hey I'm from the SWE-grep team - feel free to ask me any questions :)
idk what you expect from a question about "how much data". its tool based search. its a lot.
One of my side projects is a full text index for pattern search, and I'm trying to understand how it might fit with that. You mention tool call overhead, but is that a significant part of the latency in the multi-turn scenario, or is it the coding agent being forced into a serial processing pattern?
for another take on latency attribution see https://x.com/silasalberti/status/1979310181424206143