Version 3.4.2
More work on ES-Harmony proxies. Still hidden behind a flag.
Fixed some crash bugs and improved performance.
Fixed building with gdb debugging support.
Do not install SIGPROF handler until it is needed.
Added DateTimeFormat to i18n API.
Fixed compilation on OpenBSD.
Take the ulimit into account when sizing the heap. OpenBSD users
may still have to increase the default ulimit to run heavy pages in
the browser.
Review URL: http://codereview.chromium.org/6993057
git-svn-id: http://v8.googlecode.com/svn/trunk@8178 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/heap.cc b/src/heap.cc
index 1b46184..aa728fd 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -107,6 +107,7 @@
cell_space_(NULL),
lo_space_(NULL),
gc_state_(NOT_IN_GC),
+ gc_post_processing_depth_(0),
mc_count_(0),
ms_count_(0),
gc_count_(0),
@@ -152,6 +153,29 @@
max_semispace_size_ = reserved_semispace_size_ = V8_MAX_SEMISPACE_SIZE;
#endif
+ intptr_t max_virtual = OS::MaxVirtualMemory();
+
+ if (max_virtual > 0) {
+ intptr_t half = max_virtual >> 1;
+ intptr_t quarter = max_virtual >> 2;
+ // If we have limits on the amount of virtual memory we can use then we may
+ // be forced to lower the allocation limits. We reserve one quarter of the
+ // memory for young space and off-heap data. The rest is distributed as
+ // described below.
+ if (code_range_size_ > 0) {
+ // Reserve a quarter of the memory for the code range. The old space
+ // heap gets the remaining half. There is some unavoidable double
+ // counting going on here since the heap size is measured in committed
+ // virtual memory and the code range is only reserved virtual memory.
+ code_range_size_ = Min(code_range_size_, quarter);
+ max_old_generation_size_ = Min(max_old_generation_size_, half);
+ } else {
+ // Reserve three quarters of the memory for the old space heap including
+ // the executable code.
+ max_old_generation_size_ = Min(max_old_generation_size_, half + quarter);
+ }
+ }
+
memset(roots_, 0, sizeof(roots_[0]) * kRootListLength);
global_contexts_list_ = NULL;
mark_compact_collector_.heap_ = this;
@@ -771,11 +795,13 @@
isolate_->counters()->objs_since_last_young()->Set(0);
+ gc_post_processing_depth_++;
{ DisableAssertNoAllocation allow_allocation;
GCTracer::Scope scope(tracer, GCTracer::Scope::EXTERNAL);
next_gc_likely_to_collect_more =
isolate_->global_handles()->PostGarbageCollectionProcessing(collector);
}
+ gc_post_processing_depth_--;
// Update relocatables.
Relocatable::PostGarbageCollectionProcessing();
@@ -1610,7 +1636,8 @@
map->set_prototype_transitions(empty_fixed_array());
map->set_unused_property_fields(0);
map->set_bit_field(0);
- map->set_bit_field2((1 << Map::kIsExtensible) | (1 << Map::kHasFastElements));
+ map->set_bit_field2(1 << Map::kIsExtensible);
+ map->set_elements_kind(JSObject::FAST_ELEMENTS);
// If the map object is aligned fill the padding area with Smi 0 objects.
if (Map::kPadStart < Map::kSize) {