weigh
Measure allocations of a Haskell functions/values
https://github.com/fpco/weigh#readme
| LTS Haskell 23.27: | 0.0.18 |
| Stackage Nightly 2025-07-13: | 0.0.18 |
| Latest on Hackage: | 0.0.18 |
BSD-3-Clause licensedbyChris Done
Maintained by[email protected]
This version can be pinned in stack with:
weigh-0.0.18@sha256:78b183a32f86b216db889965da1c67992263040f440ad71d65e4454c36a6dba1,1214Module documentation for 0.0.18
Depends on 7 packages(full list with versions):
weigh
Measures the memory usage of a Haskell value or function
Limitations
- :warning: Turn off the
-threadedflag, otherwise it will cause inconsistent results.
Example use
import Weighmain :: IO ()main = mainWith (do func "integers count 0" count 0 func "integers count 1" count 1 func "integers count 10" count 10 func "integers count 100" count 100) where count :: Integer -> () count 0 = () count a = count (a - 1)Output results:
| Case | Allocated | GCs |
|---|---|---|
| integers count 0 | 16 | 0 |
| integers count 1 | 88 | 0 |
| integers count 10 | 736 | 0 |
| integers count 100 | 7,216 | 0 |
Output by default is plain text table; pass--markdown to get amarkdown output like the above.