Remove ResourceEvent.

Change-Id: I9a8a667733247152f8760385391e7b3379731f02
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3380982Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78571}

src/heap/heap.cc

@@ -2452,8 +2452,6 @@ void Heap::MarkCompact() {
 
   SetGCState(MARK_COMPACT);
 
-  LOG(isolate_, ResourceEvent("markcompact", "begin"));
-
   CodeSpaceMemoryModificationScope code_modifcation(this);
 
   // Disable soft allocation limits in the shared heap, if one exists, as
@@ -2474,8 +2472,6 @@ void Heap::MarkCompact() {
 
   mark_compact_collector()->CollectGarbage();
 
-  LOG(isolate_, ResourceEvent("markcompact", "end"));
-
   MarkCompactEpilogue();
 
   if (FLAG_allocation_site_pretenuring) {
@@ -2498,7 +2494,6 @@ void Heap::MinorMarkCompact() {
 
   PauseAllocationObserversScope pause_observers(this);
   SetGCState(MINOR_MARK_COMPACT);
-  LOG(isolate_, ResourceEvent("MinorMarkCompact", "begin"));
 
   TRACE_GC(tracer(), GCTracer::Scope::MINOR_MC);
   AlwaysAllocateScope always_allocate(this);
@@ -2513,7 +2508,6 @@ void Heap::MinorMarkCompact() {
 
   minor_mark_compact_collector()->CollectGarbage();
 
-  LOG(isolate_, ResourceEvent("MinorMarkCompact", "end"));
   SetGCState(NOT_IN_GC);
 #else
   UNREACHABLE();
@@ -2564,9 +2558,6 @@ void Heap::EvacuateYoungGeneration() {
 
   mark_compact_collector()->sweeper()->EnsureIterabilityCompleted();
 
-  SetGCState(SCAVENGE);
-  LOG(isolate_, ResourceEvent("scavenge", "begin"));
-
   // Move pages from new->old generation.
   PageRange range(new_space()->first_allocatable_address(), new_space()->top());
   for (auto it = range.begin(); it != range.end();) {
@@ -2600,9 +2591,6 @@ void Heap::EvacuateYoungGeneration() {
   IncrementYoungSurvivorsCounter(promoted);
   IncrementPromotedObjectsSize(promoted);
   IncrementSemiSpaceCopiedObjectSize(0);
-
-  LOG(isolate_, ResourceEvent("scavenge", "end"));
-  SetGCState(NOT_IN_GC);
 }
 
 void Heap::Scavenge() {
@@ -2652,12 +2640,8 @@ void Heap::Scavenge() {
   new_lo_space()->ResetPendingObject();
 
   // Implements Cheney's copying algorithm
-  LOG(isolate_, ResourceEvent("scavenge", "begin"));
-
   scavenger_collector_->CollectGarbage();
 
-  LOG(isolate_, ResourceEvent("scavenge", "end"));
-
   SetGCState(NOT_IN_GC);
 }
 

src/logging/log.cc

@@ -1613,20 +1613,6 @@ void Logger::MoveEventInternal(LogEventsAndTags event, Address from,
   msg.WriteToLogFile();
 }
 
-void Logger::ResourceEvent(const char* name, const char* tag) {
-  if (!FLAG_log) return;
-  MSG_BUILDER();
-  msg << name << kNext << tag << kNext;
-
-  uint32_t sec, usec;
-  if (base::OS::GetUserTime(&sec, &usec) != -1) {
-    msg << sec << kNext << usec << kNext;
-  }
-  msg.AppendFormatString("%.0f",
-                         V8::GetCurrentPlatform()->CurrentClockTimeMillis());
-  msg.WriteToLogFile();
-}
-
 void Logger::SuspectReadEvent(Name name, Object obj) {
   if (!FLAG_log_suspect) return;
   MSG_BUILDER();

src/logging/log.h

@@ -148,12 +148,6 @@ class Logger : public CodeEventListener {
   void NewEvent(const char* name, void* object, size_t size);
   void DeleteEvent(const char* name, void* object);
 
-  // Emits an event with a tag, and some resource usage information.
-  // -> (name, tag, <rusage information>).
-  // Currently, the resource usage information is a process time stamp
-  // and a real time timestamp.
-  void ResourceEvent(const char* name, const char* tag);
-
   // Emits an event that an undefined property was read from an
   // object.
   void SuspectReadEvent(Name name, Object obj);