#10482: Not enough unboxing happens on data-family function argument -------------------------------------+------------------------------------- Reporter: akio | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): The patch in comment:2 fixes the original bug report but gives perf failures on {{{
haddock.Cabal haddock.compiler
}}} Joachim says: I can confirm this, if you look at https://perf.haskell.org/ghc/ you see that that commit is the only in red Here is the report for that commit: https://perf.haskell.org/ghc/#revision/0b7e538a09bc958474ec704063eaa08836e92... and you can fetch the numbers from there, or from the full build log at https://raw.githubusercontent.com/nomeata/ghc-speed- logs/master/0b7e538a09bc958474ec704063eaa08836e9270e.log It looks very reproducible as well: https://perf.haskell.org/ghc/#graph/tests/alloc/haddock.Cabal;hl=0b7e538a09b... So we have to discover why this is happening. Sigh. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10482#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler