LAMP 系统性能调优，第 2 部分: 优化 Apache 和 PHP
http://www.ibm.com/developerworks/cn/linux/l-tune-lamp-2.html

Apache Performance Tuning
http://www.devside.net/articles/apache-performance-tuning

Performance Tuning Tips for Apache
http://www.webreference.com/programming/Apache-Performance-Tuning/

Apache tuning and monitoring : HSLAB HTTP Monitor
http://apache-monitor.com/

How to configure Apache versions 1.3.x - 2.0.x ?
http://kb.hs-lab.com/content/2/1/en/how-to-configure-apache-versions-13x-_-20x-.html

How to configure For Apache versions 2.2.x ?
http://kb.hs-lab.com/index.php?action=artikel&cat=2&id=2&artlang=en

Introducing LAMP Tuning Techniques
http://tim.oreilly.com/pub/a/onlamp/2004/02/05/lamp_tuning.html

监控：

Cacti监控Apache
http://www.php-oa.com/2008/09/03/apacheserverstatuscacti.html

《HP Performance Monitoring Best practice》- Web Server Monitoring - Apache Monitoring

How to monitor Apache web server traffic in real-time using apachetop
http://apache-monitor.com/articles/how-to-monitor-apache-web-server-traffic-in-real-time-using-apachetop.php

SE Toolkit:
http://www.setoolkit.org/cms/
http://sourceforge.net/projects/setoolkit/

Ganglia：
http://ganglia.sourceforge.net/
http://www.ibm.com/developerworks/cn/linux/l-ganglia-nagios-1/index.html

Apache日志分析：
http://www.webalizer.org/

apache负载测试工具：
Apache HTTP server benchmarking tool(ab)
http://httpd.apache.org/docs/2.2/programs/ab.html

httperf
http://www.hpl.hp.com/research/linux/httperf/
http://sourceforge.net/projects/httperf/

The Grinder, a Java Load Testing Framework
http://grinder.sourceforge.net/

LoadRunner