[Ur] TechEmpower Benchmarks

[escalier at riseup.net]

I suppose I should have said "obvious changes that may turn out to be
improvements".

> I'm curious how involving Nginx could improve performance

In my rather brief and inexpert tests, Ur/Web + lighttpd had about 70% of
pure Ur/Web performance.

> I've pushed a changeset to avoid all database operations for page
> handlers that don't need the database.

Wow. Dramatic improvement here too.

If I make a dubious extrapolation, (new local)/(old local) = (hypothetical
new i7)/(old i7), the hypothetical i7 performance I get on JSON
serialization, for example, is ~47,000. That would be around 75% of Yesod
performance (which I have supposed to be the framework most analogous to
Ur/Web).