Netty optimizations + fastjson2

[doxlik]

Hello dear TechEmpower team.

Here I want to add alternative test based on Netty Java framework, but utilizing more aggressive optimizations similar to plaintext top tier players and also utilize fastjson2 lib for json serilization.

I passed verification using "sudo ./tfb --test netty-fast --mode verify"

P.S. This test has no purpose to show that original netty test is bad, on the contrary, it based on it, but adds some maximum possible optimizations + alternative json library.

[franz1981]

I won't do this.
Two reasons:

• this is very very unrealistic and not prod ready (it's not a secure http 1.1 parser)
• check how we do it right now using SWAR (and indexOf(byte)) in Netty itself

Netty is already low level and I see little benefits to show that if you reduce the parsing cost (increasing it's security risk exposure), it would cost less, since is an expected tradeoff of any framework (unless slow for unrelated reasons).

[doxlik]

I will think about utilizing the real parser to increase reality if I succeed I will push it here, if not will delete PR.

[franz1981]

The real parser would work only if you have a bespoke beader map (likely)? Which won't hold any header string based obj

[doxlik]

@franz1981 is it better now? Utilized official decoder but preserved custom response writing.

[franz1981]

I haven't tried to debug it but tbh I don't such difference with the existing netty code..
I will take a better look while back from holidays next year 🙏

[doxlik]

You know, I think you are right. Not so much changes, so better will close PR.