I want to test performance of particular extension I have installed in Magento store. I was thinking about the following method:
Backup live Magento store with 1000 products and 2000 orders to local wamp server. Disable cache and put at the end of index.php file the following:
Install the extension and refresh the page. The extension does all tasks on page refresh. The difference in memory_get_usage will tell me about performance for that extension.
Is that a reliable method, is there any better method?