prefix caching in llama.cpp

[mellowwire98]

This keeps coming up in conversation so I figured I'd start a thread.

The more I work with local setups, the more it seems like workstation thermals decides everything downstream.

Wondering if this is just where the whole space is heading now.

[thetagrid15]

I'd approach it in a boring order. If you're on Ollama, I'd confirm the version first and then reduce variables until the behavior is obvious. Not glamorous advice, but repeatable baselines save a lot of time.