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你如何在Java中编写(并运行)正确的微基准测试？

我在这里寻找代码示例和注释,说明要考虑的各种事项.

示例:基准测量应该测量时间/迭代或迭代/时间,为什么？

相关:秒表基准可以接受吗？

我有一个User对象列表,定义如下:

public class User {
    private String userId; // Unique identifier
    private String name;
    private String surname;
    private String otherPersonalInfo;
    private int versionNumber;
    }
    public User(String userId, String name, String surname, String otherPersonalInfo, int version) {
      super();
      this.name = name;
      this.surname = surname;
      this.otherPersonalInfo = otherPersonalInfo;
      this.version = version;
    }
}

示例列表:

List<User> users = Arrays.asList(
  new User("JOHNSMITH", "John", "Smith", "Some info",     1),
  new User("JOHNSMITH", "John", "Smith", "Updated info",  2),
  new User("JOHNSMITH", "John", "Smith", "Latest info",   3),
  new User("BOBDOE",    "Bob", …