java performance tuning and optimization

Article Title: LAMP system performance tuning to measure performance. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. LAMP performance measurementContinuously Measuring

Brief introductionWeb development often encounters performance issues, especially Web 2.0 applications. CSS code is the most direct "tool" to control the display style and effect of the page, but they are often overlooked by WEB development engineers when it comes to performance tuning, while the fact that nonstandard CSS can have a serious impact on the efficien

loss of responseC. Swap memory is used when physical memory is insufficient, and swap will bring disk I0 and CPU overheadD. Problems that can cause CPU bottlenecks: Frequent Perl,php,java programs generate dynamic web; database queries a large number of where clauses, order by/group by ordering ...E. Possible memory bottlenecks: High concurrent user access, system processes, Java memory leaks ...F. Possibl

http://blog.csdn.net/innost/article/details/9008691Authorized by the author, published Tieto a young cow of a "programmer" masterpiece.Introduction to the Android System Performance tuning toolIn the software development process, presumably many readers have encountered the system performance problem. Several major steps to solve the system

, typical case analysis, in-depth hands-on practice.Course content:L performance testing process and performance fault locating of a Java project, master the use of jprofilerL a python Project performs full-course performance tuning to master the use of the cprofile LibraryL

some summarization on the optimization of hive performance Note that this article 90% from this article: Hive performance optimization, very grateful to the author of the careful collation, some of which I have done supplements and additions, if there is anything wrong to write, please leave a message, thank you Prefa

overview of the various options with links to the relevant documentation. This article assumes that the reader has a basic understanding of the Nginx architecture and configuration concepts, so it is not a simple copy of an Nginx document, however, an overview of various options and links to relevant documents are provided. A good rule to follow when doing tuning is to change one setting at a time and if it does not result in a positive change in

options with links to the relevant documentation. This article assumes that the reader has a basic understanding of the nginx architecture and configuration concepts, so it is not a simple copy of an nginx document, however, an overview of various options and links to relevant documents are provided. A good rule to follow when doing tuning is to change one setting at a time and if it does not result in a positive change in

Original article: http://www.mastertheboss.com/jboss-performance/jboss-as-7-performance-tuning JBoss Application Server Tuning Although many architects and software engineers agree that the performance of about 70-80% of applications depends on the code of the application it

width to expect their batch processing tasks to be completed as soon as possible. They may not take into account the impact on the CPU, and the CPU may be fully occupied. The CPU running queue should not be twice as deep as your CPU count. If the CPU is frequently used up in a day, you must discard some settings. The first place to find the settings that need to be abandoned should be the concurrency management pool. Summary:Oracle routine maintenance and p