high performance java persistence

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High performance I/O design patterns reactor and Proactor

the underlying classes of concurrency (threads, mutexes, etc.), and at a high level of abstraction, two different sets of classes--ace reactor and ACE Proactor implementations. However, although both are platform-independent, the interfaces provided vary.ACE Proactor has a better performance on the Windows platform because Windows provides efficient asynchronous API support in the operating system (see Htt

Reactor and proactor modes designed for high-performance Io

In the high-performance I/O design, there are two well-known modes: reactor and proactor. The reactor mode is used to synchronize I/O, while the proactor is used for asynchronous I/O operations. Before comparing these two modes, we should first understand several concepts, what is blocking and non-blocking, and what is synchronous and asynchronous, synchronization and Asynchronization are for the interacti

Netty-based lightweight high-performance distributed RPC service framework forest & lt; next & gt;, nettyforest

Netty-based lightweight high-performance distributed RPC service framework forest Netty-based lightweight high-performance distributed RPC service framework forest The article has briefly introduced the Quick Start of forest. This article aims to introduce the forest user guide.Basic Introduction Forest is a

7 High-performance JavaScript code highlighting plugins

This article by the code Farm-small peak original, reproduced please see the text at the end of the reprint requirements, welcome to participate in our paid contribution program!For those who like to write technical blog, must be very familiar with the code highlighting components. An excellent JavaScript code highlighting plugin will help you render any programming language, including coloring of some keywords, indentation of each line of code, and so on. Today we are going to share some

SSDB is a high-performance NoSQL database that supports rich data structures to replace Redis.

SSDBA high-performance NoSQL database that supports rich data structures to replace Redis.Characteristics 100 times times the capacity of Redis instead of Redis database LevelDB network support, using C + + development Redis API compatible, support for Redis clients Suitable for storing collection data, such as list, hash, zset ... The languages supported by the client API include:

Memcached Video tutorial Big Data high performance clustered NoSQL installation command use, memcachednosql_php tutorial

Memcached Video tutorial Big Data high performance clustered NoSQL installation command used, Memcachednosql Video materials are checked one by one, clear high quality, and contains a variety of documents, software installation packages and source code! Perpetual FREE Updates! Technical teams are permanently free to answer technical questions: Hadoop, Redis, Mem

_javascript techniques for implementing JavaScript high performance data storage

. Note : Once the Catch child statement has been executed, the scope chain returns to its previous state. 7. Closure-triggered performance problems Closures are one of the most powerful features of JavaScript. Because closures contain references that perform the same objects as the scope chain of the environment, the active object of the function is not destroyed, resulting in more memory overhead. focus on

How to develop a high quality Java EE system for Beginners

database JDBC-driven configuration in your Java application system, Then your Java EE application system has a database concept color, as a mature need to promote the Java application system, not recommended and specific database coupling, of course, how to ensure that the performance of

[Ext] 7 High-performance JavaScript code highlighting plugin

For those who like to write technical blog, must be very familiar with the code highlighting components. An excellent JavaScript code highlighting plugin will help you render any programming language, including coloring of some keywords, indentation of each line of code, and so on. Today we are going to share some high-performance JavaScript code highlighting plugins that will be very effective in helping y

Research on the configuration and deployment of high-performance WEB server nginx (1) nginx introduction and getting started example

Research on the configuration and deployment of high-performance WEB server nginx (1) nginx introduction and getting started example Author: poechant Blog: blog.csdn.net/poechant Email: zhongchao. USTC # gmail.com (#-> @) Date: August 29Th, 2011 Update: February 26Th>, 2012. Overview Starting from this blog, we will show readers the strength of nginx. What is nginx used? I believe many of my friends h

7 High-performance JavaScript code highlighting plugins

For those who like to write technical blog, must be very familiar with the code highlighting components. An excellent JavaScript code highlighting plugin will help you render any programming language, including coloring of some keywords, indentation of each line of code, and so on. Today we are going to share some high-performance JavaScript code highlighting plugins that will be very effective in helping y

Create a high-performance text genie

In game development, the most performance-consuming is to display text, because the text must be generated temporarily in the memory bitmap, and then the bitmap is bound to the OpenGL texture and rendered, the author of andengine estimates the importance of caching in Java Development. He carefully planned the text Genie and divided it into immutable text genie) and the variable Text sprite (changeabletext)

V8 is a high-performance JavaScript engine for Google Open source

V8 is a high-performance JavaScript engine for Google Open source, implemented in C + + and used in Google's open source browser, Chrome.    Why is V8 very fast, and what kind of solution makes V8 reach this speed? It is an interesting thing to find the secret.    Object-oriented, design patterns and performance    Some C + + developers have some strange ideas. T

High-performance MySQL reading notes-Optimizing server settings

rejected at least once.2.thread_cahce_size: Observe the threads_connected state variable and find its maximum and minimum values in the general case. Can be set to a fluctuation range of double-size. But it doesn't have to be set very large, because it's not really useful to keep a lot of idle threads waiting to connect.You can also observe changes in the threads_created state over time, and if the value is large or growing, this may tell you that you need to make the thread_cahce_size variable

How do I write high-performance SQL statements?

):SELECT DISTINCT dept_no,dept_name from DEPT D, EMP EWHERE d.dept_no = E.dept_no(efficient):Select Dept_no,dept_name from DEPT D WHERE EXISTS (select ' X 'From EMP E WHERE e.dept_no = d.dept_no);SQL statements are capitalized, because Oracle always parses the SQL statements first, converting lowercase letters to uppercase and then executing(20) Use the connector "+" connection string sparingly in Java code!(21) Avoid using not on indexed columns typi

Performance Comparison of Different Java compression algorithms and java Performance Comparison

Performance Comparison of Different Java compression algorithms and java Performance Comparison This article will compare the performance of several common compression algorithms. The results show that some algorithms can still work normally under extremely demanding CPU res

"Writing high-performance JavaScript"

English Links: Writing Fast, Memory-efficient JavaScriptMany JavaScript engines, such as Google's V8Engines (used by chrome and node) are designed for large JavaScript applications that need to be executed quickly. If you are a developer and care about memory usage and page performance, you should understand how the JavaScript engine works in the user's browser. Whether it's V8,spidermonkey (Firefox) Carakan (Opera), Chakra (IE) or other engines, doin

Learn node with me High performance Web server development

Learn node with me High performance Web server developmentCourse Study Address: http://www.xuetuwuyou.com/course/235The course out of self-study, worry-free network: http://www.xuetuwuyou.comThe course mainly teaches the current popular node development, including but not limited to: node basic Environment Development Configuration, node module modules mechanism, using express to quickly build Node Web serv

Netty Combat high performance distributed RPC video

Course Catalogue01.Netty implements a high performance distributed RPC Architecture introduction. avi02. The entire architecture diagram of the Distributed RPC architecture. avi03. Write Java server using Netty. avi04.zookeeper installation and operation. avi05. The server is registered on the zookeeper. avi06.netty client writing. avi07.netty Long connection Hea

Wild Talk series of high performance customizable distributed generator

Liu Bing, nickname, open source technology enthusiasts, high performance Redis middleware Nredis-proxy author, the current research direction for Java Middleware, micro-services and other technologies. first, what is the distributed generator We should be thankful for this time when we are talking about the distributed generator. As the internet becomes more and

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