apache performance tuning linux

1, Tomcat's external tuningJava Virtual Machine (JVM) performance optimization allows you to set the size of the virtual machine using memory,-xmsThe size of these two values is generally set as needed. The size of the initialization heap performs the size of the memory that the virtual machine requests to the system at startup. Generally speaking, this parameter is not important. However, some applications in a large load of the case will be a sharp

· InnoDB Storage Engine 14. Using an Object-relational mapper (relational Mapper) With ORM (Object relational Mapper), you can gain reliable performance gains. All the things an ORM can do, can be written manually. However, this requires a senior expert. The most important thing about ORM is "Lazy Loading", that is to say, only when the need to take the value of the time to really do. But you also need to be careful about the side-effects of this mec

Tuning mysql Network Performance Debugging Tool article bitsCN.com this article is an article about Linux system network performance management skills, this section describes how to use route, netstat, and tcpdump network management testing tools and their functions. Route When configuring the network, you must specify

Debugging Tool for tuning mysql Network Performance: This article describes the network performance management skills of Linux systems, this section describes how to use route, netstat, and tcpdump network management testing tools and their functions. Route When configuring the network, you must specify the path throu

efficient results. Http://bbs.linuxtone.org/thread-5152-1-1.html3. Operating System-level optimizationA> A 64-bit system can allocate more memory and service tuning to a single process, disable unnecessary services, modify file descriptor restrictions, and reserve more resources for MySQL;B> File System Optimization: XFS is recommended for a separate file system for the data warehouse, which is generally more efficient and reliable.C> enable the noat

currently doing performance analysis of things, not how to contact perf, find a few articles combed a bit, according to the form of problems recorded here. easy to see for yourself. What is perf? Linux Performance Tuning tool, 32 cores above the tool, software performance

Lamp system performance optimization, Part 1: optimizing Apache and PHPHttp://www.ibm.com/developerworks/cn/linux/l-tune-lamp-2.html Apache Performance TuningHttp://www.devside.net/articles/apache-

, performance tuning conflicts with system management goals. If you use a commercial version of Linux or rely on third-party support, you may have to consider vendor support.If you are alone, learn how to build a pack that can work with your release, and how to integrate it into the patch system. This ensures that the software and any changes you make are built i

apache| Server | performance | optimization testing and improving performance The Apache server has been designed to be as fast as possible, and even if you use a machine that is not configured with a high configuration, you don't need to make too complex a setup, and its response content is enough to fill up all the p

The original address of this article is here: http://www.percona.com/blog/2007/11/01/innodb-performance-optimization-basics/, here is the translation. -----------------------------------------------------------This is a split line------------------------------------------------------- ---- November1, 2007 by Peter Zaitsev Note: The advanced knowledge of this article is here: http://www.mysqlperformanceblog.com/2013/09/20/innodb-

keys from table_nameTime to create an index:Generally need to be indexed in the where and join clausesConsiderations for Using Indexes:In some cases like needs to be indexed, because in a wildcard % and - start query,mysql Do not use indexesSELECT * from table-name where name like ' % admin'; Besides, there's no way to do the math on the list.SELECT * from Users where Year (adddate) The operation on each row will cause the index to fail and perform a full table scan can be modified to select

performance analysis and tuning. Background knowledge Main methods of performance analysis Monitoring: Monitoring is a common way to view the run-time behavior of an application. There are often multiple views (view) that display CPU usage, memory usage, thread state, and other useful information in real time, so that users can quickly discover the key to the

This article by show according to Lin Feng to provide friendship sponsorship, starting in the mud row world. Website Performance Stress testing is an essential part of the performance tuning process for server sites. Only let the server in the high-pressure situation, can really reflect the software, hardware and other improper settings exposed problems.

Web site Performance Stress testing is an indispensable part of the performance tuning process of the server Web site. Only if the server is under high pressure, can the software, hardware and other improper settings be revealed. Performance testing Tools The most common is the following: AB, Http_load, Webbench, sieg

Testing and improving performanceThe Apache server has been designed to be as fast as possible, and even if you use a machine that is not configured with a high configuration, you don't need to make too complex a setup, and its response content is enough to fill up all the previous narrowband connections. But as the content of the site becomes increasingly complex and bandwidth increases, it becomes increasingly important to optimize

Apache Performance Test Tool AB use detailedReprinted from: http://www.jb51.net/article/59469.htmSubmission: Hebedich font: [Increase decrease] Type: Reprint time: 2015-01-05 I want to commentThis article mainly introduces the Apache Performance Test Tool AB use detailed, the need for friends can refer to the following

# The number of worker_processes should be no more than the number of cores of the server's CPU, # Each CPU core of more than 1 worker does not make nginx performance has any promotion worker_processes 4; # The number of file descriptors used for Nginx. This needs to be set up system kernel parameter ' ulimit-n 200000 ' or modify '/etc/security/limits.conf ', reference "High load Linux