $2 / $1; }')
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#increment n
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((${PRE}_n++))
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#accumulate relative speedup
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eval "rel_mult=\$${PRE}_rel_mult"
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#calc percent to display
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PERCENT=$(echo "$rel" | awk '{print (1.0 - $1) * 100; }')
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if [[ "$OLD_inaccuracy" != "" && "$NEW_inaccuracy" != "" ]]
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then
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DIFF=$(printf "$ABS_FP_FMT -> $ABS_FP_FMT" $OLD_value $NEW_value)
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rel_inaccuracy=$(echo "$OLD_value $OLD_inaccuracy $NEW_value $NEW_inaccuracy" | \
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awk "{
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OLD_value=\$1
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OLD_inaccuracy=\$2
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NEW_value=\$3
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NEW_inaccuracy=\$4
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rel_inaccuracy = (NEW_value / OLD_value) * sqrt ((OLD_inaccuracy / OLD_value) ^ 2 + (NEW_inaccuracy / NEW_value) ^ 2)
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if (rel_inaccuracy < 0) {
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rel_inaccuracy = -rel_inaccuracy
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}
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print rel_inaccuracy
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}")
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PERCENT_inaccuracy=$(echo "$rel_inaccuracy" | awk '{ print $1 * 100.0 }')
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ext=$(echo "$PERCENT $PERCENT_inaccuracy" | \
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awk "{
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PERCENT=\$1
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PERCENT_inaccuracy=\$2
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if (PERCENT > 0.0 && PERCENT > PERCENT_inaccuracy) {
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print \"[+]\"
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} else if (PERCENT < 0 && -PERCENT > PERCENT_inaccuracy) {
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print \"[-]\"
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} else {
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print \"[$APPROXIMATELY_EQUAL]\"
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}
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}")
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if [[ $rel_inaccuracy_tmp -lt 0 ]]
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then
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return 1
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fi
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eval "rel_inaccuracy_tmp=\$${PRE}_rel_inaccuracy_tmp"
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rel_inaccuracy_tmp=$(echo "$rel $rel_inaccuracy $rel_inaccuracy_tmp" | \
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awk "{
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rel=\$1
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rel_inaccuracy=\$2
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rel_inaccuracy_tmp=\$3
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print rel_inaccuracy_tmp + (rel_inaccuracy / rel) ^ 2
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}")
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eval "${PRE}_rel_inaccuracy_tmp=\$rel_inaccuracy_tmp"
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PERCENT=$(printf "%8s %11s" $(printf "$REL_SHOW_PLUS_SIGN_FP_FMT%%" $PERCENT) $(printf "(+-$REL_FP_FMT%%)" $PERCENT_inaccuracy))
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PERCENT="$PERCENT : $ext"
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if [ "${OUTPUT_FORMAT}" == "-m" ]
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then
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WIDTH=42
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DIFF=$(printf "%s%s" "$DIFF" "$(printf "%$(($WIDTH - ${#DIFF}))s")")
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PERCENT=$(printf "%s%s" "$(printf "%$(($WIDTH - ${#PERCENT}))s")" "$PERCENT")
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format="\`%s\`<br>\`%s\`"
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else
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format="%20s : %19s"
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fi
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else
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ext=""
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if [[ "$OLD_inaccuracy" != "" || "$NEW_inaccuracy" != "" ]]
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then
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return 1;
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fi
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DIFF=$(printf "$ABS_FP_FMT -> $ABS_FP_FMT" $OLD_value $NEW_value)
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PERCENT=$(printf "$REL_SHOW_PLUS_SIGN_FP_FMT%%" $PERCENT)
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if [ "${OUTPUT_FORMAT}" == "-m" ]
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then
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WIDTH=20
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DIFF=$(printf "%s%s" "$DIFF" "$(printf "%$(($WIDTH - ${#DIFF}))s")")
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PERCENT=$(printf "%s%s" "$(printf "%$(($WIDTH - ${#PERCENT}))s")" "$PERCENT")
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format="\`%s\`<br>\`%s\`"
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else
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format="%14s : %8s"
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fi
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fi
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rel_mult=$(echo "$rel_mult" "$rel" | awk '{print $1 * $2;}')
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eval "${PRE}_rel_mult=\$rel_mult"
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#calc percent to display
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percent=$(echo "$rel" | awk '{print (1.0 - $1) * 100; }')
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printf "%28s" "$(printf "%6s->%6s (%3.3f)" "$OLD" "$NEW" "$percent")"
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if [ "${OUTPUT_FORMAT}" == "-m" ]
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then
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printf "$format" "$DIFF" "$PERCENT" | sed "s/ /$FIGURE_SPACE/g"
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else
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printf "$format" "$DIFF" "$PERCENT"
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fi
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}
