advantages and disadvantages of dialysis

Advantages and disadvantages of Linux device driver dynamic kernel insertion and direct integration into the kernel analysis Introduction: The company made a Linux-based Ethernet interface board, which is currently maintained by me, the main CPU of this board uses PowerPC, run the Linux system and add two external DPRAM modules. DPRAM uses the character device driver...

When I first started learning the PHP language, I saw the thinkphp framework and documentation on the Internet. The development manuals are all very detailed. What are the advantages and disadvantages of this PHP framework compared with other frameworks? How should I choose from this framework for beginners? When I first started learning the PHP language, I saw the thinkphp framework and documentation on th

[Advantages and disadvantages of clustering algorithm]k-means and its improvement"Turn": http://blog.csdn.net/u010536377/article/details/50884416A brief review of K-means clusterThe first clustering method that everyone touches, nine to ten, is K-means clustering. The algorithm is easy to understand and easy to implement. In fact, almost all machine learning and data mining algorithms have their

virtual server)The DR mode is to send the request to the real server by overwriting the destination MAC address of the request message and the server sends the response message directly to the client. Principle Details:The The default gateway for the 4, Vs/fullnatCompared to Nat LAN, Fullnat is not so limited, it is limited in the intranet. It is more convenient for operation and maintenance.5, the advantages and

I remember when I first contacted the IFRAME frame, to it is not very understanding, feel the usefulness is not small, however, recently in the site with a micro-blog live control when encountered it, but also have to take the perspective of SEO to consider it, after analysis, I think the ifame framework has some advantages and disadvantages. first we need to know what is the IFRAME framework? If we use t

Advantages and disadvantages of viewsIn the program design, you must understand the pros and cons of the view, so as to avoid weaknesses, the view has some of the following advantages:Simplicity. Views not only simplify the user's understanding of the data, they can also simplify their operations. Those queries that are used frequently can be defined as views, so that users do not have to specify all the co

. Advantages and disadvantages of indexesIn fact, through the previous introduction, the advantages and disadvantages of the index is clear.First, the advantages:1) greatly accelerate the retrieval speed of data, which is the main reason for creating indexes2) accelerates th

database (usually the implementation of SQL or stored procedures) to achieve persistent data, in order to meet the needs of the actual project. 2. Advantages and Disadvantages Advantages: 2.1 The interfaces and operations of the C/S architecture are rich.2.2 security performance can be easily guaranteed, and it is not difficult to implement multi-layer authentic

Inner join/left Join JOIN Join multiple tables SQL Execution Plan/view the specific execution process of SQL statements, working principle Advantages and Disadvantages of SQL usage View 10:56:43 | category: SQL | Tag: | large or small subscription sizeThe advantages of using views in database development include: 1. You can access the subset of columns in the ta

to consider JPA alternativesThe version of Java that you use determines whether you can actually apply JPA. JPA is part of the EJB 3.0 specification, which is part of the Java EE 5 version. If you have not updated to Java EE 5, you cannot use JPA.Your application requires services that JPA cannot provide, such as those provided by the EJB container, in which case you rely more on EJBS.Before concluding the discussion of this framework, let's list some of the

Some time ago, although a company's project was maintained a few years ago, it was not a long history, but it was still a few years ago. The three-tier architecture, coupled with the old architecture of stored procedures, was adopted, this architecture is no problem. Most systems do this. However, due to the misuse of the storage process of this system, it is difficult to maintain it in the future, any adjustments involving the database must be made to the stored procedures, Entity classes, SQL

: This article mainly introduces the advantages and disadvantages of Apache and Nginx. For more information about PHP tutorials, see. Http://blog.csdn.net/xifeijian/article/details/17385741 1. Advantages of nginx over apache:Lightweight and web services, which consume less memory and resources than apacheAnti-concurrency: nginx processes requests asynchronously

Advantages and disadvantages of indexes Why do you create an index? This is because creating an index can greatly improve the performance of the system. First, by creating a unique index, you can guarantee the uniqueness of each row of data in a database table. Second, it can greatly speed up the retrieval of data, which is the main reason for creating indexes. Thirdly, the connection between tables and ta

as those provided by the EJB container, in which case you rely more on EJBS.Before concluding the discussion of this framework, let's list some of the advantages and disadvantages of using JPA as a persistence framework.What are the advantages of JPA?JPA is standards-based. A growing number of providers are looking to provide JPA implementations in the near futu

Advantages and disadvantages of microservice ArchitectureAbstract: This article is from the official Nginx blog and is the first article in The microservice series. It mainly discusses the shortcomings of traditional monolithic applications and the advantages and challenges of the microservice architecture. As the author said, microservice architecture is more su

need to install, there is a Web browser can (2) BS architecture can be placed directly on the WAN, through a certain degree of access control to achieve the purpose of multi-client access, interactivity is strong.(3)The BS architecture does not need to upgrade multiple clients to upgrade the server. Cons: (1) on cross-browser, the BS architecture is not satisfactory. (2) It takes a lot of effort to achieve the degree of CS program.(3) The high cost of design for speed and security is the bigges

multi-client access, interactivity is strong.(3)The BS architecture does not need to upgrade multiple clients to upgrade the server. Cons: (1) on cross-browser, the BS architecture is not satisfactory. (2) It takes a lot of effort to achieve the degree of CS program.(3) The high cost of design for speed and security is the biggest problem in the BS architecture.(4) C and S interaction is a request-response pattern, which usually requires a refresh of the page, which is not a customer's pleasure

the tile. ,,, a frame all the rendering commands after the execution of vertex shader generation triangle, each tile will have a triangle list, this list contains the need to draw inside the tile all triangle. Then the GPU then executes each tile raster and per-fragment based on the Triangle list operationThe advantages of TBR are:There is no need to repeatedly access the frame buffer,depth buffer,stencil buffer when performing raster and per-fragmen

With the increasing demand for real-time Web applications, ServerPush technology has become the core of real-time application data streams in terms of chat, message reminders, especially social networks. This log attempts to explore various Push implementation methods suitable for PHP and their advantages and disadvantages. With the increasing demand for real-time Web applications, Server Push (Push) techno

This article describes the advantages and disadvantages of three Linux server monitoring technologies, including SNMP proxy (client), SSH, and private proxy (client) installation. The powerful functions and beautiful interfaces of the linux system make many enterprises use the linux system as the server. below are three types of introduction... This article describes the