[pjdesno]

> I’m curious what the performance of this implementation is

Almost certainly crap.

As the author states, it's a simple fork-on-request server, which was state-of-the-art in about 1996. But that's not the point.

[jubilanti]

And that wasn't the question the parent comment asked.

[tredre3]

The parent asked two questions:

1. What is the performance of this implementation of an assembly server? The comment you replied to answered it: It's likely crap. Hand written assembly is almost always worse than compiler.

2. How much performance can a human still squeeze out at the assembly level? That question is different and remains unanswered. But in my experience the answer is the same.