Installing any of these products is very straightforward, and doing so will give you immediate and measurable performance gains. One of the most popular ones is an open source product called APC.
Logicworks 5 scaling windows#
Zend Server comes with one built-in and Microsoft provides one for Windows machines called ‘ WinCache’. There are numerous opcode caches available. Think of an opcode cache as sitting between PHP and the server machine after a PHP script is first compiled, the opcode cache remembers the compiled version and future requests simply pull the already compiled version. Installing an opcode cache into your Web server can circumvent this limitation.
Logicworks 5 scaling code#
PHP is a scripting language, and therefore recompiles the code upon every request. The first of these is installing an opcode cache. There are some very easy things you can look into that can immediately increase performance and perhaps relieve the need to scale at this point in time completely, or at least make it easier. One thing that you should look at first is any low-hanging fruit within your Web server and PHP setup. Similarly, you can’t really call an application scalable if it requires one Web server per user for adequate performance, as it would be untenable for you to provide that. As you increase the performance of an application, it requires fewer resources to scale it, making scaling easier. Scalability and performance obviously are interrelated. A scalable application is one that theoretically, no matter how much traffic is sent toward it, can have capacity added to handle that traffic. Scalability, in contrast, is the quality that enables your application to grow as your traffic grows. When people talk about increasing the performance of their application, they are talking typically about making it take 300ms instead of 500ms to generate the content. Performance, in the context of a Web application, is how fast you can serve data (pages) to the end user. Scalabilityīefore we go much further, we should discuss the differences (and similarities) between performance and scalability. In this two-part article I will share some of the lessons learned, and take you step by step through a standard process of scaling your application. These include Digg, TripAdvisor, and the Hubble Space Telescope project. I’ve worked for a number of companies and projects that over time had to deal with massive levels of Web traffic. By knowing this, you can do only what you need at each phase of your project without “coding yourself into a corner”, ending up in a situation where it’s hard to take the next scalability step. Who knows what will happen and if your application will ever hit the traffic levels that require a scalability effort? But hopefully the most important lesson you can learn here is to understand what you will need to do to scale in the future. Now, that is not to say that you should spend a lot of effort in your early development process targeted at an unknown future. Ideally, you should be thinking about how your application is going to scale from the moment you first write code.
Logicworks 5 scaling how to#
This is the point where people often start thinking about how to scale their Website. Hopefully however, there always comes a time when your application starts to take higher traffic than originally expected. It’s fun, it’s exciting, and it’s what you are driven to do at that time. Tips for scaling your PHP-MySQL Web app based on real-world experiences at Digg, TripAdvisor, and other high-traffic sites.Ĭreating a Web application - actually writing the core code - is often the initial focus of a project.