#14974: 2-fold memory usage regression GHC 8.2.2 -> GHC 8.4.1 compiling `mmark` package -------------------------------------+------------------------------------- Reporter: hvr | Owner: davide Type: bug | Status: new Priority: high | Milestone: 8.8.1 Component: Compiler | Version: 8.4.1 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 davide): With -ddump-core-stats the final **core size** of the Text.MMark.Parser module has not changed significantly, though the number of **coercions has decreased**: * GHC Version: terms,types,coercions * 8.2.2: 325846 296315 33104 * 8.4.1: 344903 300944 26870 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14974#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler