Remove eager sweeping for lazy swept spaces. Try to find in SlowAllocateRaw a bounded number of tim…

src/mark-compact.cc

Index: src/mark-compact.cc
diff --git a/src/mark-compact.cc b/src/mark-compact.cc
index 1af3074f36c48f27c0689d2753ab865f8015447b..3672cd004460f058a78c868c4be4deb46ec7fbe3 100644
--- a/src/mark-compact.cc
+++ b/src/mark-compact.cc
@@ -3524,7 +3524,6 @@ void MarkCompactCollector::SweepSpace(PagedSpace* space, SweeperType sweeper) {
 
   intptr_t freed_bytes = 0;
   int pages_swept = 0;
-  intptr_t newspace_size = space->heap()->new_space()->Size();
   bool lazy_sweeping_active = false;
   bool unused_page_present = false;
 
@@ -3587,15 +3586,8 @@ void MarkCompactCollector::SweepSpace(PagedSpace* space, SweeperType sweeper) {
         }
         freed_bytes += SweepConservatively(space, p);
         pages_swept++;
-        if (freed_bytes > 2 * newspace_size) {
-          space->SetPagesToSweep(p->next_page());
-          lazy_sweeping_active = true;
-        } else {
-          if (FLAG_gc_verbose) {
-            PrintF("Only %" V8PRIdPTR " bytes freed.  Still sweeping.\n",
-                   freed_bytes);
-          }
-        }
+        space->SetPagesToSweep(p->next_page());
+        lazy_sweeping_active = true;
         break;
       }
       case PRECISE: {