Ну и конечно вечеринка не может быть полной без http://developers.500px.com/2015/05/25/how-500px-serves-up-ov.... "The Resizer Service is fairly high throughput, with the cluster handling about 1000 requests per second during peak times. [...] at peak traffic we’re able to maintain a 95th percentile response time that is below 180 ms. We do this through the use of a really cool, really fast image processing library called http://www.vips.ecs.soton.ac.uk/index.php?title=VIPS, aggressive caching, and by optimizing like crazy. Outside of peak hours, we can usually get below 150 ms."
"The architecture of 500px can be thought of as a large Ruby on Rails monolith surrounded by a constellation of microservices.", хехе ‎- псы в рапиде