Pro PHP Application Performance Tuning PHP Web Projects for Maximum Performance phần 4 pptx

... Pro PHP Application Performance: Tuning PHP Web Projects for Maximum Performance Copyright © 2010 by Armando Padilla and Tim Hawkins All rights reserved. No part of this work may be reproduced ... in Figure 1–5.

Ngày tải lên: 12/08/2014, 23:22

... browser applications—I know it has for me. Firebug is a plug-in widely used by web developers that provides detailed information about a web page’s DOM, CSS, JavaScript, and, most importantly for ... later chapter. CHAPTER 2 ■ IMPROVING CLIENT DOWNLOAD AND RENDERING PERFORMANCE 31 Figure 2 4. Firebug JavaScript Profiler results for Google.com Referencing the Profiler’s resu...

Ngày tải lên: 12/08/2014, 23:23

... criteria. With the tools for measuring how well your web page is performing under your belt, you also learned how to implement performance tweaks on JavaScript and images. The performance tweaks covered ... 2 ■ IMPROVING CLIENT DOWNLOAD AND RENDERING PERFORMANCE 38 Statistics Tab The Statistics tab, like the Grade tab, provides a bit more insight into how we can improve the re...

Ngày tải lên: 12/08/2014, 23:23

... Listing 4 4 at the bottom of the file. Save the changes and restart your web server. Listing 4 4. Windows php. ini APC Settings extension =php_ apc.dll apc.enabled=1 apc.stat=1 Listing 4 4 will ... Foundation\Apache2.2\htdocs\index .php part: 1 events: Time fl =php: internal fn =php: :count 4 1 fl =php: internal fn =php: :is_int 15 1 fl=C:\Program Files\Apache...

Ngày tải lên: 12/08/2014, 23:23

... for the remainder of this chapter to demonstrate its installation process as well as measure performance improvements when using PHP. eA 0.9.6.1 is suitable for PHP 4 and all versions of PHP ... ab command, the results are shown in Figure 4 11. Figure 4 11. ab results for Listing 4 4 using XCache Comparing our new result to Figure 4 5, our application under no Opco...

Ngày tải lên: 12/08/2014, 23:23

... A prefork web server allows the web server to create a separate process (fork) based off an original process. Web servers that operate as a prefork server type tend to create a pool of processes ... 6–2. Web Server Types Web Server Type Description Prefork Process-based web server; for each incoming request, a forked process is used to satisfy the request. Threaded Thread-b...

Ngày tải lên: 12/08/2014, 23:23

... /news .php 1,500 25 /blog .php 1,000 17 /video .php 600 10 /topuser .php 40 0 6 /message .php 150 2 /message_send .php 100 2 /message_read .php 90 2 /user_profile .php 80 2 /feedback .php 15 1 ... http://localhost/info .php. You should see Figure 6– 14. Figure 6– 14. PHP information page with FastCGI PHP installed If everything was properly installed, you should see...

Ngày tải lên: 12/08/2014, 23:23

... and performance of your web server, so that you can rest assured that you will have advanced warning of any developing problems. CHAPTER 7 ■ WEB SERVER AND DELIVERY OPTIMIZATION 1 74 specific ... for the default file in the order they are specified in the directive. Make sure that the most relevant name for your particular application is placed first in this list. For ex...

Ngày tải lên: 12/08/2014, 23:23

... the PHP engine we finished installing. Toward the end of the file, type in this text: AddType application/ x-httpd -php .php PHPIniDir "C: /PHP/ " LoadModule php5 _module "C: /PHP/ php5apache2_2.dll" ... learned a process for analyzing them and making corrections. Throughout this book, we have shown you how to diagnose performance problems at each level of...

Ngày tải lên: 12/08/2014, 23:23

... modules adding dynamic modules, 142 – 143 attachment to processing pipeline, 141 – 142 overview of, 140 – 141 Prefork, 141 , 170–171 removing dynamic modules, 143 as prefork type, 137 testing Nginx ... 3 4 PHP, and Zend engine, 84 86 lighttpd web server benchmarking PHP content, 151–152 comparing static load content, 149 configuration settings, 148 – 149 description of, 144...

Ngày tải lên: 12/08/2014, 23:23