Linux Kernel Explained

I. Introduction We often see some similar in the program disassembled code 0 × 32118965 this address, the operating system called linear address, or virtual address. What is the use of virtual address? Virtual address is how to translate into physical memory address? This chapter will give a brief account of this. 1.1 Linux Memory Addressing Overview Modern operating systems are in 32-bit protected mode. Each process can generally address 4G of physical space. But our physical memory is generally hundreds of M, the process can get 4 ...

The kernel has many parameters that can be adjusted in different environments. Typically, the default defaults can meet 99% of the environmental requirements, we don ' t call the http://www.aliyun.com/zixun/aggregation/3415.html ' >advanced HOWTO for The fun of it! There is a very interesting place:/proc/sys/net, you should see. Here in the beginning did not put all the ...

"Editor's note" as an operating system, CoreOS uses a highly streamlined system kernel and peripheral customization to implement many of the functions that require complex human operations or Third-party software support at the operating system level, while excluding other software that is not core to the server system, such as GUI and package manager. Linfan, a software engineer from ThoughtWorks, will bring the "Walk Cloud: CoreOS Practice Guide" series to take you through the CoreOS essence and recommended practice. This article is based on the third article: System Services Housekeeper SYS ...

"Cloud" is definitely the demand of the green age, today the entire ICT industry's electricity consumption is nearly 20% of the global electricity consumption. With the rapid development of the Internet, the green value of "cloud computing" will become more and more obvious. In this perspective, Century interconnection is for different hardware and software manufacturers to provide "platform" TSMC. Recently, Dr. Li Zhijian, chief expert of the technology strategy for the Internet, said in a media interview. Since 2007, Google has "cloud computing" that sounded a bit of a profound word band ...

Malware analysis, penetration testing, and computer forensics - GitHub hosts a host of compelling security tools that address the real needs of computing environments of all sizes. As the cornerstone of open source development, "all holes are superficial" has become a well-known principle or even a credo. As widely known as Linus's law, the theory that open code can improve the efficiency of project vulnerability detection is also widely accepted by IT professionals when discussing the security benefits of the open source model. Now, with the popularity of GitHub ...

The World Mobile Communications Conference will be launched in Barcelona on February 25, with the exception of traditional handset makers, including Microsoft, Intel and Lenovo, the Wintel Alliance is also actively exhibiting. 　　Seizing mobile Internet heights has become a consensus that companies such as Microsoft, Intel, Hewlett-Packard and Nokia are encountering a host of problems because they have not grasped the opportunities for mobile interconnection: such as the loss of Microsoft's share price, Nokia's deep losses, and Intel CEO's bizarre retirement to pay for mobile strategy failures. The story of those pioneers who turned into martyrs let's take a look at the cost of missing mobile internet. First do a pair of ...

The World Mobile Communications Conference will be launched in Barcelona on February 25, with the exception of traditional handset makers, including Microsoft, Intel and Lenovo, the Wintel Alliance is also actively exhibiting. 　　Seizing mobile Internet heights has become a consensus that companies such as Microsoft, Intel, Hewlett-Packard and Nokia are encountering a host of problems because they have not grasped the opportunities for mobile interconnection: such as the loss of Microsoft's share price, Nokia's deep losses, and Intel CEO's bizarre retirement to pay for mobile strategy failures. The story of those pioneers who turned into martyrs let's take a look at the cost of missing mobile internet. Make a first ...

"Editor's note" Shopify is a provider of online shop solutions company, the number of shops currently serving more than 100,000 (Tesla is also its users). The main frame of the website is Ruby on rails,1700 kernel and 6TB RAM, which can respond to 8,000 user requests per second. In order to expand and manage the business more easily, Shopify began to use Docker and CoreOS technology, Shopify software engineer Graeme Johnson will write a series of articles to share their experience, this article is the department ...