Perform scavenge in idle tasks.

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 366afd0bc0f3d7251a7be4fcb8dd4686f4682ae4..89d61caef9f42067572912a556d2e8c3bd8a2eaf 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -15,6 +15,7 @@
 #include "src/heap/gc-idle-time-handler.h"
 #include "src/heap/incremental-marking.h"
 #include "src/heap/mark-compact.h"
+#include "src/heap/scavenge-job.h"

[Hannes Payer (out of office), 2015/09/21 09:00:57]

Move this include to heap.cc

 #include "src/heap/spaces.h"
 #include "src/heap/store-buffer.h"
 #include "src/list.h"
@@ -1187,6 +1188,10 @@ class Heap {
   void EnableInlineAllocation();
   void DisableInlineAllocation();
 
+  // Update the inline allocation limit.
+  void LowerInlineAllocationLimit(intptr_t step);
+  void ResetInlineAllocationLimit();

[Hannes Payer (out of office), 2015/09/21 09:00:57]

We should not expose them on the public heap API.

[ulan, 2015/09/23 09:58:38]

Incremental marker calls these functions.

[Hannes Payer (out of office), 2015/09/23 14:16:39]

As discussed offline, we make them friends and do not expose them publicly.

+
   // ===========================================================================
   // Methods triggering GCs. ===================================================
   // ===========================================================================
@@ -1211,6 +1216,9 @@ class Heap {
   // Invoked when GC was requested via the stack guard.
   void HandleGCRequest();
 
+  // Schedule idle scavenge job.
+  void ScheduleIdleScavenge(int bytes_allocated);

[Hannes Payer (out of office), 2015/09/21 09:00:57]

This one should be private as well.

[ulan, 2015/09/23 09:58:38]

This is called by NewSpace on interrupt.

+
   // ===========================================================================
   // Iterators. ================================================================
   // ===========================================================================
@@ -2265,6 +2273,8 @@ class Heap {
 
   ObjectStats* object_stats_;
 
+  ScavengeJob scavenge_job_;

[Hannes Payer (out of office), 2015/09/21 09:00:57]

If you make ScavengeJob a ScavengeJob*, you don't have to include it in heap.h

[ulan, 2015/09/23 09:58:38]

Done.

+
   // These two counters are monotomically increasing and never reset.
   size_t full_codegen_bytes_generated_;
   size_t crankshaft_codegen_bytes_generated_;