Make -threaded the default
Simon M writes back in 2016
Related to this, I think it's about time we made -threaded the default. We could add a -single-threaded option to get back the old behaviour.
There is a small overhead to using -threaded, but -threaded is also required to make a lot of things work (e.g. waitForProcess in a multithreaded program, not to mention parallelism).
All that needs doing is to add a flag -single-threaded to enable the old behaviour and a deprecation warning alerting uses that -threaded is the new default.
https://mail.haskell.org/pipermail/ghc-devs/2016-October/013101.html
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| Version | 8.6.3 |
| Type | Task |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
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