[GHC] #14258: n-body runtime regressed badly due to CoreFVs patch
#14258: n-body runtime regressed badly due to CoreFVs patch -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Runtime Unknown/Multiple | performance bug Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- While looking through nofib numbers I noticed that `n-body` regressed in runtime by around 20% due to 751996e90a964026a3f86853338f10c82db6b610. Yikes! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14258 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14258: n-body runtime regressed badly due to CoreFVs patch -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): I should note that there was no corresponding change in allocations. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14258#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14258: n-body runtime regressed badly due to CoreFVs patch -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Resolution: duplicate | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #13570 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: new => closed * resolution: => duplicate * related: => #13570 Comment: Oh dear; I just remembered that this was already reported some months ago as #13570. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14258#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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