@@ -68,7 +68,7 @@ where
6868
6969-- MVar diagnostics has some overhead - around 5% on asyncly null benchmark,
7070-- but keep it on for now to debug problems quickly if and when they happen.
71−-- define DIAGNOSTICS
71+#define DIAGNOSTICS
7272
7373import Control.Concurrent (ThreadId, myThreadId, threadDelay)
7474import Control.Concurrent.MVar (MVar, newEmptyMVar, tryTakeMVar,