java application performance

Overview The key to creating a pleasant user experience is developing responsive applications. With the help of the components provided by the android * software development kit (SDK), the performance problem debugging task becomes easier due to the ease of use of performance analysis tools. In this article, we will understand different tools that can solve faults and debug

architecture more complex, and when the next developer intends to understand the status quo of the system, the situation will be worse.A large, poorly designed system often lacks a holistic design, written in a single line of code and a subsystem. However, in many cases, simplifying and refactoring the architecture can lead to better performance and is almost always easier to understand.Therefore, when evaluating whether it is really necessary to joi

Tag:auto attack simplify legend Architecture hash Table mon get data Recently read the "Large Web site technology Architecture ———— Core Principles and Case analysis", summarizes the site application server performance optimization of the section.Performance optimizations for application servers can generally be started in four directions: Using the

inspection program that can show the bottleneck of the code in general.42, Mod_zip can be used as Apache module, to compress your data instantly, and to reduce the data transfer volume by 80%.43, in the case can be replaced with file_get_contents file, fopen, feof, Fgets and other series of methods, as far as possible with the file_get_contents, because his efficiency is much higher! But pay attention to file_get_ Contents PHP version problem when opening a URL file;44, as far as possible to fi

services, it does not affect other application pools. Before using the application pool, you should determine the number of application pools you need. Many may think that since different application pools are completely isolated, I only need to create an application pool f

About 5 things you don't know about Java performance Monitoring-part 2nd: Java process monitoring with JDK built-in analyzer Fully functional built-in analyzers, such as Jconsole and VISUALVM, are sometimes more expensive than their performance costs-especially in systems running on production software. So, in the 2nd

the system can not be stable operation for a long time. These problems will seriously affect the user trading experience, and bring direct or indirect significant economic losses to the enterprise. IBM WebSphere Commerce, based on WebSphere application Server, is a very sophisticated e-business application solution for Business (business-to-business) or Enterprise to Customer (business) for enterprise use

While Android smartphones and tablets are running faster than a day, developers must keep in mind that the apps they develop are still operating in a resource-intensive environment that relies heavily on batteries and processors whose performance is unmatched by the latest desktop or laptop computers. Here are some ways to help your application "slim down" or "Android to boost development

Java performance tips and java tips Local decision. The overall performance of an application depends on the performance of each component. Below are some Java programming skills that h

uses only a single application pool, IIS 6 working in worker process isolation mode can create multiple application pools, which are completely isolated from each other, and no application pool will be affected by the time the service is stopped. Before using the application pool, you should determine the number of

Through the popularization of the three articles, I believe everyone should have a basic understanding of IIS. Starting from this article, we will start to discuss some practical topics about IIS: how to configure IIS to ensure its performance as high as possible. Series of articles:Configuration of high-availability IIS server for building high-performance. NET Applications-Article 1: required knowledge of

Spark Applications-peilong Li 8. Avoid Cartesian operation The Rdd.cartesian operation is time-consuming, especially when the dataset is large, the order of magnitude of the Cartesian is square-level, both time-consuming and space consuming. >>> Rdd = Sc.parallelize ([1, 2]) >>> sorted (Rdd.cartesian (RDD). Collect ()) [(1, 1), (1, 2), (2 , 1), (2, 2)] 9. Avoid shuffle when possible The shuffle in spark defaults to writing the last stage data to disk, and then the next stage reads the data f

This article will be the second article in the JVM Performance Tuning series (first: Portal), and the Java compiler will be the focus of this article. In this paper, the author (Eva Andreasson) first introduces different kinds of compilers, and compares the performance of client-side compilation, server-end compiler and multi-layer compilation. Then, at the end

Top 10 methods to improve Asp. Net application performance (translation) and top 10 asp.net This article has translated the Top Ten Methods for Improving Asp. Net applications. I think about each of them carefully and will talk about it with my project here.Article 1: Return multiple result setsBecause all the SQL statements used to access the database in my project are implemented by calling the stored pro

, for a single user, the average processing times for each of the requests. Six, test Nginx performance The fifth step tests the performance of Apache and now we test Nginx performance. First configure the Nginx virtual host, as follows: Cat/usr/local/nginx/conf/nginx.conf|grep-v ^#|grep-v ^$ After the virtual host configuration is complete, we now access the vi

ObjectiveThe promotion of WEB 2.0 applications brings a whole new experience to the user, while also giving developers more attention to client performance issues. Recently, one of the founders of Dynatrace , a veteran Web Performance diagnostic expert and well-known tool , Andreas grabner According to their work experience, summed up the Web 2.0 application Cli

js| Performance I. Overview In Web applications, the generation of some reports may take a long time to compute, and some sites provide weather information that requires access to remote servers for SOAP calls to get temperature information. All of these are examples of complex information. Adding too much complex information to a Web page can cause the Web server, the database server, to overload. JSP code block buffering gives developers the freedom