Disk Io Rate

Sina Weibo is one of the largest interactive social platforms in the country, compared with other Sina company's network business, the early peak of micro-blogging business comes earlier, the late peak lasts longer, and most importantly, the business pressure of Sina Weibo often has very fast and intense growth in a short time. Sina Private Cloud Platform System architect Chen Ledong introduced. ▲ Sina Private Cloud Platform System architect Chen Ledong introduced Sina microblogging system platform "for example, after a hot event, relevant visitors, fans will be in a very short period of time to break through the growth rate of 85%, or we do 1-2 micro ...

The hybrid flash array is superior in performance to an array based on traditional hard drives, with lower latency and cheaper prices than most pure flash arrays. However, their prices are still higher than those based on traditional hard disks, and their structures are much more complex. 　　Given the price and complexity, what kind of applications and environments can derive the most benefit from a hybrid flash array? First, let's look at the purpose of developing a Flash array: High data growth rates have had a huge impact on the data center. Analysis of this problem can start from "3V", namely: Volume (volume) 、...

In peacetime is asked the most questions about the MySQL database performance optimization issues, so recently intended to write a MySQL database performance optimization of the series of articles, I hope that the junior high level MySQL DBA and other interested in MySQL performance of friends to help. Databases are IO-intensive applications whose primary responsibility is data management and storage. And we know that the time to read a database from memory is the microsecond level, and reading an IO from a common hard disk is at the millisecond level, both ...

When cloud computing arrives, IDC industry service providers and users also ferment some changes, some like to embrace the emerging things users have begun to use IaaS services, such as cloud host. 　　This article introduced the cloud host and the traditional IDC service, and has made the comparison to several main manufacturers in the cloud host industry, including Sheng, Aliyun, Linkcloud. 1, when the cloud computing met IDC IDC is the abbreviation of Internetdatacenter, namely the Internet Data Center. IDC as an industry, also refers to the Internet infrastructure related to the increase ...

The greatest fascination with large data is the new business value that comes from technical analysis and excavation. SQL on Hadoop is a critical direction. CSDN Cloud specifically invited Liang to write this article, to the 7 of the latest technology to do in-depth elaboration. The article is longer, but I believe there must be a harvest. December 5, 2013-6th, "application-driven architecture and technology" as the theme of the seventh session of China Large Data technology conference (DA data Marvell Conference 2013,BDTC 2013) before the meeting, ...

With the start of Apache Hadoop, the primary issue facing the growth of cloud customers is how to choose the right hardware for their new Hadoop cluster. Although Hadoop is designed to run on industry-standard hardware, it is as easy to come up with an ideal cluster configuration that does not want to provide a list of hardware specifications. Choosing the hardware to provide the best balance of performance and economy for a given load is the need to test and verify its effectiveness. (For example, IO dense ...

Asya Kamsky, chief solution architect at MongoDB, recently published an article outlining 10 things to know about running MongoDB on a large scale. MongoDB also needs DevOps. MongoDB is a database. Like any other data store, it also requires capacity planning, tuning, monitoring and maintenance. Do not because it is easy to install, get started, and at the same time more natural than the relational database to meet the developers ...

"Carefree Tour" is "Zhuangzi" a book of the first article, the author uses the imaginative imagination to describe an ideal state: "By the Heaven and earth, Yu Six gas change, to swim infinity", that is, to adapt to the nature of all things, to grasp the changes in the environment, free from any constraints, freedom of activity, to achieve "carefree" realm. 　　"Carefree Tour" is very representative of Zhuangzi's philosophy, because of its philosophical in the uncanny imagination, written Kiwi magnificent and praised. Coincidentally, cloud computing, large data era, with the data volume, the number of applications and the number of users increased, enterprise storage systems are facing the expansion of the difficult, inefficient ...

Process-aware cloud job resource Scheduling Weishing This paper presents a process-aware task scheduling algorithm ioaware o This algorithm evaluates the hardware performance of compute nodes and guesses the attributes of tasks during the execution of tasks. When the successor task is assigned, the performance of the compute node is assigned to different tasks, thus achieving the shared compute node disk IO effect. This can shorten the execution time of parallel tasks and increase the throughput of the cluster. The characteristics of the ioaware algorithm are embodied in two aspects: first, from the task to the disk IO ...

April 24, we released a preview version of the SQL Database base level (preview) and standard (preview) new service levels and new business continuity features. In this blog post, we delve into the performance of new levels in SQL Database. Begin with the need for change. We focus on performance (specifically predictable performance) in new service levels, driven primarily by strong customer feedback on SQL Database Web-Level and enterprise-class performance. Web-and enterprise-level performance ...