FreeBSD 10.3 Officially Released With Much Better Linux Binary Compatibility

[nasyt]

CDNs usually use plenty of IPs all around the globe and may also use plenty of hostnames (e.g. one host per customer). Generally they do not try to look like one big server.

...or even worse, multiple hostnames per website. Linux is obviously not made for big server.

[SystemCrasher]

...or even worse, multiple hostnames per website. Linux is obviously not made for big server.

Huge servers are obsolete, mainframes golden age is long over. These relics of the past still used being used in some places. But there is problem. After some point it is really difficult to scale single system. So it getting expensive while failing to provide adequate performance. Ironically, Linux both holds its record in Top 500 list of supercomputers and is able to run on e.g. IBM mainframes, proving your claims somewhat untrue.

Still, these days largest systems serving users are usually distributed. It makes scaling cheap and simple, as well as solving plenty of problems, be it eliminaion of single point of failure or improving latency. Whatever, bunch of commodity servers is cheap and does its job well. It could take some extra layer on top of it to get it to behave, but it is much easier and cheaper compared to attempts to scale single system indefinitely.