#9370: large blowup in memory usage and time when doing parallel build of xmlhtml package -------------------------------------+------------------------------------- Reporter: carter | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.8.3 Resolution: | Keywords: parmake Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: Compile- | Blocked By: time performance bug | Related Tickets: #910 #9221 Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by simonpj): That's bizarre. I can't think why the the simplifier would do ''anything'' different with `-j1` vs `-j4`! I'm hard pressed even to see where to start. Is it possible to determine when the log files start to differ? They should be identical except for the uniques (which you can suppress with `-dsuppress-uniques`). Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9370#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler