Add --timing

runtime/vm/isolate.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/isolate.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
 #include "vm/code_observers.h"
@@ skipping 20 matching lines @@
 #include "vm/service_isolate.h"
 #include "vm/simulator.h"
 #include "vm/stack_frame.h"
 #include "vm/store_buffer.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 #include "vm/tags.h"
 #include "vm/thread_interrupter.h"
 #include "vm/thread_registry.h"
 #include "vm/timeline.h"
+#include "vm/timeline_analysis.h"
 #include "vm/timer.h"
 #include "vm/visitor.h"
 
 
 namespace dart {
 
 DECLARE_FLAG(bool, print_metrics);
+DECLARE_FLAG(bool, timing);
 DECLARE_FLAG(bool, trace_service);
 
 DEFINE_FLAG(bool, trace_isolates, false,
             "Trace isolate creation and shut down.");
 DEFINE_FLAG(bool, pause_isolates_on_start, false,
             "Pause isolates before starting.");
 DEFINE_FLAG(bool, pause_isolates_on_exit, false,
             "Pause isolates exiting.");
 DEFINE_FLAG(bool, break_at_isolate_spawn, false,
             "Insert a one-time breakpoint at the entrypoint for all spawned "
@@ skipping 1464 matching lines @@
     // Close all the ports owned by this isolate.
     PortMap::ClosePorts(message_handler());
 
     // Fail fast if anybody tries to post any more messsages to this isolate.
     delete message_handler();
     set_message_handler(NULL);
 
     // Dump all accumulated timer data for the isolate.
     timer_list_.ReportTimers();
 
+    // Before analyzing the isolate's timeline blocks- close all of them.
+    CloseAllTimelineBlocks();
+
+    // Dump all timing data for the isolate.
+    if (FLAG_timing) {
+      TimelinePauseTrace tpt;
+      tpt.Print();
+    }
+
     // Finalize any weak persistent handles with a non-null referent.
     FinalizeWeakPersistentHandlesVisitor visitor;
     api_state()->weak_persistent_handles().VisitHandles(&visitor);
     api_state()->prologue_weak_persistent_handles().VisitHandles(&visitor);
 
     if (FLAG_trace_isolates) {
       heap()->PrintSizes();
       megamorphic_cache_table()->PrintSizes();
       Symbols::DumpStats();
       OS::Print("[-] Stopping isolate:\n"
@@ skipping 21 matching lines @@
 
   // TODO(5411455): For now just make sure there are no current isolates
   // as we are shutting down the isolate.
   Thread::ExitIsolate();
   // All threads should have exited by now.
   thread_registry()->CheckNotScheduled(this);
   Profiler::ShutdownProfilingForIsolate(this);
 }
 
 
+void Isolate::CloseAllTimelineBlocks() {
+  // Close all blocks
+  thread_registry_->CloseAllTimelineBlocks();
+  TimelineEventRecorder* recorder = Timeline::recorder();
+  if (recorder != NULL) {
+    MutexLocker ml(&recorder->lock_);
+    Thread::Current()->CloseTimelineBlock();
+  }
+}
+
+
 Dart_IsolateCreateCallback Isolate::create_callback_ = NULL;
 Dart_IsolateInterruptCallback Isolate::interrupt_callback_ = NULL;
 Dart_IsolateUnhandledExceptionCallback
     Isolate::unhandled_exception_callback_ = NULL;
 Dart_IsolateShutdownCallback Isolate::shutdown_callback_ = NULL;
 Dart_FileOpenCallback Isolate::file_open_callback_ = NULL;
 Dart_FileReadCallback Isolate::file_read_callback_ = NULL;
 Dart_FileWriteCallback Isolate::file_write_callback_ = NULL;
 Dart_FileCloseCallback Isolate::file_close_callback_ = NULL;
 Dart_EntropySource Isolate::entropy_source_callback_ = NULL;
@@ skipping 747 matching lines @@
                            serialized_message_, serialized_message_len_);
 }
 
 
 void IsolateSpawnState::Cleanup() {
   SwitchIsolateScope switch_scope(I);
   Dart::ShutdownIsolate();
 }
 
 }  // namespace dart