disk access

Interview FAQ--database optimization How to optimize millions of data One, five rules of database access optimization In actual development, we mainly need to optimize the SQL statements, we need to quickly locate the bottleneck point of energy,

Why do I need a disk array? How to increase the speed of disk access (acces), how to prevent data loss due to disk failure and how to effectively use disk space, has been a computer professionals and users worry, while the high cost of

Many people have heard of or used Norton Ghost This software, however, because its interface is all English, causing many domestic netizens for this headache. The following is an example of its version 7.0, which provides ghost command-line

I. SummaryThis paper takes MySQL database as the research object and discusses some topics related to database indexing. In particular, MySQL supports many storage engines, and the various storage engines support the indexes differently, so the

Query optimization Technology of databaseQuery optimization Technology of databaseDatabase system is the core of MIS, and online transaction processing (OLTP) and online analytical Processing (OLAP) based on database is one of the most important

SummaryThis paper takes MySQL database as the research object and discusses some topics related to database indexing. In particular, MySQL supports many storage engines, and the various storage engines support the indexes differently, so the MySQL

I. SummaryThis paper takes MySQL database as the research object and discusses some topics related to database indexing. In particular, MySQL supports many storage engines, and the various storage engines support the indexes differently, so the

"Disclaimer: This blog post is reproduced from http://www.cnblogs.com/ljhdo/p/5149401.html"The most recent work has been to deal with the SQL Server database, which requires a more comprehensive understanding of SQL Server. So also in the urgent to

Performance counters (counter) are some data metrics that describe the performance of a server or operating system. Counter plays a key role in performance testing, especially in analyzing the scalability of the system and locating the performance

Reprint Address: http://blog.csdn.net/dfbrt56/article/details/3341591Windows Common Performance Counters Performance counters (counter) are some data metrics that describe the performance of a server or operating system. Counter plays a

Data Page cache is the main aspect of SQLServer memory usage and the most occupied part. On a stable DBServer, the memory usage is relatively stable. Data Page cache is the main aspect of the memory usage of SQL Server, and also the most occupied

What is MMDBMS? The master database system (MMDB) manages the entire database or a part of the database in the master database, so you can directly access the data without accessing the disk, so that the master database has a high-performance

In fact, it is very simple to use a silly software, click a few mouse to successfully install Ubuntu from the hard disk, do not need to drive and Cd, do not need to install grub or something first, the Ubuntu dual system can be installed from the

  RAID 0, also known as Stripe or Striping, represents the highest storage performance in all RAID levels. RAID 0 improves storage performance by distributing continuous data to multiple disks for access. In this way, the system can execute data

http://www.ibm.com/developerworks/cn/aix/library/es-Javaperf/es-Javaperf4.html maximizing Java performance on AIX, Part 4: monitoring trafficThis five-part series provides several techniques and techniques that are often used to optimize Java™

1. background with the rapid development of informatization in all walks of life in China since the reform and opening up, our military informatization has also made great progress, with the ever-increasing informatization of all military services

Although the Oracle system itself provides several techniques for tuning the system performance, if the database design itself is problematic, especially in terms of structure Although the Oracle system itself provides several techniques for tuning

A Linux Process Model In the traditional UNIX model, there are two types of operations for ships or modifying processes. Fork is used to create a new process. Execve can use another Program To replace the currently running process. Thread:

Disk Performance Counter is divided into two parts:PhysicalDisk and LogicalDisk.The PhysicalDisk object is used for the An analysis of the overall disk, despite the partitions. Isk. When evaluating overall disk performance This would is the one to

Disk I/O optimization1. Performance TestingOur applications often require access to the disk system, and disk I/O is often time-consuming to determine if I/O is a bottleneck, and some parameter indicators can be referenced.We can stress test the