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Cache cohernce with multi-processor Author: BNNReposted from: CPU and compiler of linuxforumAfter writing an article about cache coherence, I found that there was a good article about bnn2 years ago. I knew it was not so troublesome to write it myself :) Recently work with Dual CPU kernel part. For Dual CPU, or we say, multi-processor, the big challenge part for a kernel is how to handle the cache coherence

Tags: appear single processor ROC own difference purpose BSP Rule roadOriginal link: http://blog.scoutapp.com/articles/2009/07/31/understanding-load-averagesYou may have a good understanding of the load average (load averages) for Linux. The load mean can be seen in the uptime or the top command, and they may appear like this:Many people will understand the load mean: Three numbers represent the average system load (one minute, five minutes, and 15 mi

Understand the average Linux processor load. you may have a full understanding of the average Linux Load (loadaverages. The average load value can be seen in the uptime or top command. They may look like this: www.2cto. comloadaverage: 0... to understand the average load of Linux processors, you may have a full understanding of the average load of Linux. The average load value can be seen in the uptime or top command. They may look like this: www.2cto

This chapter is selected from the Intel official documentation and translated by myself. Note that the following English word cache is used. If C is in uppercase, that is, cache, it indicates the term "cache". If C is in lowercase, that is, cache, indicates the verb -- indicates saving data to a high-speed buffer storage. Intel 64 and the IA-32 architecture provide the ability to manage and enhance the execution of multiple processors connected to the same system bus. These include:

we will introduce the method for processing annotation at the CLASS level during the compilation period.APTAnnotation Processing Tool is a built-in Tool for javac to scan and process Annotation information during compilation. From JDK 6, apt exposes available APIs. A specific processor receives a Java source code or compiled bytecode as the input, and then outputs some files (usually. java files ). This means that you can use apt to dynamically gener

Http://www.gracecode.com/posts/2973.htmlunderstand the average processor load in Linux Original article: Http://blog.scoutapp.com/articles/2009/07/31/understanding-load-averages You may have a good understanding of the load averages in Linux. The average load value can be seen in the uptime or top command. They may look like this: load average: 0.09, 0.05, 0.01 Many people will understand the average load as follows: three numbers represent the averag

Interrupt handling of ARM processors1) There are 8 operating modes in the arm processor (and the CPU handles different task modes), typically 5 Abnormal mode, In these 5 Modes There are three interrupt mechanisms, namely the FIQ mode (High priority interrupt mode);IRQ Mode (Low-priority interrupt mode), and one that is the SVC mode (the mode generated when the reset or soft interrupt (SWI) instruction executes)2) First understand what the interrupt m

The history of 64-bit computing is quite rich and interesting. Companies such as Cray have started using 64-bit registers in their systems in the 70 's, but the truly pure 64-bit computations didn't really come until the 90 's. The first is the R4000 of MIPS, then the DEC Alpha processor. By the middle of the 90, both Intel and Sun had 64-bit designs. The real turning point for consumers is that AMD released a 64-bit PC

Processor designers always focus on different performance promotion strategies in order to perform as many computations as possible within each clock cycle. Faster frequencies, larger data paths, and different instruction sets improve performance. However, one aspect of performance improvement that is most likely to cause misunderstanding is the impact of hyper-threading on processor performance. Hyper-Thr

to each partition independently. The configuration and management of logical partitions is through the Hardware Management Console (hardwareManagement Console. 2. Problem Solving: After introducing the concepts of "slot" and "lpar", how can we check the number of slots or lpar of the current machine? First of all, we need to know that lpar has many applications on Minicomputers, and is rarely used on x86 servers. To view the number of slots, run the following command: [Root @ compute-30-02 ~] #