#12191: 7% allocation regression in Haddock performance tests -------------------------------------+------------------------------------- Reporter: bgamari | Owner: Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 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: -------------------------------------+------------------------------------- One of the commits below is responsible for a rather significant [[https://perf.haskell.org/ghc/#revision/d55a9b4fd5a3ce24b13311962bca66155b17a558|regression]] in the `haddock.Cabal` and `haddock.compiler` testcases, {{{ d55a9b4fd5a3ce24b13311962bca66155b17a558 0497ee504cc9ac5d6babee9b98bf779b3fc50b98 586d55815401c54f4687d053fb033e53865e0bf1 7de776cfe7825fca6a71fe6b3854c3c86bf9ca12 5cee88d766723929f789ffcd2ef24d8b5ef62a16 1dcb32ddba605bced2e0e0ce3f52b58e8ff33f5b 921ebc9f0854d033cbafd43d3b2c5ba679c27b3c e064f501d76c208ddab3c3be551ffe5167d7974f 8104f7c674d7ef2db0c25312f48763202dcef57f 599d912f0b85583e389661d85ed2f198e2621bb0 15fc52819c440f9e9b91ce92fcfda3c264cbe1c1 1f661281a23b6eab83a1144c43e464c0e2d2195a 35c9de7ca053eda472cb446c53bcd2007bfd8394 7afb7adf45216701e4f645676ecc0668f64b424d c28dde37f3f274a2a1207dd4e175ea79769f5ead 15b9bf4ba4ab47e6809bf2b3b36ec16e502aea72 }}} It would be nice to identify which of these is the culprit. The fix in `d55a9b4fd5a3ce24b13311962bca66155b17a558` will need to be applied on top of each of these to allow things to build. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12191 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler