furniture pipeline

(transactions)Redis's transaction is simple, and his primary purpose is to ensure that commands in a client-initiated transaction can be executed consecutively, without inserting other client commands.Look at the following example:@Testpublic void test2Trans() { Jedis jedis = new Jedis("localhost"); long start = System.currentTimeMillis(); Transaction tx = jedis.multi(); for (int i = 0; i We call the jedis.watch(…) method to monitor the key, and if the key value changes after the ca

Piping (pipe) Piping is one of the most basic IPC mechanisms by which the pipe function opens up a buffer (called a pipe) in the kernel for communication, so the pipe in the user program looks like an open file via Read (Filedes[0]), or write (filedes[1]);int pipe (int filedes[2]);parameters : The Filedes parameter is passed to the user program in two file descriptor tables. Filedes[0] pointing to the read end of the pipe, filedes[1] pointing to the pipeWrite Endreturn value : Successfully

Abstract: high-resolution radar image display is an important part of Radar Computer simulation. It has high requirements on image fidelity and real-time performance. The use of programmable rendering pipeline technology for radar display system simulation can effectively achieve the layered model of radar images, make full use of the parallel processing capabilities of cptj and GP [J, greatly reducing the computing complexity of CPU. It can generate

the advanced first-out mechanism, that is, the write pipeline process writes to the buffer head and reads the pipeline process to read the pipe tail. The command to establish the pipe is "Mknod filename p".DD allows us to copy data from one device to another device.Compress is a UNIX data compression tool.Before implementing Exp, we can first check the size of the resulting DMP file. The following steps ca

Address: http://blog.csdn.net/enlaihe/article/details/7598941 See a lot of the Assembly on the return of the program and the return of the processing address are very special, think about the original pipeline effect. So, decided to summarize learning under arm pipeline. The ARM7 processor uses a Class 3 pipeline to increase the speed of the processor instructi

1. What is a pipe?Pipelines are divided into nameless pipes and named Pipes, and no special instructions in this article refer to nameless pipes.The pipeline is one of the original UNIX IPC forms supported by Linux and has the following features:A. The pipeline is half-duplex, the data can only flow in one direction, when two sides need to communicate, need to set up two pipelines;B. Can only be used betwee

IIS 7.0 supports two pipe modes: One is the latest integrated pipeline mode provided by IIS 7.0, and the other is classic pipe mode, which is provided by previous versions of IIS. We can set the pipeline mode through the application pool, which is especially useful for IIS administrators because it allows one server to run only one mode, or two modes to run on a single server at the same time. There is a si

ARM Architecture and System Learning (II.)--level 3 pipelineTags: storage embedded assembler C2012-04-18 00:44 5414 People read Comments (4) favorite reports Classification:ARM7 (+)Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.See a lot of the Assembly on the return of the program and the return of the processing address are very special, think about the original pipeline effect. So, deci

Description An oil company plans to build a main oil pipeline from east to west. The pipeline needs to pass through an oil field with N wells. Each well must have an oil pipeline along the shortest path (or south or north) connected to the main pipeline. How to determine the optimal position of the main

ObjectiveIn the first 2 articles, we all talked about shaders, and in the second it was formally said that this shader can only be used in programmable pipelines such as OpenGL es2.x, but not in OpenGL es1.x. But we haven't been saying why, what's the difference between the two. Well, let's get this one together. Learn the rendering pipeline in OpenGL ES.BodyPipeline , the English name pipeline, believe tha

is connected to the USB bus. In order to distinguish each device, the USB Bus assigns a serial number to each device. Then, to achieve multiple communications, the device provides multiple endpoints, it is also necessary to compile the number, so that the host will eventually contact the endpoint. There are four channels in the USB world, which correspond to four transmission modes in the USB world: control Transmission corresponding control pipeline

This section is another way to learn about process communication: pipelines. A pipeline is a process that connects a stream of data to another process's channel, which typically connects the output of one process to the input of another process through a pipeline. The application of pipelines is often seen in shell commands, such as we want to list all files named "Test" under the current file: Ls-l | grep

Label:in the two previous articles the basic aggregation function of data aggregation in MongoDB count, distinct, group > and the MapReduce of data aggregation in MongoDB >, we've provided two implementations for data aggregation, and today, in this article, we talk about another way to implement data aggregation in MongoDB-the aggregation pipeline aggregate. In the face of the user's demand for data statistics, MONGODB has introduced a new functi

As a data processing mode (see [POSA] Volume 4), pipeline-filter divides application tasks into several self-complete data processing steps and connects them to a data pipeline. This article introduces a less common pipeline-filter variant-the pipeline-filter of the tail loop. Of course, this is only available in speci

In the last article (TBB: Pipeline, the power of the software pipeline), we finally raised several questions. Let's take a look at how TBB: Pipeline solves them one by one. Why can pipeline ensure the sequence of Data Execution? Since TBB executes tasks through multiple threads in the final analysis, why is the strin

Pipe pipeline application. A friend of linux must know the pipe (pipeline) function provided by shell. maybe you do not know his full name yet. you have never used the following command: catINSTALL | more commands of this type. a linux user must know the pipe (pipeline) function provided by shell. maybe you do not know its full name, you have never used such a co

Chemical Pipeline Simulation Technology Pipelinestudio v3.4.0.0 Final-iso 1CD stable versionPipelinestudio (Pipeline Studio) is also a highly acclaimed operator training resource. They do not have to enter the control room to observe the hydraulic effects of operating changes in the offline environment. They can learn how to predict the results of different operations running on the pipe, thereby comprehens

IIS 7.0 supports two types of pipe modes:(1) IIS 7.0 provides the latest integrated pipeline mode (Integrated),(2) Classic pipe mode, classic pipe mode is provided by the previous version of IIS.We can set the pipeline mode through the application pool, which is especially useful for IIS administrators because it allows one server to run only one mode, or two modes to run on a single server at the same time

[Java iO] _ pipeline stream notes Objectives of this chapter:Understanding the use of thread communication streams (pipeline streams) Pipeline Flow The main function of a pipeline stream is to communicate between two threads, namely, pipedoutputstream and pipedinputstream. If you want to output a

In Linux),), (, (redirection and pipeline commands 1 redirection 1.1 redirection symbols> The output is redirected to a file or device to overwrite the original file.>! The output is redirected to a file or device to forcibly overwrite the original file.> The output is redirected to a file or device to append the original file.1.2 standard error redirection symbols2> redirect a standard error output to a file or device to overwrite the original file B