asynchronous I/O

简明释义

1. 异步胔入—胔出; 2. 异步胔入/胔出;

英英释义

例句

1.With asynchronous I/O 异步输入输出, applications can continue processing while waiting for file operations to complete.

使用异步输入输出 asynchronous I/O，应用程序可以在等待文件操作完成的同时继续处理。

2.The use of asynchronous I/O 异步输入输出 in database operations can significantly improve performance by allowing other tasks to run while waiting for data.

在数据库操作中使用异步输入输出 asynchronous I/O 可以显著提高性能，因为它允许在等待数据时运行其他任务。

3.Implementing asynchronous I/O 异步输入输出 in a network application reduces latency and improves user experience.

在网络应用中实现异步输入输出 asynchronous I/O 可以降低延迟并改善用户体验。

4.Node.js uses asynchronous I/O 异步输入输出 to handle numerous connections efficiently.

Node.js使用异步输入输出 asynchronous I/O 高效处理大量连接。

5.In modern web servers, asynchronous I/O 异步输入输出 allows handling multiple requests simultaneously without blocking.

在现代网络服务器中，异步输入输出 asynchronous I/O 允许同时处理多个请求而不阻塞。

作文

In the world of computing, efficiency and speed are paramount. One of the key concepts that has emerged to enhance performance in various applications is asynchronous I/O. This term refers to a method of input/output processing that allows other processing to continue before the transmission of data has finished. To grasp the significance of asynchronous I/O, it is essential to understand the difference between synchronous and asynchronous operations.Synchronous I/O operations block the execution of a program until the operation is complete. For example, when a program reads data from a disk, it halts all other processes until the read operation is finished. This can lead to inefficiencies, especially in applications that require high performance or need to handle multiple tasks simultaneously. In contrast, asynchronous I/O allows a program to initiate an I/O operation and then proceed with other tasks while waiting for the operation to complete. This non-blocking behavior can significantly improve the responsiveness and throughput of applications.Consider a web server handling multiple requests from users. If it uses synchronous I/O, each request would be processed one at a time, leading to delays as users wait for their requests to be fulfilled. However, with asynchronous I/O, the server can start processing a request, move on to the next one, and return to the first request once the I/O operation is complete. This capability allows the server to manage many connections concurrently, resulting in faster response times and better resource utilization.The implementation of asynchronous I/O can be complex, as it often requires the use of callbacks, promises, or event-driven programming models. Developers must design their applications to handle the eventual completion of I/O operations, which may occur at unpredictable times. Despite these challenges, the benefits of asynchronous I/O make it a valuable technique in modern software development.In addition to improving performance, asynchronous I/O can also enhance user experience. For instance, in a graphical user interface (GUI), an application can remain responsive to user inputs while performing background tasks such as file downloads or database queries. This is crucial for maintaining a smooth and interactive experience, as users do not want to be left waiting for an operation to finish before they can continue using the application.Moreover, asynchronous I/O is increasingly relevant in the context of cloud computing and microservices architectures. As applications become more distributed, the ability to perform I/O operations asynchronously can help reduce latency and improve scalability. By allowing services to communicate and process data independently, developers can build systems that are more resilient and capable of handling varying loads.In conclusion, understanding asynchronous I/O is essential for anyone involved in software development today. Its ability to enhance performance, improve responsiveness, and facilitate complex interactions makes it a critical component of modern programming. As technology continues to evolve, mastering asynchronous I/O will undoubtedly become even more important for creating efficient and effective applications. The future of computing lies in our ability to harness the power of non-blocking operations, and asynchronous I/O stands at the forefront of this evolution.

在计算机世界中，效率和速度至关重要。为了提高各种应用程序的性能，出现了一个关键概念，即异步I/O。这个术语指的是一种输入/输出处理方法，它允许其他处理在数据传输完成之前继续进行。要理解异步I/O的重要性，必须了解同步操作和异步操作之间的区别。同步I/O操作会阻止程序的执行，直到操作完成。例如，当程序从磁盘读取数据时，它会暂停所有其他进程，直到读取操作完成。这可能导致低效，尤其是在需要高性能或需要同时处理多个任务的应用程序中。相比之下，异步I/O允许程序启动I/O操作，然后在等待操作完成的同时继续进行其他任务。这种非阻塞行为可以显著提高应用程序的响应能力和吞吐量。考虑一个处理来自用户的多个请求的Web服务器。如果它使用同步I/O，则每个请求将一次处理一个，这会导致延迟，因为用户在请求完成之前等待。然而，使用异步I/O，服务器可以开始处理一个请求，转向下一个请求，并在I/O操作完成后返回第一个请求。这种能力使服务器能够并发管理许多连接，从而实现更快的响应时间和更好的资源利用。实现异步I/O可能很复杂，因为它通常需要使用回调、Promise或事件驱动编程模型。开发人员必须设计他们的应用程序以处理I/O操作最终完成的情况，这可能发生在不可预测的时间。尽管存在这些挑战，异步I/O的好处使其成为现代软件开发中的一种有价值的技术。除了提高性能外，异步I/O还可以增强用户体验。例如，在图形用户界面（GUI）中，应用程序可以在执行后台任务（如文件下载或数据库查询）的同时保持对用户输入的响应。这对于保持平滑和互动的体验至关重要，因为用户不希望在操作完成之前被迫等待，才能继续使用应用程序。此外，异步I/O在云计算和微服务架构的背景下变得越来越相关。随着应用程序变得更加分布式，异步执行I/O操作的能力可以帮助减少延迟并提高可扩展性。通过允许服务独立地进行通信和处理数据，开发人员可以构建更具弹性且能够处理不同负载的系统。总之，理解异步I/O对于今天参与软件开发的任何人都是至关重要的。它增强性能、改善响应能力和促进复杂交互的能力，使其成为现代编程的关键组成部分。随着技术的不断发展，掌握异步I/O无疑将变得更加重要，以创建高效和有效的应用程序。计算的未来在于我们利用非阻塞操作的能力，而异步I/O正处于这一演变的最前沿。