Re:Ask HN: Why isn't there Just-in-Time hardware?
by GrumpyYoungMan on Friday March 13, 2026 @11:56AM
(#47366162)
> "FPGAs reconfigured during program execution to speed up hot paths"
The IEEE conference on Field-Programmable Custom Computing Machines (https://www.fccm.org/) is in its 34th year, to give you an idea of how old that idea is. The answer to your question is both 1 and 2 and also 3. that FPGAs have rather poor efficiency, both in terms of cost and performance, so it's not worthwhile outside of a few niches.
The IEEE conference on Field-Programmable Custom Computing Machines (https://www.fccm.org/) is in its 34th year, to give you an idea of how old that idea is. The answer to your question is both 1 and 2 and also 3. that FPGAs have rather poor efficiency, both in terms of cost and performance, so it's not worthwhile outside of a few niches.