Linux High Memory

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 ...

In the absence of a breakthrough in desktop Linux, the steady growth of Linux in the server market has made it more of an enterprise-class application business card. However, with Linux's breakthrough in the field of mobile computing, mobile office has a new interpretation of the concept of Linux enterprise-class applications.　　In addition, the development of WEB 2.0 and cloud computing has brought new development opportunities and challenges to open source. The virtualization giant VMware, a firm leader in Mobile, has recently joined the Open-source organization Li ...

Explore cloud computing from a linux® perspective and discover some of the most innovative and popular linux-based solutions-paying particular attention to choices that can bring environmental benefits. We have discussed cloud computing from a variety of perspectives in a number of contexts. For embedded Linux engineers and enthusiasts, cloud ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology The purpose of the lobby panel is to make the Linux server easy to use. It is entirely possible to discard the cumbersome commands. In the last 2 years, a lot of Linux panels have free also have fees, we choose more opportunities, especially free and open source, today is one of the introduction, only a few months, functional aspects ...

"Tenkine Server channel February 26 News" February 25, Intel officially released a new generation of Xeon E7 V2, the tide is also displayed on the platform based on the three new-four-way server nf8460m3, nf8480m3, and eight server 810. Wave the next generation of servers for the application of memory computing needs, in the availability of a large number of enhanced, using 53 highly available technology to achieve from the signal, chip to the component level of the overall fault tolerance, greatly improve the continuity of the system level. Wave at Intel press conference Show 3 E7 ...

For small and medium-sized enterprises, there are many free and open source router and firewall solutions, even as a business choice. 　　Many of these products offer LAN services, such as VPN services, hotspot gateways, and the use of mandatory network portals to share wireless networks. Here, the editors find open source and free router projects that are suitable for businesses that include small businesses, midsize, and even the size of Cisco and Juniper.  Gossip Less, we look at these seven open source and free Linux network operating system. &nb ...

At the end of March, Red Hat released its fiscal year 2012 and full-year earnings for the year ended February 29, 2012. Red Hat's total revenue for fiscal year 2012 was 1.13 billion dollars, according to earnings reports. At this point, Red Hat has become the first IT industry revenue more than 1 billion dollars of open source solution vendors. How does Red Hat do three years 1 billion? What are the new trends in red Hat in the past 2012 years? What are the plans for the future? Core Linux business and virtualization this May, the Red Hat Enterprise Linux has been unveiled for 10 years. May 2002, Red Hat launched the first enterprise Linux ...

The China Railway Customer Service Center website (12306.cn) is one of the world's largest real-time trading systems. At the peak of the Spring festival in early 2012, 20 million people visited the site every day, with a maximum of 1.4 billion clicks per day. A massive influx of simultaneous internet access caused 12306 to be nearly paralyzed. To this end, starting in March 2012, the Railway Corporation (formerly the Ministry of Railways) began research, transformation 12306. June 2012 selected Pivotal GemFire distributed Memory Computing platform Transformation 12306, by the Iron Academy and the Capital Billiton Hongyu (IISI ...

class= "Post_content" itemprop= "articlebody" > Qu Xing for part of the year, the second, should have a very deep memory, was red all over the north and south. Although it has been gradually replaced by smartphones, tablets and other portable devices, but there are still people have a unique feeling ... PS explosion Point Small Insider: Small x Programming Life is also from the beginning of the song star Yo ~ There are students in the knowledge asked: "What is the use of the song star operation ...

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 ...