Search around on Google Docs for my 2018 treatise/rant about how the TI Envelope was the least-efficient program anyone had ever deployed at Google.
I'm a xoogler so I don't have access. Do you have a TL;DR that you can share here (for non-Googlers)?
Ok, now it sounds like you're blaming unix sockets for someone's shitty code...
No idea what "TI Envelope" is, and a Google search doesn't come up with usable results (oh the irony...) - if it's a logging/metric thing, those are hard to get to perform well regardless of socket type. We ended up using batching with mmap'd buffers for crash analysis. (I.e. the mmap part only comes in if the process terminates abnormally, so we can recover batched unwritten bits.)