Mark timed range in the profile plot.

tools/profviz/composer.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 25 matching lines @@
   var kV8BinarySuffixes = ["/d8", "/libv8.so"];
   var kStackFrames = 8;             // Stack frames to display in the plot.
 
   var kTimerEventWidth = 0.33;      // Width of each timeline.
   var kExecutionFrameWidth = 0.2;   // Width of the top stack frame line.
   var kStackFrameWidth = 0.1;       // Width of the lower stack frame lines.
   var kGapWidth = 0.05;             // Gap between stack frame lines.
 
   var kY1Offset = 11;               // Offset for stack frame vs. event lines.
   var kDeoptRow = 7;                // Row displaying deopts.
+  var kGetTimeHeight = 0.5;         // Height of marker displaying timed part.
   var kMaxDeoptLength = 4;          // Draw size of the largest deopt.
   var kPauseLabelPadding = 5;       // Padding for pause time labels.
   var kNumPauseLabels = 7;          // Number of biggest pauses to label.
   var kCodeKindLabelPadding = 100;  // Padding for code kind labels.
 
   var kTickHalfDuration = 0.5;      // Duration of half a tick in ms.
   var kMinRangeLength = 0.0005;     // Minimum length for an event in ms.
 
   var kNumThreads = 2;              // Number of threads.
   var kExecutionThreadId = 0;       // ID of main thread.
@@ skipping 73 matching lines @@
       'code stub': new CodeKind("#FF00FF", [2]),
       'built-in ': new CodeKind("#AA00AA", [3]),
       'inl.cache': new CodeKind("#4444AA",
                                 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]),
       'reg.exp. ': new CodeKind("#0000FF", [15]),
   };
 
   var code_map = new CodeMap();
   var execution_pauses = [];
   var deopts = [];
+  var gettime = [];
   var event_stack = [];
   var last_time_stamp = [];
   for (var i = 0; i < kNumThreads; i++) {
     event_stack[i] = [];
     last_time_stamp[i] = -1;
   }
 
   var range_start = undefined;
   var range_end = undefined;
   var obj_index = 0;
@@ skipping 118 matching lines @@
     };
 
     var processCodeDeleteEvent = function(address) {
       code_map.deleteCode(address);
     };
 
     var processCodeDeoptEvent = function(time, size) {
       deopts.push(new Deopt(time, size));
     }
 
+    var processCurrentTimeEvent = function(time) {
+      gettime.push(time);
+    }
+
     var processSharedLibrary = function(name, start, end) {
       var code_entry = new CodeMap.CodeEntry(end - start, name);
       code_entry.kind = -3;  // External code kind.
       for (var i = 0; i < kV8BinarySuffixes.length; i++) {
         var suffix = kV8BinarySuffixes[i];
         if (name.indexOf(suffix, name.length - suffix.length) >= 0) {
           code_entry.kind = -1;  // V8 runtime code kind.
           break;
         }
       }
@@ skipping 22 matching lines @@
         'shared-library': { parsers: [null, parseInt, parseInt],
                             processor: processSharedLibrary },
         'code-creation':  { parsers: [null, parseInt, parseInt, parseInt, null],
                             processor: processCodeCreateEvent },
         'code-move':      { parsers: [parseInt, parseInt],
                             processor: processCodeMoveEvent },
         'code-delete':    { parsers: [parseInt],
                             processor: processCodeDeleteEvent },
         'code-deopt':     { parsers: [parseTimeStamp, parseInt],
                             processor: processCodeDeoptEvent },
+        'current-time':   { parsers: [parseTimeStamp],
+                            processor: processCurrentTimeEvent },
         'tick':           { parsers: [parseInt, parseTimeStamp,
                                       null, null, parseInt, 'var-args'],
                             processor: processTickEvent }
       });
 
     var line;
     while (line = input()) {
       logreader.processLogLine(line);
     }
 
@@ skipping 55 matching lines @@
     output("set xlabel \"execution time in ms\"");
     output("set xrange [" + range_start + ":" + range_end + "]");
     output("set style fill pattern 2 bo 1");
     output("set style rect fs solid 1 noborder");
     output("set style line 1 lt 1 lw 1 lc rgb \"#000000\"");
     output("set border 15 lw 0.2");  // Draw thin border box.
     output("set style line 2 lt 1 lw 1 lc rgb \"#9944CC\"");
     output("set xtics out nomirror");
     output("unset key");
 
-    function DrawBarBase(color, start, end, top, bottom) {
+    function DrawBarBase(color, start, end, top, bottom, transparency) {
       obj_index++;
       command = "set object " + obj_index + " rect";
       command += " from " + start + ", " + top;
       command += " to " + end + ", " + bottom;
       command += " fc rgb \"" + color + "\"";
+      if (transparency) {
+        command += " fs transparent solid " + transparency;
+      }
       output(command);
     }
 
     function DrawBar(row, color, start, end, width) {
       DrawBarBase(color, start, end, row + width, row - width);
     }
 
     function DrawHalfBar(row, color, start, end, width) {
       DrawBarBase(color, start, end, row, row - width);
     }
@@ skipping 13 matching lines @@
     deopts.sort(function(a, b) { return b.size - a.size; });
     var max_deopt_size = deopts.length > 0 ? deopts[0].size : Infinity;
 
     for (var i = 0; i < deopts.length; i++) {
       var deopt = deopts[i];
       DrawHalfBar(kDeoptRow, "#9944CC", deopt.time,
                   deopt.time + 10 * pause_tolerance,
                   deopt.size / max_deopt_size * kMaxDeoptLength);
     }
 
+    // Plot current time polls.
+    if (gettime.length > 1) {
+      var start = gettime[0];
+      var end = gettime.pop();
+      DrawBarBase("#0000BB", start, end, kGetTimeHeight, 0, 0.2);
+    }
+
     // Name Y-axis.
     var ytics = [];
     for (name in TimerEvents) {
       var index = TimerEvents[name].index;
       var label = TimerEvents[name].label;
       ytics.push('"' + label + ' (' + percentages[name] + '%%)" ' + index);
     }
     ytics.push('"code kind color coding" ' + kY1Offset);
     ytics.push('"code kind in execution" ' + (kY1Offset - 1));
     ytics.push('"top ' + kStackFrames + ' js stack frames"' + ' ' +
@@ skipping 81 matching lines @@
     output("plot '-' using 1:2 axes x1y2 with impulses ls 1");
     for (var i = 0; i < execution_pauses.length; i++) {
       var pause = execution_pauses[i];
       output(pause.end + " " + pause.duration());
       obj_index++;
     }
     output("e");
     return obj_index;
   };
 }