Method SortChildrenByTotalTime

be/src/util/runtime-profile.cc:1057–1075

}

void RuntimeProfile::SortChildrenByTotalTime() {
  lock_guard<SpinLock> l(children_lock_);
  // Create a snapshot of total time values so that they don't change while we're
  // sorting. Sort the <total_time, index> pairs, then reshuffle children_.
  vector<pair<int64_t, int64_t>> total_times;
  total_times.reserve(children_.size());
  for (int i = 0; i < children_.size(); ++i) {
    total_times.emplace_back(children_[i].first->total_time_counter()->value(), i);
  }
  // Order by descending total time.
  sort(total_times.begin(), total_times.end(),
      [](const pair<int64_t, int64_t>& p1, const pair<int64_t, int64_t>& p2) {
        return p1.first > p2.first;
      });
  ChildVector new_children;
  new_children.reserve(total_times.size());
  for (const auto& p : total_times) new_children.emplace_back(children_[p.second]);
  children_ = move(new_children);
}

void RuntimeProfileBase::AddInfoString(const string& key, const string& value) {
  return AddInfoStringInternal(key, value, false);