Introduce a CompilerDispatcherTracer and track how long jobs take

src/isolate.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
 
 #include "src/ast/context-slot-cache.h"
 #include "src/base/hashmap.h"
 #include "src/base/platform/platform.h"
 #include "src/base/sys-info.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/basic-block-profiler.h"
 #include "src/bootstrapper.h"
 #include "src/cancelable-task.h"
 #include "src/codegen.h"
 #include "src/compilation-cache.h"
 #include "src/compilation-statistics.h"
+#include "src/compiler-dispatcher/compiler-dispatcher-tracer.h"
 #include "src/compiler-dispatcher/optimizing-compile-dispatcher.h"
 #include "src/crankshaft/hydrogen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/external-reference-table.h"
 #include "src/frames-inl.h"
 #include "src/ic/access-compiler-data.h"
 #include "src/ic/stub-cache.h"
 #include "src/interface-descriptors.h"
 #include "src/interpreter/interpreter.h"
@@ skipping 2189 matching lines @@
   heap_profiler_ = NULL;
 
   heap_.TearDown();
   logger_->TearDown();
 
   delete interpreter_;
   interpreter_ = NULL;
 
   cancelable_task_manager()->CancelAndWait();
 
+  delete compiler_dispatcher_tracer_;
+  compiler_dispatcher_tracer_ = nullptr;
+
   delete cpu_profiler_;
   cpu_profiler_ = NULL;
 
   code_event_dispatcher_.reset();
 
   delete root_index_map_;
   root_index_map_ = NULL;
 
   ClearSerializerData();
 }
@@ skipping 191 matching lines @@
   materialized_object_store_ = new MaterializedObjectStore(this);
   regexp_stack_ = new RegExpStack();
   regexp_stack_->isolate_ = this;
   date_cache_ = new DateCache();
   call_descriptor_data_ =
       new CallInterfaceDescriptorData[CallDescriptors::NUMBER_OF_DESCRIPTORS];
   access_compiler_data_ = new AccessCompilerData();
   cpu_profiler_ = new CpuProfiler(this);
   heap_profiler_ = new HeapProfiler(heap());
   interpreter_ = new interpreter::Interpreter(this);
+  compiler_dispatcher_tracer_ = new CompilerDispatcherTracer(this);
 
   // Enable logging before setting up the heap
   logger_->SetUp(this);
 
   // Initialize other runtime facilities
 #if defined(USE_SIMULATOR)
 #if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_MIPS || \
     V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_S390
   Simulator::Initialize(this);
 #endif
@@ skipping 924 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8