#13535: vector test suite uses excessive memory on GHC 8.2 -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: highest | Milestone: 8.2.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): In particular, limiting GHC's memory to 4 GB is sufficient: {{{ $ bash -c 'ulimit -v 4000000; cabal test' ... Preprocessing test suite 'vector-tests-O2' for vector-0.12.0.1... [6 of 7] Compiling Tests.Vector ( tests/Tests/Vector.hs, dist/build /vector-tests-O2/vector-tests-O2-tmp/Tests/Vector.o ) tests/Tests/Vector.hs:9:1: warning: [-Wunused-imports] The import of ‘Data.Foldable’ is redundant except perhaps to import instances from ‘Data.Foldable’ To import instances alone, use: import Data.Foldable() | 9 | import Data.Foldable (Foldable(foldMap)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ tests/Tests/Vector.hs:25:1: warning: [-Wunused-imports] The import of ‘Data.Monoid’ is redundant except perhaps to import instances from ‘Data.Monoid’ To import instances alone, use: import Data.Monoid() | 25 | import Data.Monoid | ^^^^^^^^^^^^^^^^^^ tests/Tests/Vector.hs:29:1: warning: [-Wunused-imports] The import of ‘Data.Functor.Identity’ is redundant except perhaps to import instances from ‘Data.Functor.Identity’ To import instances alone, use: import Data.Functor.Identity() | 29 | import Data.Functor.Identity | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ tests/Tests/Vector.hs:438:5: warning: [-Wname-shadowing] This binding for ‘limitUnfolds’ shadows the existing binding imported from ‘Utilities’ at tests/Tests/Vector.hs:5:1-24 | 438 | limitUnfolds f (theirs, ours) | ^^^^^^^^^^^^ ghc: out of memory }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13535#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler