Add initial semi-working producers profile.

tools/tickprocessor.js

 // Copyright 2009 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 57 matching lines @@
           parsers: [null, this.createAddressParser('code'), parseInt, null],
           processor: this.processCodeCreation, backrefs: true },
       'code-move': { parsers: [this.createAddressParser('code'),
           this.createAddressParser('code-move-to')],
           processor: this.processCodeMove, backrefs: true },
       'code-delete': { parsers: [this.createAddressParser('code')],
           processor: this.processCodeDelete, backrefs: true },
       'tick': { parsers: [this.createAddressParser('code'),
           this.createAddressParser('stack'), parseInt, 'var-args'],
           processor: this.processTick, backrefs: true },
+      'heap-sample-begin': { parsers: [null, null, parseInt],
+          processor: this.processHeapSampleBegin },
+      'heap-sample-end': { parsers: [null, null],
+          processor: this.processHeapSampleEnd },
+      'heap-js-prod-item': { parsers: [null, 'var-args'],
+          processor: this.processJSProducer, backrefs: true },
+      // Ignored events.
       'profiler': null,
+      'heap-sample-stats': null,
+      'heap-sample-item': null,
+      'heap-js-cons-item': null,
+      'heap-js-ret-item': null,
       // Obsolete row types.
       'code-allocate': null,
       'begin-code-region': null,
       'end-code-region': null });
 
   this.cppEntriesProvider_ = cppEntriesProvider;
   this.ignoreUnknown_ = ignoreUnknown;
   this.stateFilter_ = stateFilter;
   var ticks = this.ticks_ =
     { total: 0, unaccounted: 0, excluded: 0, gc: 0 };
@@ skipping 17 matching lines @@
         }
         break;
     }
   };
 
   this.profile_ = new Profile(separateIc);
   this.codeTypes_ = {};
   // Count each tick as a time unit.
   this.viewBuilder_ = new devtools.profiler.ViewBuilder(1);
   this.lastLogFileName_ = null;
+
+  this.generation_ = 1;
+  this.currentProducerProfile_ = null;
 };
 inherits(TickProcessor, devtools.profiler.LogReader);
 
 
 TickProcessor.VmStates = {
   JS: 0,
   GC: 1,
   COMPILER: 2,
   OTHER: 3,
   EXTERNAL: 4
@@ skipping 87 matching lines @@
   if (vmState == TickProcessor.VmStates.GC) this.ticks_.gc++;
   if (!this.includeTick(vmState)) {
     this.ticks_.excluded++;
     return;
   }
 
   this.profile_.recordTick(this.processStack(pc, stack));
 };
 
 
+TickProcessor.prototype.processHeapSampleBegin = function(space, state, ticks) {
+  if (space != 'Heap') return;
+  this.currentProducerProfile_ = new devtools.profiler.CallTree();
+};
+
+
+TickProcessor.prototype.processHeapSampleEnd = function(space, state) {
+  if (space != 'Heap' || !this.currentProducerProfile_) return;
+
+  print('Generation ' + this.generation_ + ':');
+  var tree = this.currentProducerProfile_;
+  tree.computeTotalWeights();
+  var producersView = this.viewBuilder_.buildView(tree);
+  // Sort by total time, desc, then by name, desc.
+  producersView.sort(function(rec1, rec2) {
+      return rec2.totalTime - rec1.totalTime ||
+          (rec2.internalFuncName < rec1.internalFuncName ? -1 : 1); });
+  this.printHeavyProfile(producersView.head.children);
+
+  this.currentProducerProfile_ = null;
+  this.generation_++;
+};
+
+
+TickProcessor.prototype.processJSProducer = function(constructor, stack) {
+  if (!this.currentProducerProfile_) return;
+  if (stack.length == 0) return;
+  var first = stack.shift();
+  var processedStack =
+      this.profile_.resolveAndFilterFuncs_(this.processStack(first, stack));
+  processedStack.unshift(constructor);
+  this.currentProducerProfile_.addPath(processedStack);
+};
+
+
 TickProcessor.prototype.printStatistics = function() {
   print('Statistical profiling result from ' + this.lastLogFileName_ +
         ', (' + this.ticks_.total +
         ' ticks, ' + this.ticks_.unaccounted + ' unaccounted, ' +
         this.ticks_.excluded + ' excluded).');
 
   if (this.ticks_.total == 0) return;
 
   // Print the unknown ticks percentage if they are not ignored.
   if (!this.ignoreUnknown_ && this.ticks_.unaccounted > 0) {
@@ skipping 440 matching lines @@
       if (arg !== synArg && dispatch === this.argsDispatch_[synArg]) {
         synonims.push(synArg);
         delete this.argsDispatch_[synArg];
       }
     }
     print('  ' + padRight(synonims.join(', '), 20) + dispatch[2]);
   }
   quit(2);
 };