- Rename flags to reflect the generation impacted.

runtime/vm/pages.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/pages.h"
 
 #include "platform/assert.h"
 #include "vm/compiler_stats.h"
 #include "vm/gc_marker.h"
 #include "vm/gc_sweeper.h"
 #include "vm/lockers.h"
 #include "vm/object.h"
 #include "vm/thread.h"
 #include "vm/virtual_memory.h"
 
 namespace dart {
 
-DEFINE_FLAG(int, heap_growth_space_ratio, 20,
-            "The desired maximum percentage of free space after GC");
-DEFINE_FLAG(int, heap_growth_time_ratio, 3,
-            "The desired maximum percentage of time spent in GC");
-DEFINE_FLAG(int, heap_growth_rate, 280,
+DEFINE_FLAG(int, heap_growth_rate, 0,
             "The max number of pages the heap can grow at a time");
+DEFINE_FLAG(int, old_gen_growth_space_ratio, 20,
+            "The desired maximum percentage of free space after old gen GC");
+DEFINE_FLAG(int, old_gen_growth_time_ratio, 3,
+            "The desired maximum percentage of time spent in old gen GC");
+DEFINE_FLAG(int, old_gen_growth_rate, 280,
+            "The max number of pages the old generation can grow at a time");
 DEFINE_FLAG(bool, print_free_list_before_gc, false,
             "Print free list statistics before a GC");
 DEFINE_FLAG(bool, print_free_list_after_gc, false,
             "Print free list statistics after a GC");
 DEFINE_FLAG(bool, collect_code, true,
             "Attempt to GC infrequently used code.");
 DEFINE_FLAG(int, code_collection_interval_in_us, 30000000,
             "Time between attempts to collect unused code.");
 DEFINE_FLAG(bool, log_code_drop, false,
             "Emit a log message when pointers to unused code are dropped.");
@@ skipping 100 matching lines @@
       pages_tail_(NULL),
       exec_pages_(NULL),
       exec_pages_tail_(NULL),
       large_pages_(NULL),
       bump_top_(0),
       bump_end_(0),
       max_capacity_in_words_(max_capacity_in_words),
       tasks_lock_(new Monitor()),
       tasks_(0),
       page_space_controller_(heap,
-                             FLAG_heap_growth_space_ratio,
-                             FLAG_heap_growth_rate,
-                             FLAG_heap_growth_time_ratio),
+                             FLAG_old_gen_growth_space_ratio,
+                             FLAG_old_gen_growth_rate,
+                             FLAG_old_gen_growth_time_ratio),
       gc_time_micros_(0),
       collections_(0) {
 }
 
 
 PageSpace::~PageSpace() {
   {
     MonitorLocker ml(tasks_lock());
     while (tasks() > 0) {
       ml.Wait();
@@ skipping 840 matching lines @@
     return 0;
   } else {
     ASSERT(total_time >= gc_time);
     int result= static_cast<int>((static_cast<double>(gc_time) /
                              static_cast<double>(total_time)) * 100);
     return result;
   }
 }
 
 }  // namespace dart