[masklinn]

He's talking about iolists (concatenating strings for IO, which is the most common use case and the one needed for e.g. templates), not straight strings.

[klibertp]

I wonder how many times that's need to be said until it sinks in? This is the third time and I didn't even go through half of comments yet...

[jlouis]

Many times :)

writev() is hard to grasp.

[peerst]

Thats what not many realize, that iolists with binaries need never be pasted together. They are basically passed to the kernel with a writev