1 #!/bin/sh 2 3 # find the name of the log file to process, it must not start with a dash. 4 log_file="v8.log" 5 for arg in "$@" 6 do 7 if ! expr "X${arg}" : "^X-" > /dev/null; then 8 log_file=${arg} 9 fi 10 done 11 12 tools_path=`cd $(dirname "$0");pwd` 13 if test ! "$D8_PATH"; then 14 d8_public=`which d8` 15 if test -x "$d8_public"; then D8_PATH=$(dirname "$d8_public"); fi 16 fi 17 18 if test ! -n "$D8_PATH"; then 19 D8_PATH=$tools_path/.. 20 fi 21 22 d8_exec=$D8_PATH/d8 23 24 if test ! -x "$d8_exec"; then 25 D8_PATH=`pwd`/out/native 26 d8_exec=$D8_PATH/d8 27 fi 28 29 if test ! -x "$d8_exec"; then 30 d8_exec=`grep -m 1 -o '".*/d8"' $log_file | sed 's/"//g'` 31 fi 32 33 if test ! -x "$d8_exec"; then 34 echo "d8 shell not found in $D8_PATH" 35 echo "To build, execute 'make native' from the V8 directory" 36 exit 1 37 fi 38 39 40 contains=0; 41 for arg in "$@"; do 42 `echo "$arg" | grep -q "^--distortion"` 43 if test $? -eq 0; then 44 contains=1 45 break 46 fi 47 done 48 49 if test "$contains" -eq 0; then 50 # Try to find out how much the instrumentation overhead is. 51 calibration_log=calibration.log 52 calibration_script="for (var i = 0; i < 1000000; i++) print();" 53 54 $d8_exec --nocrankshaft --prof --logfile $calibration_log \ 55 --log-timer-events -e "$calibration_script" > /dev/null 56 t_1_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \ 57 | tail -n1 | awk -F, '{print $3}'` 58 t_1_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \ 59 | tail -n1 | awk -F, '{print $3}'` 60 n_1=`grep "timer-event\|tick" $calibration_log | wc -l` 61 62 $d8_exec --nocrankshaft --prof --logfile $calibration_log \ 63 --log-internal-timer-events -e "$calibration_script" > /dev/null 64 t_2_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \ 65 | tail -n1 | awk -F, '{print $3}'` 66 t_2_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \ 67 | tail -n1 | awk -F, '{print $3}'` 68 n_2=`grep "timer-event\|tick" $calibration_log | wc -l` 69 70 rm $calibration_log 71 72 # Overhead in picoseconds. 73 distortion=`echo "1000*(($t_1_end - $t_1_start) - ($t_2_end - $t_2_start)) \ 74 / ($n_1 - $n_2)" | bc` 75 options="--distortion=$distortion" 76 fi 77 78 cat $log_file | 79 $d8_exec $tools_path/csvparser.js $tools_path/splaytree.js \ 80 $tools_path/codemap.js $tools_path/profile.js $tools_path/profile_view.js \ 81 $tools_path/logreader.js $tools_path/tickprocessor.js \ 82 $tools_path/profviz/composer.js $tools_path/profviz/stdio.js \ 83 -- $@ $options 2>/dev/null > timer-events.plot 84 85 success=$? 86 if test $success -ne 0; then 87 cat timer-events.plot 88 else 89 cat timer-events.plot | gnuplot > timer-events.png 90 fi 91 92 rm -f timer-events.plot 93
