interpreter: sequence_ (replicate 100000000 (return ())) gobbles up memory
I consider this to be more of a curiosity than a bug, but it might still be worth investigating. The following line,
sequence_ (replicate 100000000 (return ()))causes ghci to grow quite big (here it's 6GB on 64 bit Linux; it's roughly proportional to the 100000000 number).
This used to be better in ancient times--before version 8.0.1, ghci ran this code in what looks like constant memory.
(This came up indirectly on #haskell; somebody had adapted Hutton's game of life program, http://www.cs.nott.ac.uk/\~gmh/life.lhs which uses busy waiting for a delay.)
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.4.3 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | low |
| Resolution | Unresolved |
| Component | GHCi |
| Test case | |
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