Not that it&#x27;s a bad article (lots of nice detail in there), but the short version of this is: if you&#x27;re web-serving disk-scale things, use a web server that&#x27;s designed to serve from disk. If you&#x27;re web-serving memory-scale things, you can use a memory-based web server. Even if you think you&#x27;re just &quot;caching&quot;.