content: package com.alibaba.fastjson2.benchmark;
  
  import com.alibaba.fastjson2.JSON;
  import com.fasterxml.jackson.databind.ObjectMapper;
  import org.apache.commons.io.IOUtils;
  import org.openjdk.jmh.annotations.Benchmark;
  import org.openjdk.jmh.infra.Blackhole;
  
  import java.io.BufferedInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.HashMap;
  import java.util.zip.ZipInputStream;
  
  public class LargeFile2MTest {
      static String str;
      static ObjectMapper mapper = new ObjectMapper();
  
      static final int COUNT = 100;
  
      static {
          try (
                  InputStream fis = LargeFile2MTest.class.getClassLoader().getResourceAsStream("data/large-file-2m.json.zip");
                  BufferedInputStream bis = new BufferedInputStream(fis);
                  ZipInputStream zipIn = new ZipInputStream(bis)
          ) {
              zipIn.getNextEntry();
              str = IOUtils.toString(zipIn, "UTF-8");
              zipIn.closeEntry();
          } catch (IOException ex) {
              ex.printStackTrace();
          }
      }
  
      @Benchmark
      public void fastjson1(Blackhole bh) {
          bh.consume(com.alibaba.fastjson.JSON.parseObject(str));
      }
  
      @Benchmark
      public void fastjson2(Blackhole bh) {
          bh.consume(JSON.parseObject(str));
      }
  
      @Benchmark
      public void jackson(Blackhole bh) throws Exception {
          bh.consume(mapper.readValue(str, HashMap.class));
      }
  
      public void perfTest(Runnable task) {
          long start = System.currentTimeMillis();
          for (int i = 0; i < COUNT; ++i) {
              task.run();
          }
          long millis = System.currentTimeMillis() - start;
          System.out.println("millis : " + millis);
          // zulu17.32.13 : 1299 1136
          // zulu11.52.13 : 1187 1145
          // zulu8.58.0.13 : 1154
      }
  
      public void fastjson1_perf_test() {
          perfTest(() -> com.alibaba.fastjson.JSON.parseObject(str));
      }
  
      public void fastjson2_perf_test() {
          perfTest(() -> JSON.parseObject(str));
      }
  
      public void jackson_perf_test() throws Exception {
          perfTest(() -> {
              try {
                  mapper.readValue(str, HashMap.class);
              } catch (IOException e) {
                  e.printStackTrace();
              }
          });
      }
  
      public static void main(String[] args) throws Exception {
          new LargeFile2MTest().fastjson2_perf_test();
  //        new LargeFile2MTest().fastjson1_perf_test();
  //        new LargeFile2MTest().jackson_perf_test();
  //        Options options = new OptionsBuilder()
  //                .include(LargeFile2MTest.class.getName())
  //                .mode(Mode.Throughput)
  //                .timeUnit(TimeUnit.MILLISECONDS)
  //                .forks(1)
  //                .build();
  //        new Runner(options).run();
      }
  }
  