Website developers care about the speed and performance of their website. But most of them don’t usually have enough time to properly optimize their websites. Below are easy steps which are time efficient and will improve a website’s performance.
PHP accelerator has been emphasized many times by different people because it is the first tool to use when you want to optimize your website (my favorite are APC and Zend Optimizer Plus). You should always keep in mind that the default configuration is not the fastest configuration. One feature of these extensions is that they make sure the cache is up to date by checking up on the file timestamp. Code can’t change immediately in a production situation; therefore, you can disable the feature. It will eliminate the slow fstat() calls; but an issue is that after every release, you will need to restart all your web servers.