java application performance

Bytes. The criteria for evaluating system performance optimization include throughput, response time, and parallel capability. Design Database 1. Familiar with business systems Familiarity with the business system has a great impact on the performance of the entire DB2 database system. A designer who is unfamiliar with the business, despite having a wealth of database knowledge, it is also difficult to des

j2ee| Interactive | data | database | performance | maximize Overview: Most application performance management (APM) solutions only consider and analyze performance issues at one level of the Java application. This approach is not

Session, Application, and Cache Usage will affect the system performance. 1. Session If the application is not used, disable the session Status of the Page. ASP. NET enables the session status by default. You can set the EnableSessionState attribute in the @ Page command:Show row number copy code? The Enable attribute does not affect the Cache or

This article is reproduced from: wenku.baidu.comview4b1f67d97f1922791688e801.html when using SQLServer for system design, correct and rational design of databases, indexes, queries, selection of appropriate data types, and optimization of SQL statements can improve system performance. This article discusses how to optimize the application system performance. This

Enterprise Application performance Real-time measurement system, manufacturing enterprises are facing increasing pressure from the internal and to achieve and maintain their competitive edge of the external environment. The results show that quality, monitoring and control of the production process is critical. In this respect, performance metrics across differen

Continuation, A*,dijkstra, performance comparison of bidirectional BFS algorithm and application of A * algorithm Author: July March 10, 2011.Source: Http://blog.csdn.net/v_JULY_v-------------------------------------------------- Introduction:The shortest path algorithm a * algorithm ,Dijkstra algorithm ,BFS algorithm , has been described in this blog. Among them,Dijkstra algorithm , and then wrote an artic

instead of actually closing the connection. Once the connection is returned to the pool, it can be reused in the next Open call.Pool connections can be established only if the same connection is configured.ADO maintains multiple pools at the same time, one pool per configuration.The connection is divided into multiple pools by the connection string and the Windows identity (when using integrated security). The pool connection is also established based on whether the connection has been enlisted

absrtact: by discussing and studying the characteristics and principles of Oracle Server and Client/server, this paper expounds some principles and methods of improving and adjusting the performance of Oracle Application system. Key Words: Oracle; client/server; system whole zone; network I/O; rollback segment. Oracle database is widely used in all areas of society, especially in Client/server mode, but

This is a summary of our experience in running the Javaeye website for nearly half a year. There are very few people in the entire rails community who are running a large number of rails Web site experience to discuss this topic in detail. As for the domestic, the rails application all stays in the study and the attempt stage, the real investment business Operation's basic cannot find, therefore discusses this topic is too early, quite has cast pearls

Want to keep your project running at high performance? Here are some tips you can take to eliminate cache bottlenecks, as well as some other performance tuning recommendations.Most developers think that performance optimization is a complex topic that requires a lot of work experience and relevant knowledge theory. Well, it's not entirely wrong. Optimizing an

above, the viewstub is 400dip wide and 200dip long, so the size of Act_main.xml is also 400dip wide and long 200dip.Drawing on this idea of the official, we can not help but think that the interface shown by Viewstub is too monotonous. So we could use our own view instead of viewstub. As long as we guarantee that a loaded page is concise enough (for example, just a loading animation, or a warm cue screen, etc.), we don't even have to use the view's Findviewbyid () operation. Simply load a view

application. To run JConsole and Jtop, execute the following command:Jconsole-Pluginpath Java_home/demo/management/jtop/jtop.jarFigure 8 shows an example of JConsole, which selects the Jtop tab. The left column shows the names of all running threads. For each thread, its CPU usage and thread state are displayed. When the statistics change, the view is automatically refreshed. The Jtop plugin can be used to identify threads with high CPU usage.Figure

Many common Java performance problems originate from the idea of class design in the early stages of the design process, as early as many developers began to consider performance issues. in this series, Brian Goetz discusses common Java performance risks and how to avoid the

recently participated in, a compiled component times out when it calls the database. in this case, we use Profiler to identify the SQL statements and the order in which applications call them. Using this tool helps us find logical errors, so that we can successfully correct our applications. In the later stages of the development process, Profiler can help identify application bottlenecks during load/stress testing. You can also use it to monitor rou

Network traffic thin Body suggestion The response time of the browser-side users is affected by many factors, the main three aspects: Server-side content generation time, impacted by server-side hardware computing power and server application performance The time that data is transmitted over the network, affected by the network bandwidth and the size of the data transferred Client-side rendering time,

"), lists:foreach( fun({MFA, Per}) -> L = length(MFA), S = lists:duplicate(MaxACC - L + 2, $ ), io:format("~s~s~.2f%~n", [MFA, S, Per]) end, lists:reverse(lists:keysort(2, ACCs))); Err -> Err end.mfa_to_list({M, F, A}) -> atom_to_list(M) ++ ":" ++ atom_to_list(F) ++ "/" ++ integer_to_list(A);mfa_to_list(F) when is_atom(F) -> atom_to_list(F).find_max(List) -> find_max(List, 0).find_max([{V, _}|Tail], Acc) -> find_max(Tail, lists:max([leng

thrown. " , E ); } } } 2.3 key Handling Methods Below, I also recorded the user's operation exception information and response speed in key methods. For example, I must record the following information: (1) response speed during user registration, exceptions during registration, response speed during user logon, and exceptions during user logon; (2) under what conditions does the user attempt to download the free iopenworkssdk plug-in framework? (3) when trying to download the framew

Accelerate Java application development speed 2-accelerate project debugging startup speed and java application development In the previous article on improving the speed of Spring/Hibernate, we mainly used some techniques to increase the startup speed, or we could not do hot deployment or hot replacement of the class.

method of creating a large number of threads (in good cases, a buffer pool is used ). This technology can be seen in many applications that must support concurrent I/O streams, such as web servers, quote and auction applications. However, creating a Java thread requires considerable overhead. JDK 1.4 introduces a non-blocking I/O Library (Java. NiO ). If an application