Earlier quoted context omitted.
Wikipedia is hosted on ordinary rackmount servers at a handful of colocation facilities: https://meta.wikimedia.org/wiki/Wikimedia_servers It does not significantly use cloud services, and as you can see by the picture of their racks, they use standard 1 RU pizzaboxes. Their workload is highly scalable horizontally, and doesn't even need much in the way of expensive "enterprise" hardware such a SAN arrays: https://up…
> It does not significantly use cloud services They do host their own private "cloud", mostly used for research and project development. > English Wikipedia gets about 250M page views per day, which is only about 3,000 per second. If they used an efficient language instead of PHP, that's well within the capability of a single modern server! Nitpicking, page views from outside users are not supposed to hit PHP at all…
The new parser is being rewritten in php in order to be integrated with the rest of the php code.