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function run-test()
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@@ -89,11 +211,15 @@ function run-test()
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TEST=$1
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# print only filename
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printf "%40s | " "${TEST##*/}"
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run-compare "./tools/rss-measure.sh" "mem" "${TEST}" || return 1
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printf " | "
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run-compare "./tools/perf.sh ${REPEATS}" "perf" "${TEST}" || return 1
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if [ "${OUTPUT_FORMAT}" == "-m" ]
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then
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printf "%s | " "${TEST##*/}"
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else
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printf "%50s | " "${TEST##*/}"
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fi
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run-compare "./tools/rss-measure.sh" "mem" "${TEST}" 0 k || return 1
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printf " | "
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run-compare "./tools/perf.sh ${REPEATS}" "perf" "${TEST}" 3 s || return 1
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printf "\n"
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}
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@@ -108,16 +234,65 @@ function run-suite()
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}
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date
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printf "%40s | %28s | %28s |\n" "Benchmark" "RSS<br>(+ is better)" "Perf<br>(+ is better)"
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printf "%40s | %28s | %28s |\n" "---------" "---" "----"
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if [ "${OUTPUT_FORMAT}" == "-m" ]
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then
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echo "Benchmark | RSS<br>(+ is better) | Perf<br>(+ is better)"
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echo "---------: | --------- | ---------"
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else
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printf "%50s | %25s | %35s\n" "Benchmark" "RSS<br>(+ is better)" "Perf<br>(+ is better)"
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fi
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run-suite "${BENCH_FOLDER}"
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mem_rel_gmean=$(echo "$mem_rel_mult" "$mem_n" | awk '{print $1 ^ (1.0 / $2);}')
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mem_percent_gmean=$(echo "$mem_rel_gmean" | awk '{print (1.0 - $1) * 100;}')
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if [[ $mem_rel_inaccuracy_tmp != "-1" ]]
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then
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exit_err "Incorrect inaccuracy calculation for memory consumption geometric mean"
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fi
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perf_rel_gmean=$(echo "$perf_rel_mult" "$perf_n" | awk '{print $1 ^ (1.0 / $2);}')
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perf_percent_gmean=$(echo "$perf_rel_gmean" | awk '{print (1.0 - $1) * 100;}')
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if [[ "$perf_rel_inaccuracy_tmp" == "-1" ]]
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then
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exit_err "Incorrect inaccuracy calculation for performance geometric mean"
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else
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perf_percent_inaccuracy=$(echo "$perf_rel_gmean $perf_rel_inaccuracy_tmp $perf_n" | \
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awk "{
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perf_rel_gmean=\$1
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perf_rel_inaccuracy_tmp=\$2
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perf_n=\$3
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print 100.0 * (perf_rel_gmean ^ (1.0 / perf_n) * sqrt (perf_rel_inaccuracy_tmp) / perf_n)
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}")
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perf_ext=$(echo "$perf_percent_gmean $perf_percent_inaccuracy" | \
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awk "{
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perf_percent_gmean=\$1
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perf_percent_inaccuracy=\$2
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if (perf_percent_gmean > 0.0 && perf_percent_gmean > perf_percent_inaccuracy) {
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print \"[+]\"
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} else if (perf_percent_gmean < 0 && -perf_percent_gmean > perf_percent_inaccuracy) {
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print \"[-]\"
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} else {
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print \"[$APPROXIMATELY_EQUAL]\"
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}
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}")
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perf_percent_inaccuracy=$(printf "(+-%0.3f%%) : $perf_ext" $perf_percent_inaccuracy)
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fi
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gmean_label_text="Geometric mean:"
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if [ "${OUTPUT_FORMAT}" == "-m" ]
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then
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mem_percent_gmean_text=$(printf "RSS reduction: \`%0.3f%%\`" "$mem_percent_gmean")
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perf_percent_gmean_text=$(printf "Speed up: \`%0.3f%% %s\`" "$perf_percent_gmean" "$perf_percent_inaccuracy")
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printf "%s | %s | %s\n" "$gmean_label_text" "$mem_percent_gmean_text" "$perf_percent_gmean_text"
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else
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mem_percent_gmean_text=$(printf "RSS reduction: %0.3f%%" "$mem_percent_gmean")
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perf_percent_gmean_text=$(printf "Speed up: %0.3f%% %s" "$perf_percent_gmean" "$perf_percent_inaccuracy")
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printf "%50s | %25s | %51s\n" "$gmean_label_text" "$mem_percent_gmean_text" "$perf_percent_gmean_text"
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fi
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printf "%40s | %28s | %28s |\n" "Geometric mean:" "RSS reduction: $mem_percent_gmean%" "Speed up: $perf_percent_gmean%"
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date
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