Pro PHP Application Performance Tuning PHP Web Projects for Maximum Performance phần 10 pot

... Pro PHP Application Performance: Tuning PHP Web Projects for Maximum Performance Copyright © 2 010 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

... rendering performance for your user. k CHAPTER 2 ■ IMPROVING CLIENT DOWNLOAD AND RENDERING PERFORMANCE 47 } /** * Foreach item within the array, create a li node * and append to the node provided. ... execute the for loop 100 ,000 times was 0.046ms. Restart your web server and now test the code shown in Listing 3 10, which contains the optimized for loop. Listing 3...

Ngày tải lên: 12/08/2014, 23:23

... 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 Software Foundation\Apache2.2\htdocs\index .php fn=isInt ... our code. Xdebug 2: PHP Debugging Tool Xdebug is a debugger and profiler tool for PHP. Along with additional debugging information, Xdebug pr...

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 ... Windows and PHP versions. Since PECL does not contain a Windows installation for XCache, we’re going to look for the proper .dll file within the official XCache web site. Load t...

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 400 6 /message .php 150 2 /message_send .php 100 2 /message_read .php 90 2 /user_profile .php 80 2 /feedback .php 15 1 ... 33 10MB 3.3MB /news .php 1,500 25 15MB 3.75MB /blog .php 1,000 17 16MB 2.72MB /video .php 600 10 8MB 0.8MB /topuser .php 400 6 17MB 1.02MB /message .php 150 2 9MB 0.1...

Ngày tải lên: 12/08/2014, 23:23

... 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 example, for a PHP ... footprint. We have used that information to limit the processes on our system to prevent disk swapping. We have also examined some configuration file tweaks that can improve performa...

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

... using APC caching for, 120 using Memcached for, 126 PHP code example, 75 php. ini APC settings, 88 php. ini eA settings for Unix, 101 for Windows, 103 PHP. ini properties, 75 phpinfo script, ... popularity of web servers, 133–134 Prefork MPM (Apache web server), 141, 170–171 prefork web servers, 137 process-based web servers, 153 Processing Config window (MySQL),...

Ngày tải lên: 12/08/2014, 23:23