Linux Cpu Performance

Last year in the investigation of a lot of java applications, see some of the phenomenon is the programmer to run on their own environment to read the program rarely lead to troubleshooting problems will be more frustrating, so think of writing this series of articles, procedures To provide functionality to end-users, the code is only one part of it, and it needs to be relied on for jvm, os, server hardware, networking, load balancing, etc. In this series of articles, Several parts, more is only a science role, because os I use are linux, this series ...

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 ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall in our Management Server WINDOSW system is more intuitive, how much CPU use, How much bandwidth is used in memory, and so on, as long as the Task manager at Remote Desktop is clear. But in the Linux environment is not so easy, especially the server or VPS running a large site, if not and ...

October 31, 2012-Santa Clara-nvidia® (nvidia) in California, USA is delighted with the release of the latest nvidia®geforce® driver R310. This driver enables users who play games on the Linux operating system to achieve double performance (1) and significantly shorten game loading time. The new geforce®r310 driver is nvidia® (nvidia ...

What kind of virtualization technology to choose for the cloud computing platform will be a problem that cloud computing construction will face. This article compares and analyzes the architecture levels of the four mainstream virtualization technologies.

Today, open source firewalls are numerous. 　　This article will cover 10 of the most practical open source firewalls that fit your business needs. 1. Iptables Iptables/netfilter is the most popular command line based on firewalls. It is the safe line of defense for Linux servers. Many system administrators use it to fine-tune the server. The function is to filter packets from the network stack in the kernel, including: listing the contents of the packet filtering rule set, and executing fast because it only checks the header of the packet, and the administrator can ...

When it comes to servers, you're probably not unfamiliar. Many kinds of servers, Blade server is one of the most widely used. 　　Its birth at the beginning of the server industry has brought far-reaching impact, with the recent years of cloud computing gradually mature, blade Server service capabilities and a new level. At present, blade server has begun to be in the enterprise's IT Infrastructure integration and optimization, and virtualization is the best way to cloud computing, so we also have reason to believe that Blade server will be the future of the cloud computing platform ...

"Tenkine Server channel December 16 News" Denver local time November 19, held here in the SC13 Global Top500 Awards ceremony, the organizing committee announced from China's National Defense Science and Technology University team to 8.22 trillion times per second Linpack results obtained SC 　　13 Global University students Super Computer Competition computing performance, this is the national defense hkust after ISC 12, SC 12 after the third time the title. As the "Highest Computational performance award" of the defending champion, the National Defense Science and Technology University in the competition set ...

This article is the MongoDB Production notes section of the translation http://www.aliyun.com/zixun/aggregation/13461.html ">mongodb Manuel. This section focuses on the various considerations that affect performance and reliability in the production environment, and is worth the attention of workers who are deploying MongoDB. This article describes in detail the key system configurations that affect MongoDB, especially the production environment. The following are ...

More and more enterprises are using Hadoop to process large data, but the overall performance of the Hadoop cluster depends on the performance balance between CPU, memory, network and storage. 　　In this article, we will explore how to build a high-performance network for the Hadoop cluster, which is the key to processing analysis of large data. As for Hadoop "Big Data" is a loose set of data, the growing volume of data is forcing companies to manage in a new way. Large data is a large set of structured or unstructured data types ...