Deprecate self and total time getters and total sample count getter on CpuProfileNode

All of these values are derived from the self samples count and there is no need to evaluate them in v8 when clients can do that when needed on their side.

Also added unsigned GetHitCount() which should be used instead of double GetSelfSamplesCount(). I'm going to deprecate the latter one once Blink has switched to GetHitCount.

BUG=267595
TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/22710006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16119 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8-profiler.h

@@ -61,20 +61,27 @@ class V8_EXPORT CpuProfileNode {
    * Returns total (self + children) execution time of the function,
    * in milliseconds, estimated by samples count.
    */
-  double GetTotalTime() const;
+  V8_DEPRECATED(double GetTotalTime() const);
 
   /**
    * Returns self execution time of the function, in milliseconds,
    * estimated by samples count.
    */
-  double GetSelfTime() const;
+  V8_DEPRECATED(double GetSelfTime() const);
 
   /** Returns the count of samples where function exists. */
-  double GetTotalSamplesCount() const;
+  V8_DEPRECATED(double GetTotalSamplesCount() const);
 
-  /** Returns the count of samples where function was currently executing. */
+  /** DEPRECATED. Please use GetHitCount instead.
+    * Returns the count of samples where function was currently executing.
+    */
   double GetSelfSamplesCount() const;
 
+  /**
+    * Returns the count of samples where the function was currently executing.
+    */
+  unsigned GetHitCount() const;
+
   /** Returns function entry UID. */
   unsigned GetCallUid() const;
 

src/api.cc

@@ -7477,8 +7477,6 @@ Handle<String> CpuProfileNode::GetFunctionName() const {
 
 
 int CpuProfileNode::GetScriptId() const {
-  i::Isolate* isolate = i::Isolate::Current();
-  IsDeadCheck(isolate, "v8::CpuProfileNode::GetScriptId");
   const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this);
   const i::CodeEntry* entry = node->entry();
   return entry->script_id();
@@ -7495,8 +7493,6 @@ Handle<String> CpuProfileNode::GetScriptResourceName() const {
 
 
 int CpuProfileNode::GetLineNumber() const {
-  i::Isolate* isolate = i::Isolate::Current();
-  IsDeadCheck(isolate, "v8::CpuProfileNode::GetLineNumber");
   return reinterpret_cast<const i::ProfileNode*>(this)->entry()->line_number();
 }
 
@@ -7529,9 +7525,12 @@ double CpuProfileNode::GetSelfSamplesCount() const {
 }
 
 
+unsigned CpuProfileNode::GetHitCount() const {
+  return reinterpret_cast<const i::ProfileNode*>(this)->self_ticks();
+}
+
+
 unsigned CpuProfileNode::GetCallUid() const {
-  i::Isolate* isolate = i::Isolate::Current();
-  IsDeadCheck(isolate, "v8::CpuProfileNode::GetCallUid");
   return reinterpret_cast<const i::ProfileNode*>(this)->entry()->GetCallUid();
 }
 
@@ -7542,15 +7541,11 @@ unsigned CpuProfileNode::GetNodeId() const {
 
 
 int CpuProfileNode::GetChildrenCount() const {
-  i::Isolate* isolate = i::Isolate::Current();
-  IsDeadCheck(isolate, "v8::CpuProfileNode::GetChildrenCount");
   return reinterpret_cast<const i::ProfileNode*>(this)->children()->length();
 }
 
 
 const CpuProfileNode* CpuProfileNode::GetChild(int index) const {
-  i::Isolate* isolate = i::Isolate::Current();
-  IsDeadCheck(isolate, "v8::CpuProfileNode::GetChild");
   const i::ProfileNode* child =
       reinterpret_cast<const i::ProfileNode*>(this)->children()->at(index);
   return reinterpret_cast<const CpuProfileNode*>(child);
@@ -7571,8 +7566,6 @@ void CpuProfile::Delete() {
 
 
 unsigned CpuProfile::GetUid() const {
-  i::Isolate* isolate = i::Isolate::Current();
-  IsDeadCheck(isolate, "v8::CpuProfile::GetUid");
   return reinterpret_cast<const i::CpuProfile*>(this)->uid();
 }
 
@@ -7587,8 +7580,6 @@ Handle<String> CpuProfile::GetTitle() const {
 
 
 const CpuProfileNode* CpuProfile::GetTopDownRoot() const {
-  i::Isolate* isolate = i::Isolate::Current();
-  IsDeadCheck(isolate, "v8::CpuProfile::GetTopDownRoot");
   const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this);
   return reinterpret_cast<const CpuProfileNode*>(profile->top_down()->root());
 }

src/profile-generator.cc

@@ -220,7 +220,7 @@ double ProfileNode::GetTotalMillis() const {
 
 
 void ProfileNode::Print(int indent) {
-  OS::Print("%5u %5u %*c %s%s #%d %d",
+  OS::Print("%5u %5u %*c %s%s %d #%d",
             total_ticks_, self_ticks_,
             indent, ' ',
             entry_->name_prefix(),

test/cctest/test-cpu-profiler.cc

@@ -1369,11 +1369,13 @@ TEST(IdleTime) {
       GetChild(root, ProfileGenerator::kProgramEntryName);
   CHECK_EQ(0, programNode->GetChildrenCount());
   CHECK_GE(programNode->GetSelfSamplesCount(), 3);
+  CHECK_GE(programNode->GetHitCount(), 3);
 
   const v8::CpuProfileNode* idleNode =
       GetChild(root, ProfileGenerator::kIdleEntryName);
   CHECK_EQ(0, idleNode->GetChildrenCount());
   CHECK_GE(idleNode->GetSelfSamplesCount(), 3);
+  CHECK_GE(idleNode->GetHitCount(), 3);
 
   cpu_profiler->DeleteAllCpuProfiles();
 }