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The inside of List is implemented by array instead of linked List, and when the specified capacity is not given, the initial capacity is 0 Add // Adds the given object to the end of this list. The size of the list is // increased by one. If required, the capacity of the list is doubled // before adding the new element. // public void Add(T it ...

Recently, the business has grown rapidly, which is also a big challenge for our background. The performance bottleneck of the core business interface encountered this time is not caused by a single problem, but a combination of several problems: after we solve one, we launch it, and then we find another performance bottleneck. This is also my l ...

The packaging volume of the project is large, and the loading time of the first screen of the page is too long, resulting in a white screen. Therefore, the ultimate purpose of performance optimization is to improve the user experience. 1,BundleAnalyzer Function: display the packaging graphical information, open an html page to help you analyz ...

Performance optimization is a problem that every developer will encounter, especially in the environment where more and more attention is paid to experience and competition is becoming more and more fierce. For our developers, it is not enough to only complete iterations and do a good job in functions. The most important thing is to do a good j ...

Chapter 3 DOM programming High performance JavaScript - Nicholas C. Zakas Operating DOM with JS is expensive, which is usually the performance bottleneck of web applications. This chapter discusses three types of issues: Access and modify DOM elementsModifying the style of DOM elements will result in repaint and reflowHandling interact ...

For Android developers, it is often not enough to understand basic application development skills, because developers need to know a lot of performance optimization, whether in work or interview, which is very important to improve the application experience. For Android development, performance optimization mainly focuses on the following aspec ...

Last TVM's "hello world" basic process I Based on a basic case, this paper introduces the definition of calculation and the construction of schedule in TVM. This article follows the case in the previous article and continues to introduce the next key part, which is compilation. With the previously built schedule, you need to compile ...

This paper analyzes Android S(12) When ANR occurs in app or watchdog is triggered by System, the System wants to generate a trace file to record the call stack information of each thread and the status information of some processes / threads. This file is usually stored in the / data/anr directory and is not available to app developers. Howeve ...

  We programmers usually open many Terminal windows in parallel in the development process, especially in the process of program debugging. However, over time, you may forget what each Terminal is used for. Therefore, how to keep the interface fresh without reducing work efficiency has become the biggest pain point for many developers. ...

Background introduction The author received a request to display the patient's real-time physiological signals (ECG, etc.) on WPF in real time. The team developed the request and finished it soon (the effect picture of Unit test is as follows) However, it was later released to the product and found that the resource consumption is larger than ...