oracle performance tuning guide

range. That doesn't make sense either. For performance testing, we also need to define a time period. For example, it lasts 15 minutes on a certain throughput. Because the system becomes unstable when the load arrives, the system will stabilize after a two-minute time. In addition, it is possible that your system behaves normally in the first few minutes of the load, and then it is unstable and even collapsed. So it takes so long. This value, we

To improve system performance, developers can optimize the system from every angle and level of the system. In addition to the most common code optimizations, the software architecture, the JVM virtual machine layer, the database, and the operating system layer can be tuned in a variety of ways to improve overall system performance.Design TuningDesign tuning is at the top of all

StepsGeneral performance issues tuning steps:　　Step One : Identify the problemApplication code: In general, the performance problems of many programs are written, so for the module that finds the bottleneck, you should first check the code.　　database configuration: Often causes the entire system to run slowly, some large databases, such as

Portal AIX Power4 Environment, IBM WebSphere Por Tal Version 6.0 Tuning Guide A detailed description of the latter. All the differences in the environment used to evaluate WCM are clearly presented in this chapter. The complete tuning and configuration methods for any WebSphere Portal environment include: Configure the application server and the resources defin

) adds additional I/O overhead. But they can return data faster. Therefore, first_rows, first_rows_100 or first_rows_10 are selected for most OLTP systems, so that Oracle uses index scanning to reduce the number of read blocks. Note: Starting from Oracle 9i R2, the Oracle performance adjustment

, such as your S. for more information on processing ing nginx for compression please see: nginx admin guide-compression and decompression The response compressed to the client can significantly reduce the response size, reduce the required bandwidth, and then consume CPU resources to compress the data. Therefore, it is useful to reduce the bandwidth. Note that if your object has been compressed, such as ipvs, you do not need to enable compression aga

. GC Tuning target has three basic ideas: Reduce GC frequency, can increase the heap space, reduce unnecessary object generation, reduce GC pause time, can be achieved by reducing heap space, using the CMS GC algorithm, avoid full GC, adjust the CMS trigger scale, avoid Promotion Failur E and Concurrent mode failure (the older generation allocates more space, increases the number of GC threads to recover faster), reduces large object generation, and s

SQL turning is a tool in the Quest Central software produced by Quest Corporation. Quest is an integrated, graphical, Cross-platform database management solution that can manage Oracle, DB2, and SQL Server databases simultaneously. Introduction to SQL tuning for SQL Server The optimization of SQL statements is critical to the best performance of the databa

Nginx Performance Tuning Address: http://nginx.com/blog/tuning-nginx/ Tuning NGINX for Performance Nginx Performance Tuning NGINX is well known as a high

Tags: size arrangement SDN Technology share ext ODBC. NET Analysis tool downPostgreSQL Hardware Performance Tuning Translated from the article "PostgreSQL Hardware performance Tuning" PostgreSQL is an object-relational database developed by developers all over the world on the Internet. She is an open so

tuning rules that every Oracle DBA should follow Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most effective ways to do this is through

Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most effective ways to do this is through Oracle tuning. It has a large number of tuni