Re-land "Add methods to enable configuration of ResourceConstraints based on limits derived at..."

src/defaults.cc

Index: src/defaults.cc
diff --git a/test/mjsunit/parallel-invalidate-transition-map.js b/src/defaults.cc
similarity index 53%
copy from test/mjsunit/parallel-invalidate-transition-map.js
copy to src/defaults.cc
index 9a5d31003f93307f958832a7a2a4e7e3331d7d2c..301155f94dcb24f758eecf7f2d113ab026853381 100644
--- a/test/mjsunit/parallel-invalidate-transition-map.js
+++ b/src/defaults.cc
@@ -25,33 +25,47 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --track-fields --track-double-fields --allow-natives-syntax
-// Flags: --concurrent-recompilation --concurrent-recompilation-delay=100
+#include "../include/v8-defaults.h"
 
-if (!%IsConcurrentRecompilationSupported()) {
-  print("Concurrent recompilation is disabled. Skipping this test.");
-  quit();
-}
+#include "platform.h"
+#include "globals.h"
+#include "v8.h"
+
+namespace v8 {
+
+bool ConfigureResourceConstraintsForCurrentPlatform(
+    ResourceConstraints* constraints) {
+  if (constraints == NULL) {
+    return false;
+  }
 
-function new_object() {
-  var o = {};
-  o.a = 1;
-  o.b = 2;
-  return o;
+  uint64_t physical_memory = i::OS::TotalPhysicalMemory();
+  int lump_of_memory = (i::kPointerSize / 4) * i::MB;
+
+  // The young_space_size should be a power of 2 and old_generation_size should
+  // be a multiple of Page::kPageSize.
+  if (physical_memory > 2ul * i::GB) {
+    constraints->set_max_young_space_size(16 * lump_of_memory);
+    constraints->set_max_old_space_size(700 * lump_of_memory);
+    constraints->set_max_executable_size(256 * lump_of_memory);
+  } else if (physical_memory > 512ul * i::MB) {
+    constraints->set_max_young_space_size(8 * lump_of_memory);
+    constraints->set_max_old_space_size(192 * lump_of_memory);
+    constraints->set_max_executable_size(192 * lump_of_memory);
+  } else /* (physical_memory <= 512GB) */ {
+    constraints->set_max_young_space_size(2 * lump_of_memory);
+    constraints->set_max_old_space_size(96 * lump_of_memory);
+    constraints->set_max_executable_size(96 * lump_of_memory);
+  }
+  return true;
 }
 
-function add_field(obj) {
-  obj.c = 3;
+
+bool SetDefaultResourceConstraintsForCurrentPlatform() {
+  ResourceConstraints constraints;
+  if (!ConfigureResourceConstraintsForCurrentPlatform(&constraints))
+    return false;
+  return SetResourceConstraints(&constraints);
 }
 
-add_field(new_object());
-add_field(new_object());
-%OptimizeFunctionOnNextCall(add_field, "concurrent");
-
-var o = new_object();
-// Trigger optimization in the background thread.
-add_field(o);
-// Invalidate transition map while optimization is underway.
-o.c = 2.2;
-// Sync with background thread to conclude optimization that bailed out.
-assertUnoptimized(add_field, "sync");
+}  // namespace v8::internal