single phase versus three phase

Finally, we read all the code in the uboot phase. The general feeling is that the uboot code is really clever. Reading good code is like reading a good book, reading it repeatedly, thinking carefully, and summarizing it in time. This is the king! Well, I don't need to talk much nonsense. Here I will summarize my experience in uboot reading. I mainly want to take a note for myself. The experts can see that this article has completely passed ~ No. Thank

Linux is the most customizable release, you get just a basic system, and you can build your own distribution on it.GentooGentoo is a Linux-based free operating system that automatically optimizes and customizes almost any application or requirement. The quest for extreme configuration, performance, and top-notch user and developer communities are hallmarks of the Gentoo experience. Gentoo's philosophy is freedom and choice. Thanks to a technology called Portage, Gentoo can be an ideal secure se

is generally assumed that the potential probability density function of a single pixel is a Gaussian or Gaussian mixture function. For details, see [5-7 ]. In article 8, stauffer and Grimson propose an Adaptive Background Subtraction Method to Solve the motion segmentation problem. In their work, they created a Gaussian mixture probability density function for each pixel, and then updated the model with an immediate approximate value. Document [] pro

/Files/lzhdim/IT project planning stage .rar It12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">Planning phase of the project 2.1 it MSO-ascii-font-family: " times new roman"; mso-hansi-font-family: "times roman" "> Project Integrated Plan Template ( 1 MSO-Hansi-font-family: "Times New Roman" ">) -- Overall project introduction 2.2 it MSO-ascii-font

same year's technology Daniel sit together to drink coffee?So, for the next year, you're ready to do this:1. Learn native JS. Only understand the principle of JS, in order to better apply the framework language based on it, that is, you--jq!2. Follow the mainstream, learn HTML5 and CSS3. Yes, if you don't study, it's out.3. Start contact learning the next big stage of language--ajax, node. js, Angular.js and so on, although many, but slowly, will always learn.4. Early to sleep, lose weight, imp

use JavaScript3.1: Written directly through 3.2: Via link external js file3.3: The value of the event property as an element or the HREF attribute value of the hyperlink4: Code masking4.1:4.2: If the browser does not support JS, you can use the the basic syntax of 5:javascript5.1:javascript Order of execution(1): Executes sequentially in the order in which they appear in the HTML file(2): Optimization due to the order of HTML execution of the JS code (script) is best placed in the body tag, pu

(* * *)* Start tag and end Tag.* contains tag body:* Does not include the label body:* Cannot cross-nest* Only one root element (must have, and only one)* Naming specification:* Case-sensitive:* Cannot start wrong:* Cannot start with an XML (xmlxml XML) error:* cannot contain spaces and colons.* Attributes (* * *)* custom: naming specification Ibid.* cannot have the same attribute on the same element. （*****）* double quotes or single quotes can be Us

No. 01 Session: Overview of the overall course-----------------------The following is a distributed architecture and Deployment Section------------------------------------------------------------------No. 02 Lesson: The basic knowledge of distributed deployment and the evolution of system distributed deployment part I.No. 03 Lesson: The Evolution of system distributed deployment the second part; problems caused by distributed deploymentNo. 04 Lesson: Inter-module invocation: Problems, scenarios,

code number, the Machine_arch_type symbol is defined in the 32039-32050 lines of include/generated/mach-types.h. After analysis, it is determined that the parameter value is 2456.* function is to find the MACHINE_DESC descriptor corresponding to the machine code by passing in the machine code number, and return the pointer to this descriptor.* Actually the function of real work is lookup_machine_type, find this function found in Head-common. s, the real work function is __lookup_machine_type* H

variable name: traversed target) { } ③. Cautions: The enhanced for loop is also obtained using an iterator, except that the acquisition iterator is done by the JVM and does not require us to obtain an iterator, so the collection object is not allowed to modify the number of elements in the collection when using the enhanced for loop variable element. When you enhance an element of a for loop variable collection, you cannot call the Remove method of the iterator to delete the eleme

springboot Integrated Quartz cluster mode (phase III) This issue will provide quartz clustering capabilitiesCluster Case Analysis: The previous issue of the mail delivery function, if the service needs to deploy multi-node, but the scheduled task does not support the cluster, so the multi-node timing task will be run at the same time, If the user is sent an e-mail notification, in this case, the user will be sent two times the same message, n nodes w

Linux operation and Maintenance Phase II (ii) VI EditorVI Editor (full-screen plain text editor)1. Command mode, insert mode, last line mode2. a insert in the word specifier the cursor a at the end of the line where the cursor is insertedI insert in the word match either the cursor i insert at the beginning of the line where the cursoro insert a new line under the cursor o insert a new line on the cursor: w Save: Q do not save exit: Wq Save E

Linux Operations phase Fifth (ix)ISCSICLVMGFS2GFS2(Global filesystem, Version2, the CFS cluster file system, using HA 's information layer, to each node Inform yourself of the lock you hold)CLVM(cluster Logical Volume management, cluster logical volume management, the shared storage into a logical volume, the use of HA's heartbeat transmission mechanism (communication mechanism, for the mechanism of brain fissure processing), each node to start the C

Linux Operation Phase IV (i) MYQL Basic concepts and steps for compiling and installingFirst, the relevant basic concepts: 1. file storage: Data redundancy and inconsistency, data access difficulty, data isolation, integrity problem, atomicity problem, concurrency access exception, security. 2, DBMS (Database Management System) function: Data management independence, data access, data integrity, security, data centralized management, concurrent storag

location on a separate server.replicas can be kept in sync with the source data continuously or at scheduled intervals. One-way synchronization and bidirectional synchronization are possible. Replication can even be used to keep several datasets in sync with each other. at the first level, I'll cover basic replication components and describe how they work together to replicate data and change data. We'll also look at a detailed example of setting up a simple replication scenario. Replication

HTTP protocol requests. Typically writing a servlet will generally allow the servlet to inherit the HttpServlet rewrite service method. So often after inheriting the httpservlet do not need to rewrite the service method, only need to rewrite the Doget and Dopost methods. The code that often requests the content to be processed is consistent, so you need to make doget and Dopost call each other to simplify programming. 7. The difference between ServletConfig and ServletContextServletConfig is us

The difference between a process and a thread:Process: refers to a running program that becomes a process when a program goes into memory run. Threads: A thread is an execution unit of a process. Summary: There will be at least one process after a program runs, and a process can have multiple threads .Multithreading: Multithreading is a program that has multiple threads in progress .The difference between a multithreaded and a single-threaded thread

My name is Liuzanyuan, from Linqing, Liaocheng, Shandong province.Not yet graduated, it belongs to the internship. Prior to the Heze Vocational College of Information Engineering Computer application Technology of a junior student. Originally came to our school to do the training is the 17 March, at that time I was in the confusion after graduation period, to practice after the feeling of learning this is also very good, although I did not know how to learn this future of how, also do not know h