#15938: Hadrian's recompilation check is extremely slow -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.8.1 Component: Build System | Version: 8.6.2 (Hadrian) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by tdammers): Replying to [comment:10 bgamari]:
tdammers, how long did you let the build run for before aborting it?
I made multiple attempts from a freshly git-cleaned tree, aborting at various points during library compilation. A rebuild after any of these started to produce output within under 2 seconds, and started to perform actual compilation within 3 seconds. There is a significant delay (on the order of ~5-7 seconds) on the "Configure package 'ghc'" step, but nowhere near the reported 15-45 seconds. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15938#comment:20 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler