7% of the overall runtime spent in `SelectableEventLoop.debugDescription`

[weissi]

Just noticed that when just running loads of sequential super basic HTTP requests against a fast server (NIOHTTP1Server), we spent about 7% of the overall runtime in HTTP1ClientChannelHandler.request.setter which spends most of its time in _print_unlocked<A, B>(_:_:) because it's pulling a debugDescription for EventLoop for the logger metadata :P (release mode compile of course)

Should be an easy fix.

async-http-client/Sources/AsyncHTTPClient/ConnectionPool/HTTP1/HTTP1ClientChannelHandler.swift

Line 39 in 54d1006

requestLogger[metadataKey: "ahc-el"] = "\(self.eventLoop)"

FWIW, the super basic perf test I used is this: weissi@bf7dbeb (this code isn't meant to be merged).

[Lukasa]

Should have been resolved by #772.