Method PrintStats

src/leveldb/benchmarks/db_bench.cc:885–891

  void Compact(ThreadState* thread) { db_->CompactRange(nullptr, nullptr); }

  void PrintStats(const char* key) {
    std::string stats;
    if (!db_->GetProperty(key, &stats)) {
      stats = "(failed)";
    }
    fprintf(stdout, "\n%s\n", stats.c_str());
  }

  static void WriteToFile(void* arg, const char* buf, int n) {
    reinterpret_cast<WritableFile*>(arg)->Append(Slice(buf, n));