framework
Choosing an appropriate Web App Development Framework
The selection of a fitting framework for developing web applications can be critical for the success of web projects. However, this selection process is not always trivial and depends on different criteria, such as expected time-to-market, functional and non-functional requirements, experience and size of the developer team, etc. Guidance for selecting a fitting framework would be helpful.
Using cache to speed up Zend_Db
The Zend Framework offers a class named Zend_Cache. One can use several different kinds of caching-methods. For example:
- File
- Sqlite
- Memcached
- APC
- Xcache
- ZendPlatform
- TwoLevels
- ZendServer_Disk/ShMem
Because of the defined goal to speed up Zend_Db we have to concentrate on the database activities. To use the magic methods of the database-class, this class has to scan the tables to get the structure to work with. With large tables this can be very costly. In picture 1 one can see in the bottom left time costs of over 2 million. Our goal is to save the structures (metadata) of the tables in the cache so the class doesn't always have to scan the whole table on every query. File-cacheUsing files as a cache may not be the fastest (to be exactly: the slowest) but the easiest way to optimize the database access. You just have to add the following code to your bootstrap.php: $frontendOptions = array( 'automatic_serialization' => true);$backendOptions = array( 'cache_dir' => '../cache/');$dbCache = Zend_Cache::factory('Core', 'File', $frontendOptions, $backendOptions);Zend_Db_Table_Abstract::setDefaultMetadataCache($dbCache); In picture 2 the impacts of this little piece of code can be seen. The time costs are reduced to a little over 1,3 million. As said before, file is the slowest of all optimizations. With the use of Memcached (a memcached server) the costs can be further reduced.
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Speeding up project using Zend_Db
<p>An existing project realized with the Zend Framework should be optimized in terms of performance. The use of Zend_Db slows down the database access because of its automatic table-scanning and overhead. The SQL-queries as well as the table structures are already optimized and should not be changed. The configuration on the server environment:</p><ul><li>PHP 5.2.6</li><li>MySQL Server Version: 5.0.75</li><li>Zend Framework 1.5</li><li>Apache 2.6.28-16</li><li>Suhosin-Patch 0.9.6.2</li></ul><p>The update to a newer version of Zend Framework is right now not possible because of some migration problems. The changes in the code should be measurable and viewable with XDEBUG/kcachegrind.</p>
Installing JBoss Tools on Eclipse
<p>My aim is to figure out how should JBoss Tools be installed on Eclipse IDE. I guess probably most of you know already Eclipse IDE and possibly heard about JBoss Tools. As we are going to develop some Rich Internet Application, I need your advice for my statement.</p>
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