[arussellsaw]

worth mentioning that this is only a noticeable performance regression in situations where the majority of the request is spent in http processing, eg 'hello world' handlers. Here is an example of the performance improvements i've seen in a real world application, admittedly heavily GC bound, but still the performance improvements are considerable: https://twitter.com/arussellsaw/status/819904231759085571

[Cthulhu_]

This is the real benchmark - compare performance with real, working software instead of microbenchmarks that show a small regression (okay a fairly big one in terms of percentage) on a very specific and unrealistic use case.

I'd take 20 us performance degradation in one specific slice of code over a 50% performance increase overall any day.

edit: english in the previous sentence is bad. You know what I mean. Small regression is fine if the overall speed is much better.