Kernel Paging

Kernel Mode Linux is a tool that can execute user programs in kernel mode. In Linux kernel mode, the user program can directly access the kernel address space. Unlike other kernel modules, the user executes the program as a normal process (except the privilege level) for scheduling and paging execution. Kernel Mode Linux 3.3_001 This version incorporates the 3.3 Linux kernel. Software Information: http://www.yl.is.s.u-tokyo.ac.jp/~t ...

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 ...

With the extensive deployment of multi-core systems, clusters, grids and even cloud computing in recent years, virtualization technology has become more and more advantageous in business applications, not only reducing it costs, but also enhancing system security and reliability, and the concept of virtualization has gradually deepened into people's daily work and life. Aiming at the x86 platform, this paper first gives the basic concept and classification of virtualization technology, then expounds the realization principle and challenge of pure software virtualization, and finally introduces ...

Absrtact: In the mobile browser market to do a good job of UC, following the introduction of the TV version of the browser March, to seize the living room entrance, this time again released the UC browser computer version, configuration dual-core dual engine, with Blink kernel and Trident kernel. UC Browser from the computer in the mobile browser market to do a good job of UC, following the introduction of the TV version of the browser in March, to seize the living room entrance, this time again released the UC browser computer version, the configuration of dual-core dual-engine, carrying Bl ...

Absrtact: In the mobile browser market to do a good job of UC, following the introduction of the TV version of the browser March, to seize the living room entrance, this time again released the UC browser computer version, configuration dual-core dual engine, with Blink kernel and Trident kernel. UC Browser from the computer in the mobile browser market to do a good job of UC, following the introduction of the TV version of the browser March, to seize the living room entrance, this time again released the UC Browser computer version, configuration dual-core dual engine ...

This article describes the implementation of large pages in the Linux operating system. From the memory layer, file system layer, LIBHUGETLBFS, and how users use the big page and so on in these aspects are analyzed and introduced. Gives you a better understanding of the implementation of the big page in the kernel and http://www.aliyun.com/zixun/aggregation/6579.html "> User usage." Large pages are primarily designed to provide an optimized way for users to use large amounts of memory. It passes through the hardware ...

ARM based servers adhere to very low power consumption and excellent per watt performance ratio, it's also possible to put an incredibly large number of servers on a rack--and now you've implemented up to 1000 arm servers in one rack (48 server nodes in a 2U chassis), 　　All of these nodes consume less than 5KW of power (or a four-core arm node consumes about 5W). But when a new technology is advertised, it's best to remain skeptical. Because people are happy to know something new, the media always shop ...

In the mobile browser market to do a good job of UC, following the introduction of the TV version of the browser March, to occupy the living room entrance, this time again released the UC browser computer version, configuration dual-core dual engine, with Blink kernel and Trident kernel. UC Browser from the computer version of the "Smart Spell page", "Cloud Acceleration", "Download Acceleration", "cheating" and other flagship functions to see, UC This is the mobile version of the browser feature features migrated to the PC side, or to promote the UC "multi-screen strategy" implementation. UC Browser computer version support ...

With the advancement of Intel's Tock strategy, we have a new processor kernel Haswell this year, and Intel also released the new Haswell kernel Xeon E3, E5 and E7 family on this year's IDF. There are many things to look forward to in the new product, and the server channel http://www.aliyun.com/zixun/aggregation/21263.html "> The first time after the IDF technical information ...

Designing 1 applications doesn't seem to be difficult, but it's not easy to achieve the optimal performance of the system. There are many choices in development tools, database design, application structure, query design, interface selection, and so on, depending on the specific application requirements and the skills of the development team. This article takes SQL Server as an example, discusses the application performance optimization techniques from the perspective of the background database, and gives some useful suggestions. 1 database design to achieve optimal performance in a good SQL Server scenario, the key is to have 1 ...