Version 2.2.11
Fix crash bug in liveedit on 64 bit.
Use 'full compiler' when debugging is active. This should increase
the density of possible break points, making single step more fine
grained. This will only take effect for functions compiled after
debugging has been started, so recompilation of all functions is
required to get the full effect. IA32 and x64 only for now.
Misc. fixes to the Solaris build.
Add new flags --print-cumulative-gc-stat and --trace-gc-nvp.
Add filtering of CPU profiles by security context.
Fix crash bug on ARM when running without VFP2 or VFP3.
Incremental performance improvements in all backends.
Review URL: http://codereview.chromium.org/2084017
git-svn-id: http://v8.googlecode.com/svn/trunk@4701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/heap.h b/src/heap.h
index b4af6d9..74e5a31 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -981,6 +981,8 @@
static void ClearJSFunctionResultCaches();
+ static GCTracer* tracer() { return tracer_; }
+
private:
static int reserved_semispace_size_;
static int max_semispace_size_;
@@ -1020,6 +1022,7 @@
static int PromotedExternalMemorySize();
static int mc_count_; // how many mark-compact collections happened
+ static int ms_count_; // how many mark-sweep collections happened
static int gc_count_; // how many gc happened
// Total length of the strings we failed to flatten since the last GC.
@@ -1223,6 +1226,8 @@
SharedFunctionInfo* shared,
Object* prototype);
+ static GCTracer* tracer_;
+
// Initializes the number to string cache based on the max semispace size.
static Object* InitializeNumberStringCache();
@@ -1629,19 +1634,30 @@
class GCTracer BASE_EMBEDDED {
public:
- // Time spent while in the external scope counts towards the
- // external time in the tracer and will be reported separately.
- class ExternalScope BASE_EMBEDDED {
+ class Scope BASE_EMBEDDED {
public:
- explicit ExternalScope(GCTracer* tracer) : tracer_(tracer) {
+ enum ScopeId {
+ EXTERNAL,
+ MC_MARK,
+ MC_SWEEP,
+ MC_COMPACT,
+ kNumberOfScopes
+ };
+
+ Scope(GCTracer* tracer, ScopeId scope)
+ : tracer_(tracer),
+ scope_(scope) {
start_time_ = OS::TimeCurrentMillis();
}
- ~ExternalScope() {
- tracer_->external_time_ += OS::TimeCurrentMillis() - start_time_;
+
+ ~Scope() {
+ ASSERT((0 <= scope_) && (scope_ < kNumberOfScopes));
+ tracer_->scopes_[scope_] += OS::TimeCurrentMillis() - start_time_;
}
private:
GCTracer* tracer_;
+ ScopeId scope_;
double start_time_;
};
@@ -1667,6 +1683,19 @@
int marked_count() { return marked_count_; }
+ void increment_promoted_objects_size(int object_size) {
+ promoted_objects_size_ += object_size;
+ }
+
+ // Returns maximum GC pause.
+ static int get_max_gc_pause() { return max_gc_pause_; }
+
+ // Returns maximum size of objects alive after GC.
+ static int get_max_alive_after_gc() { return max_alive_after_gc_; }
+
+ // Returns minimal interval between two subsequent collections.
+ static int get_min_in_mutator() { return min_in_mutator_; }
+
private:
// Returns a string matching the collector.
const char* CollectorString();
@@ -1677,12 +1706,9 @@
}
double start_time_; // Timestamp set in the constructor.
- double start_size_; // Size of objects in heap set in constructor.
+ int start_size_; // Size of objects in heap set in constructor.
GarbageCollector collector_; // Type of collector.
- // Keep track of the amount of time spent in external callbacks.
- double external_time_;
-
// A count (including this one, eg, the first collection is 1) of the
// number of garbage collections.
int gc_count_;
@@ -1706,6 +1732,38 @@
// The count from the end of the previous full GC. Will be zero if there
// was no previous full GC.
int previous_marked_count_;
+
+ // Amounts of time spent in different scopes during GC.
+ double scopes_[Scope::kNumberOfScopes];
+
+ // Total amount of space either wasted or contained in one of free lists
+ // before the current GC.
+ int in_free_list_or_wasted_before_gc_;
+
+ // Difference between space used in the heap at the beginning of the current
+ // collection and the end of the previous collection.
+ int allocated_since_last_gc_;
+
+ // Amount of time spent in mutator that is time elapsed between end of the
+ // previous collection and the beginning of the current one.
+ double spent_in_mutator_;
+
+ // Size of objects promoted during the current collection.
+ int promoted_objects_size_;
+
+ // Maximum GC pause.
+ static int max_gc_pause_;
+
+ // Maximum size of objects alive after GC.
+ static int max_alive_after_gc_;
+
+ // Minimal interval between two subsequent collections.
+ static int min_in_mutator_;
+
+ // Size of objects alive after last GC.
+ static int alive_after_last_gc_;
+
+ static double last_gc_end_timestamp_;
};