apache performance tuning linux

Today, developers continue to develop and deploy applications that use lamp (linux®, Apache, MySQL, and Php/perl) architectures. However, server administrators often have little control over the application itself, because the application is written by someone else. This article focuses on tuning the database layer to achieve maximum efficiency. About MySQL

Recently it has been a tangle of performance analysis and tuning how to start with hardware first, or from code or database first. From the operating system (CPU scheduling, memory management, process scheduling, disk I/O), Network, Protocol (HTTP, TCP/IP), or from application code, database tuning, middleware configuration and so on.Single middleware also sub-we

MySql performance tuning policy and mysql tuning policy This topic provides detailed parameter descriptions for my. cnf configuration. The sample configuration is as follows: # Cat my. cnf # MySQL client library initialization. [Client] Port = 3306 Socket =/tmp/mysql. sock Character-set-server = utf8 # The MySQL server [Mysqld] Init_connect = 'set na

Linux command-line tools:1, Top command: can display the system each process occupies the resource condition.2. SAR command: the system CPU and memory can be sampled periodically.3,vmstate command: It can count the CPU and memory usage and swap usage information, can also be periodically statistical information.4.iostat Command : Provide detailed IO information5,pidstat command: not only can detect the process, but also to detect threads.Windows Inspe

know the performance of the problem, such as: insufficient bandwidth, insufficient memory, TCP buffer is not enough, and so on, many times, do not need to adjust the program, only need to adjust the hardware or operating system configuration can be.#p #3.2 Using the profiler testNext, we need to use the performance detection tool, that is, using a profiler to look at the

Rotten mud: Application of apache Performance Testing Tool AB and apache Performance Testing This article was sponsored by Xiuyi linfeng and first launched in the dark world. Website performance stress testing is an essential part of the

Xhprof. Xhprof.io uses MySQL in configuration file storage and is less user-friendly than Xhgui.XdebugBefore the advent of xhprof, Xdebug already existed--xdebug is an active Performance analyzer, which means that it should not be used in production environments, but can gain insight into the code.However, it must be used in conjunction with another tool to read the output of the parser, such as Kcachegrind. But Kcachegrind is hard to install on non-

This is the fifth article in the series "Become a Java GC expert". In the first in-depth Java garbage collection mechanism, we have learned the different GC algorithm flow, GC working principle, the new generation (young Generation) and the old generation (older Generation) concept. You should be aware of the 5 GC types in JDK7 and the impact of various types on your application.In the second how to monitor Java garbage collection, it explains how the JVM actually performs garbage collection, ho

, that is to say, to improve the throughput performance of individual Tomcat as a server. In tomcat, the APR library is actually used to read files and perform network transmission by using JNI (short for Java Native Interface, which is called locally in Java) in Tomcat. It can greatly improve Tomcat's processing performance on static files. If you use HTTPS transmission, it can also improve the processing

management. It enables you to monitor application, system statistics, and system parameters in real-time and historical mode. In addition, DB2 PE can also help you analyze performance bottlenecks and provide tuning recommendations for system and application performance. With performance Expert, you can manage various

System Performance Tuning for CentOS servers Linux is an open-source operating system that supports various hardware platforms. Linux servers are world-renowned. The main difference between Linux and Windows is that, by default, a Linux