Disable background compilation for compile all benchmarks

runtime/vm/benchmark_test.cc

 // Copyright (c) 2012, 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/benchmark_test.h"
 
 #include "bin/builtin.h"
 #include "bin/file.h"
 #include "bin/isolate_data.h"
 
 #include "platform/assert.h"
 #include "platform/globals.h"
 
 #include "vm/compiler_stats.h"
 #include "vm/dart_api_impl.h"
 #include "vm/stack_frame.h"
 #include "vm/unit_test.h"
 
 using dart::bin::File;
 
 namespace dart {
 
+DECLARE_FLAG(bool, background_compilation);
+
 Benchmark* Benchmark::first_ = NULL;
 Benchmark* Benchmark::tail_ = NULL;
 const char* Benchmark::executable_ = NULL;
 
 void Benchmark::RunAll(const char* executable) {
   SetExecutable(executable);
   Benchmark* benchmark = first_;
   while (benchmark != NULL) {
     benchmark->RunBenchmark();
     benchmark = benchmark->next_;
@@ skipping 298 matching lines @@
         reinterpret_cast<Dart_NativeEntryResolver>(NativeResolver));
     EXPECT_VALID(lib);
   } else {
     Dart_Handle lib = TestCase::LoadTestScript(
         "import 'pkg/compiler/lib/compiler.dart';",
         reinterpret_cast<Dart_NativeEntryResolver>(NativeResolver));
     EXPECT_VALID(lib);
   }
   Timer timer(true, "Compile all of dart2js benchmark");
   timer.Start();
+  const bool old_flag = FLAG_background_compilation;
+  FLAG_background_compilation = false;
   Dart_Handle result = Dart_CompileAll();
+  FLAG_background_compilation = old_flag;
   EXPECT_VALID(result);
   timer.Stop();
   int64_t elapsed_time = timer.TotalElapsedTime();
   benchmark->set_score(elapsed_time);
   free(dart_root);
   free(script);
 }
 
 
 BENCHMARK(Dart2JSCompilerStats) {
@@ skipping 14 matching lines @@
     Dart_Handle lib = TestCase::LoadTestScript(
         "import 'pkg/compiler/lib/compiler.dart';",
         reinterpret_cast<Dart_NativeEntryResolver>(NativeResolver));
     EXPECT_VALID(lib);
   }
   CompilerStats* stats = thread->isolate()->compiler_stats();
   ASSERT(stats != NULL);
   stats->EnableBenchmark();
   Timer timer(true, "Compile all of dart2js benchmark");
   timer.Start();
+  const bool old_flag = FLAG_background_compilation;
+  FLAG_background_compilation = false;
   Dart_Handle result = Dart_CompileAll();
+  FLAG_background_compilation = old_flag;
   EXPECT_VALID(result);
   timer.Stop();
   int64_t elapsed_time = timer.TotalElapsedTime();
   benchmark->set_score(elapsed_time);
   free(dart_root);
   free(script);
 }
 
 
 //
@@ skipping 314 matching lines @@
                                  thread);
     reader.ReadObject();
     free(buffer);
   }
   timer.Stop();
   int64_t elapsed_time = timer.TotalElapsedTime();
   benchmark->set_score(elapsed_time);
 }
 
 }  // namespace dart