elements of power system analysis

installed. In the initial state, only the dentry representing the root directory and the inode it points to (this is generated when the root file system is mounted, see below ). to open a file, the corresponding node in the file path does not exist. the root directory's dentry cannot find the desired child node (it does not have any child nodes yet ). at this time, we need to use the lookup method in inode-> I _op to find the required inode subnodes

Directory1: Introduction2: How to crawl and analyze log3: How to determine the problem pointIntroduction system stability is mainly to solve the system crash restart. There are two parts: Android/kernel kernel analysis required files and tools: Mtklog, Vmlinux, GAT tools, parsing vmlinux scripts.Vmlinux Path: alps\out\target\product\k55v1_64_op01_pre\obj\kernel_o

Article title: analysis of the file system and its storage mechanism in embedded Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Embedded systems are different from general-purpose PCs. Generally, they do not have stora

There is a similar Prop module in Android. the Prop Module stores Many of the configuration information that is run by the system and reads it when a system state is required for the program to run. the Prop module is essentially a piece of data that is stored in memory while the system is running, and reads and writes data to operate on that area, with the bene

Vulnerability Analysis of an attack Tracing System (affecting customers' core network segments and sensitive monitoring information) The device is deployed on the Intranet. the device is directly connected to the host device monitored on the Intranet or the trunk route. The device needs to connect to the Internet and the cloud is connected.It's been a long time to let it go. You need to synchronize the rule

XP system computer Hardware common problem analysis is as follows: 1: The computer's motherboard capacitor damage to our graphics card is not normal use, the solution is that we directly use the capacitor on the motherboard to replace the nominal value can solve the problem. 2: The computer power switch can not be used normally, the Start button is not open aft

1. Basic Concepts Hash list (hash table. Also called a hash table). is a data structure that is directly visited based on key value.That is, it visits records by mapping key code values to a location in the table. To speed up the search.This mapping function is called a hash function. The array that holds the records is called the hash table.2. Frequently used methods for constructing hash functionsHash functions can make the access to a data series more efficient and effective. Through the hash

modeling tasks.Through the study in this chapter, we make it clear that the design is about system implementation. This chapter describes the two main aspects of design-the system architecture design and the detailed design of the program in the system. A typical is application system is based on client/server archite

system is to establish a single view of the full line of customer information, effective pooling of customers, institutions, products, accounts, channels and other analytical elements of the basic information, to become a service at all levels of management decision makers and business analysts of the Public Information query analysis platform, so that the entir

Article title: analysis of the development trend of the operating system in the next five to ten years. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In order to adapt to the requirements of the new era, the operating

"Write the operating system yourself" read Sense http://blog.csdn.net/zgh1988/article/details/7059936 Comprehensive analysis of the first chapter of "self-writing Operating System" http://blog.csdn.net/zgh1988/article/details/7060032 Comprehensive Analysis of the "self-writing Operating

Event deletion jquery.removeevent Jquery.removeevent = Document.removeeventlistener? function (elem, type, handle) { if (elem.removeeventlistener) { Elem.removeeventlistener (type, handle, false) ; } } : function (Elem, type, handle) { var name = ' on ' + type; if (elem.detachevent) { //#8545, #7054 to avoid the memory leaks in ie6-8 //DetachEvent The custom event needs to pass the first parameter, cannot be undefined if ( typeof elem[Name] = = = core_strunde

find the desired child node (it does not have any child nodes yet ). at this time, we need to use the lookup method in inode-> I _op to find the required inode subnodes (this is usually through the method defined by the specific file system type, search from the file system storage medium. See linux File System implementation

Android 5.0 kernel and source code learning (2)-source code download and system startup process analysis, android5.0 I,AndroidSource code download The last time I briefly introduced the hierarchical structure of the Android system, I started to figure it out-download the source code and analyze the source code! So where is the Android source code? Of course is G

handler function closes the exit because it cannot detect a change in state.There are two places that will be called when the timer is opened:1. The system opens a task queue, every 100ms periodic call detection there is no key triggerStaticvoid Adc_key_poll (struct work_struct*work) {if (!ddata->in_suspend) {Read ADC voltage result= Rk_key_adc_iio_read (Ddata); for (i=0; I->nbuttons; I++) {Allowable values have a certain range of driftif (Result->ad

a reconstruction of the completed system. Please also give your comments and suggestions.Requirement Analysis: 1. For details, refer to the test mode: MCTs and other computer certification exams, Japanese proficiency exams, and daily student exams. 2. Exams, questions, and exams: 1) The test type is roughly determined. Each test type contains several knowledge points, and each knowledge point involves the