3 ms·

Back of the envelope calculation - A passenger instance for a typical small app takes 30-40 MB. You will be able to run 4-5 passenger instances on a small 512

by jagira 15y ago

Back of the envelope calculation - A passenger instance for a typical small app takes 30-40 MB. You will be able to run 4-5 passenger instances on a small 512 MB slice. Assuming that the slowest request in your app takes 100 ms, one passenger instance can handle 10 requests/sec. 5 instances can handle 50 requests/sec. Tweak the numbers according to your app and get a rough idea of the hardware requirements. A 512 MB VPS on Linode costs 20 dollars.

rauar 15y ago
+1 to the VPS for small (early) web apps. These VMs can handle more than one normally assumes. Especially if the load does not come in bursts. Running my app (https://addresspush.com https://addresspush.com) now since 9 months and the smallest slice with Apache and 2 balanced nodes works perfectly. 1 unnoticed down-time for a few hours. I bet that happens with cloud services as well (hi AWS!).