Revert of [heap] Switch to 500k pages

test/cctest/heap/test-heap.cc

Index: test/cctest/heap/test-heap.cc
diff --git a/test/cctest/heap/test-heap.cc b/test/cctest/heap/test-heap.cc
index d716aaac26b38fc9db8be8fe7cd4da8846457ae0..d4ebd04898bea1c8e024c534115c3ab52faa6240 100644
--- a/test/cctest/heap/test-heap.cc
+++ b/test/cctest/heap/test-heap.cc
@@ -2228,18 +2228,6 @@
 // Test the case where allocation must be done from the free list, so filler
 // may precede or follow the object.
 TEST(TestAlignedOverAllocation) {
-  Heap* heap = CcTest::heap();
-  // Test checks for fillers before and behind objects and requires a fresh
-  // page and empty free list.
-  heap::AbandonCurrentlyFreeMemory(heap->old_space());
-  // Allocate a dummy object to properly set up the linear allocation info.
-  AllocationResult dummy =
-      heap->old_space()->AllocateRawUnaligned(kPointerSize);
-  CHECK(!dummy.IsRetry());
-  heap->CreateFillerObjectAt(
-      HeapObject::cast(dummy.ToObjectChecked())->address(), kPointerSize,
-      ClearRecordedSlots::kNo);
-
   // Double misalignment is 4 on 32-bit platforms, 0 on 64-bit ones.
   const intptr_t double_misalignment = kDoubleSize - kPointerSize;
   Address start;
@@ -3623,12 +3611,8 @@
   i::FLAG_page_promotion = false;
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
-  // If there's snapshot available, we don't know whether 20 small arrays will
-  // fit on the initial pages.
-  if (!isolate->snapshot_available()) return;
   Factory* factory = isolate->factory();
   Heap* heap = isolate->heap();
-
   v8::HandleScope scope(CcTest::isolate());
   static const int number_of_test_pages = 20;
 
@@ -3658,8 +3642,14 @@
                           "triggered by test 2");
   CHECK_GE(overall_page_count, old_space->CountTotalPages() * 2);
 
+  // Triggering a last-resort GC should cause all pages to be released to the
+  // OS so that other processes can seize the memory.  If we get a failure here
+  // where there are 2 pages left instead of 1, then we should increase the
+  // size of the first page a little in SizeOfFirstPage in spaces.cc.  The
+  // first page should be small in order to reduce memory used when the VM
+  // boots, but if the 20 small arrays don't fit on the first page then that's
+  // an indication that it is too small.
   heap->CollectAllAvailableGarbage("triggered really hard");
-  // Triggering a last-resort GC should release all additional pages.
   CHECK_EQ(initial_page_count, old_space->CountTotalPages());
 }