csi pool

First, the use of nginx memory poolNginx uses a memory pool to manage memory. That is to open up a memory pool space, and then get the memory from the memory pool, avoid frequent calls to malloc/free operations. malloc is only called if there is not enough memory pool spaceAllocates a new block of memory and joins it i

Http://www.cnblogs.com/bangerlee/archive/2011/08/31/2161421.html Introduction C/C ++ memory management is a headache for almost every programmer. allocate enough memory, track the memory allocation, and release the memory when it is not needed-this task is quite complicated. The direct use of the system to call malloc/free and new/delete for memory allocation and release has the following drawbacks: When calling malloc/new, the system needs to find an idle memory in the memory idle block table

Most ADO. NET data providers use connection pools to Improve the Performance of applications built around Microsoft's disconnected. net structure. The application first opens a connection (or obtains a connection handle from the connection pool), then runs one or more queries, processes the row set, and finally releases the connection back to the connection pool. Without a connection

Thread class:1 classRunthread implements runnable{2 3 intCounter =0;4 @Override5 PublicSynchronizedvoidrun () {6 7 Try {8Thread.Sleep ( -);9}Catch(interruptedexception e) {Ten e.printstacktrace (); One } ASystem. out. println (Thread.CurrentThread (). GetName () +"Count:"+counter++); - } - the}Execute function:1 Public Static voidMain (string[] args) {2 3Threadpoolexecutor executor =NewThreadpoolexecutor (5,Ten, $, Timeunit.milliseconds,4 Ne

Currently, the connection pool of JDBC2 is only an interface and is not actually implemented. JDBC3 is under development, It is reported that the connection pool is supported, .......... JDBC3 uses the JNDI technology, and the configuration of the connection pool can upset a master. Currently, the connection pool impl

Java self-made thread pool and java self-made thread Personal blog: www.zarezone.cn Java self-made Thread Pool 1. Introduction 1. Thread Pool . Thread Pool Function 1. 3. Advantages of Thread Pool 1.4.JDK built-in Thread

1. IntroductionThe rational use of the thread pool can bring three benefits.First: reduce resource consumption. reduce the consumption caused by thread creation and destruction by reusing the threads that have been created.Second: improve response speed. when a task arrives, the task can be executed immediately without waiting for the thread to be created.Third: improve the manageability of threads. Threads are scarce resources that, if created indefi

Tag: CTI while problem 16px code card unit returns insert data1. IntroductionThe rational use of the thread pool can bring three Benefits.First: Reduce Resource Consumption. reduce the consumption caused by thread creation and destruction by reusing the threads that have been created.Second: Improve Response Speed. when a task arrives, the task can be executed immediately without waiting for the thread to be Created.Third: Improve the manageability of

should be restricted as much as possible. If more threads are created, the overhead of the operating system is increased, and everything runs slowly. In addition, each thread needs resources (the memory occupied by the kernel object and two stacks), so each thread consumes memory. The thread has another purpose: scalability. When a computer has multiple CPUs, Windows can schedule multiple threads simultaneously: Each CPU runs one thread. Introduction to CLR Thread

Net of various pools in. NET, there are four commonly used pools: string detention pool, thread pool, application pool, database connection pool. String Detention PoolStrings in. NET are immutable objects, and modifying the value of a string variable results in a new object. To reduce performance consumption and reduce

I looked at the thread pool yesterday. Although I have a good understanding of the principle, I feel very stupid to implement it. The task is not directly implemented as a pool here, so dynamic allocation is not required. The following is the code and test: #include #include #include #include #include #include #define MAX_THREAD_NUM 100#define MAX_WORK_NUM 1000struct gwork{void (*func)(void *arg);void

Basic working principle of connection pool 1. Basic concepts and principles As can be seen from the above analysis, the root of the problem lies in the inefficient management of the database connection resources. We know that for shared resources, there is a well-known design pattern: resource pools (Resource pool). The pattern is to solve the problem of the frequent distribution of resources and the releas

Thread Pool and work queue-Linux general technology-Linux programming and kernel information. The following is a detailed description. One of the most common problems posted on our multi-threaded Java programming forum is "How to Create a thread pool ?". Thread Pool and working queue problems may occur in almost every server application. In this article, Brian Go

CLR thread pool released on: 1/14/2005 | Updated on: 1/14/2005 Jeffrey Richter Microsoft has been trying to improve its platform and ApplicationProgramPerformance. Many years ago, Microsoft looked at how application developers use threads to see what they can do to improve their utility. This study has an important discovery: developers often create new threads to execute a task. When the task is completed, the thread terminates. Thi

Sun has made a lot of extensions to Java Thread class libraries in Java 5. Among them, the thread pool is one of the new features of Java 5. Besides the thread pool, there are also a lot of multithreading-related content, it brings great convenience to multi-threaded programming. To write efficient, stable, and reliable multi-threaded programs, it is particularly important to add content to the thread secti

Introduction C/C ++ memory management is a headache for almost every programmer. allocate enough memory, track the memory allocation, and release the memory when it is not needed-this task is quite complicated. The direct use of the system to call malloc/free and new/delete for memory allocation and release has the following drawbacks: When calling malloc/new, the system needs to find an idle memory in the memory idle block table based on "first match", "Optimal Match", or other algorithms, an

I. The question arisesNetwork requests usually have two scenarios: the first, the request is not very frequent, and each connection will remain for a considerable period of time to read data or write data, and finally disconnected, such as file download, network streaming media. The second is frequent requests, but the connection is disconnected after a small amount of data is read/written.Given the concurrency of the service, if each request comes in after the service starts a thread for it, th

You can also provide several connection string modifiers to control connection pool behavior. For more information, see "using connection string keywords to control connection pool" in this topic. Pool creation and allocation When the connection is opened, it will be based on a precise matchAlgorithmTo create a connection po