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 "$0");pwd` 13 if [ ! "$D8_PATH" ]; then 14 d8_public=`which d8` 15 if [ -x "$d8_public" ]; then D8_PATH=$(dirname "$d8_public"); fi 16 fi 17 [ -n "$D8_PATH" ] || D8_PATH=$tools_path/.. 18 d8_exec=$D8_PATH/d8 19 20 if [ ! -x "$d8_exec" ]; then 21 D8_PATH=`pwd`/out/native 22 d8_exec=$D8_PATH/d8 23 fi 24 25 if [ ! -x "$d8_exec" ]; then 26 d8_exec=`grep -m 1 -o '".*/d8"' $log_file | sed 's/"//g'` 27 fi 28 29 if [ ! -x "$d8_exec" ]; then 30 echo "d8 shell not found in $D8_PATH" 31 echo "To build, execute 'make native' from the V8 directory" 32 exit 1 33 fi 34 35 if [[ "$@" != *--distortion* ]]; then 36 # Try to find out how much the instrumentation overhead is. 37 calibration_log=calibration.log 38 calibration_script="for (var i = 0; i < 1000000; i++) print();" 39 40 $d8_exec --nocrankshaft --prof --logfile $calibration_log \ 41 --log-timer-events -e "$calibration_script" > /dev/null 42 t_1_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \ 43 | tail -n1 | awk -F, '{print $3}'` 44 t_1_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \ 45 | tail -n1 | awk -F, '{print $3}'` 46 n_1=`grep "timer-event\|tick" $calibration_log | wc -l` 47 48 $d8_exec --nocrankshaft --prof --logfile $calibration_log \ 49 --log-internal-timer-events -e "$calibration_script" > /dev/null 50 t_2_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \ 51 | tail -n1 | awk -F, '{print $3}'` 52 t_2_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \ 53 | tail -n1 | awk -F, '{print $3}'` 54 n_2=`grep "timer-event\|tick" $calibration_log | wc -l` 55 56 rm $calibration_log 57 58 # Overhead in picoseconds. 59 options=--distortion= 60 options+=`echo "1000*(($t_1_end - $t_1_start) - ($t_2_end - $t_2_start)) \ 61 / ($n_1 - $n_2)" | bc` 62 echo $options 63 fi 64 65 cat $log_file | 66 $d8_exec $tools_path/csvparser.js $tools_path/splaytree.js \ 67 $tools_path/codemap.js $tools_path/profile.js $tools_path/profile_view.js \ 68 $tools_path/logreader.js $tools_path/tickprocessor.js \ 69 $tools_path/profviz/composer.js $tools_path/profviz/stdio.js \ 70 -- $@ $options 2>/dev/null | gnuplot > timer-events.png 71
