> Of course, we tried debug builds too. Those cut the time down to ~5 minutes — but they’re not usable in practice. I wonder how true this is. Haven't use fel

> Of course, we tried debug builds too. Those cut the time down to ~5 minutes — but they’re not usable in practice. I wonder how true this is. Haven't use feldera but other rust stuff I have if I run as debug it has serious performance problems. However, for testing I have it compile a few crates that do work like `image` to be optimized (and the vast majority as debug) and that is enough to make the performance issues not noticeable. So if the multi-crate hadn't worked, possibly just only compile some of the stuff as optimized.