The clever folks at Caucho are quick to point out that Quercus is 3x-5x faster than straight mod_php (without APC). But digging deeper in the documentation, you'll see that the PHP-to-bytecode compilation is only available in Resin Pro ($699).
What I'd like to know is, how fast (i.e. how slow) is Resin Open Source for executing PHP code?
Yes I know I could just test it, it depends on the application, it depends on the environment, blah blah blah. But I just need a single anecdotal data-point from anyone who's done it before, whether it's statistically significant or not... doesn't matter!