src: use `unordered_map` for perf marks

PR-URL: #19558
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

src/env-inl.h

@@ -531,7 +531,8 @@ inline performance::performance_state* Environment::performance_state() {
  return performance_state_.get();
}

inline std::map<std::string, uint64_t>* Environment::performance_marks() {
inline std::unordered_map<std::string, uint64_t>*
    Environment::performance_marks() {
  return &performance_marks_;
}

src/env.h

@@ -38,7 +38,6 @@
#include "node_http2_state.h"

#include <list>
#include <map>
#include <stdint.h>
#include <vector>
#include <unordered_map>
@@ -646,7 +645,7 @@ class Environment {
      file_handle_read_wrap_freelist();

  inline performance::performance_state* performance_state();
  inline std::map<std::string, uint64_t>* performance_marks();
  inline std::unordered_map<std::string, uint64_t>* performance_marks();

  void CollectExceptionInfo(v8::Local<v8::Value> context,
                            int errorno,
@@ -795,7 +794,7 @@ class Environment {
  int should_not_abort_scope_counter_ = 0;

  std::unique_ptr<performance::performance_state> performance_state_;
  std::map<std::string, uint64_t> performance_marks_;
  std::unordered_map<std::string, uint64_t> performance_marks_;

#if HAVE_INSPECTOR
  std::unique_ptr<inspector::Agent> inspector_agent_;