I have Symfony2 running on an Ubuntu Server 12.04 (64-bit) VM (VirtualBox). The host is a MacBook pro. For some reason I am getting really long request times in developmen
I had problems as well with slow page loads in development, which can extremely frustrating when you're tweaking CSS or something similar.
After a bit of digging I found that for me the problem was caused by Assetic which was recompiling all assets on every page load:
http://symfony.com/doc/current/cookbook/assetic/asset_management.html#dumping-asset-files-in-the-dev-environment
By disabling the use of the Assetic controller I was able to drastically increase my page load. However, as the link above states, this comes at a cost of regenerating your assets whenever you make a change to them (or set a watch on them).