
#9221: (super!) linear slowdown of parallel builds on 40 core machine -------------------------------------------------+------------------------- Reporter: carter | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.8.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time performance bug | Unknown/Multiple Test Case: | Difficulty: Blocking: | Unknown | Blocked By: | Related Tickets: -------------------------------------------------+------------------------- Comment (by carter): so my understanding is that the parUpsweep function in compiler/main/GhcMake.hs is the main culprit / object to focus on for this performance issue, right? (literally the only thing thats tripped the the -jN ghc invocation ) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9221#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler