This depends on what you mean by &quot;with&quot;. As you say, you can&#x27;t sit down, bang out some ordinary Haskell code, and expect GHC to give you an executable that will do real-time as well as you can in C.<p>That said, it&#x27;s perfectly possible to write a DSL that handles scheduling, uses GHC&#x27;s type machinery to track memory use and execution time, and have GHC generate a program that will generate C code that meets <i>hard</i> real-time guarantees.  In fact, someone wrote it, it&#x27;s available on hackage (<a href="https:&#x2F;&#x2F;hackage.haskell.org&#x2F;package&#x2F;atom" rel="nofollow">https:&#x2F;&#x2F;hackage.haskell.org&#x2F;package&#x2F;atom</a>) and my understanding is that it&#x27;s used in production for control software in the auto industry.