Author | Luo Guangming In 2022, several interesting things happened with microservices. First, Elon Musk, who has been officially in charge of Twitter for a short time, expressed his opinion on Twitter’s development team “criticismHe said he was sorry for how slow Twitter was in many countries. It was so slow because the app needed […]
Low-code, WebAssembly, applets, cross-end, PWA, Flutter, Dart, RN, Vue, Angular… These technologies are becoming more and more popular. The development of IT technology is changing rapidly, especially in the front-end field. The choice of frameworks, libraries, and tools is getting wider and wider. The popular framework this year may be replaced by another next year.
Global Open-source Technology Conference, GOTC 2023 Jointly sponsored by Open Atom Open Source Foundation, Linux Foundation Asia Pacific, Shanghai Pudong Software Park and Open Source China, It will be held in Shanghai Zhangjiang Science Hall from May 27th to 28th.Currently, the General Assembly Registration channel is open: https://www.bagevent.com/event/8387611 The 2-day open source industry event will
Author | The stone that floats like a dream guide With the wide application of real-time computing technology in big data, the timeliness of data has been greatly improved, but in actual application scenarios, in addition to timeliness, it also faces higher technical requirements. This paper combines the exploration and practice of real-time computing water
It is said that open source is difficult to make money, how difficult is it? Jointly released by News Fast Delivery and Gitee “2022 China Open Source Developers Report” It shows that 53.25% of developers have never received income from participating in open source outside of work; another 28.79% of developers have income less than
Author: JD Technology Feng Jianhua With the continuous iterative update of the business, the size of the App is also increasing rapidly. From 2019 to 2022, it once exceeded 117M. During this period, we also made some optimizations, as shown in the red part of Figure 1. However, we are facing new challenges while optimizing.
Time-Frequency Transformation spectrum rearrangement cepstral coefficient Deconvolution spectral features Music Information Retrieval audioFlux is a library implemented in Python and C. It provides systematic, comprehensive, and multi-dimensional feature extraction and combination in the audio field. It combines various deep learning network models to conduct business research and development in the audio field. The following is
Author: JD Logistics Wang Yukun Software test design is an important testing activity in the testing process. How to design test cases can improve the efficiency and quality of our testing. A brief explanation is given from the following aspects. 1 Principles of test case design The basic principles of test case design include: effectiveness,
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Rate limiter is a very basic network packet processing function, which is widely used in various network element devices and plays an important role in traffic scheduling, network security and other fields. Common rate limiters are implemented based on token buckets. Although the principle of token buckets is well known, we have also found some
Author: JD Retail Zhang Luyao At present, there are many functions in the system that require delayed processing: payment timeout cancellation, queuing timeout, delayed sending of SMS, WeChat and other reminders, token refresh, membership card expiration, etc. Through delayed processing, system resources are greatly saved, and there is no need to poll the database for
Summary:In order to evaluate the generalization ability of the model, that is, to judge whether the model is good or bad, we need to use a certain index to measure it. With the evaluation index, we can compare the pros and cons of different models, and use this index to further optimize the model. This
On March 20, 2023, China’s leading open source software company FIT2CLOUD officially released the 1Panel open source project. 1Panel (https://github.com/1Panel-dev) is a modern, open source Linux server operation and maintenance management panel. 1Panel’s core features and benefits include: ■ Quick website building:Deeply integrated with WordPress and Halo, domain name binding, SSL certificate configuration and other
There are many such articles about the differences and principles of Java BIO, NIO, and AIO, but they are mainly discussed between BIO and NIO, while there are very few articles about AIO, and many of them are just introductions. Take a look at the concepts and code examples. When learning about AIO, the following
Author: JD Retail Zhang Qiang I write this article in the hope of summarizing some of my experiences that I think are very valuable, which can help new colleagues who have just done testing, or old colleagues with rich testing experience to share. I hope that our lovely new colleagues, partners who are going to
