#11735: Optimize coercionKind -------------------------------------+------------------------------------- Reporter: goldfire | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | 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: | -------------------------------------+------------------------------------- Comment (by tdammers): Re-running my profiling job on a pristine machine without significant background noise gives me this: {{{ --- ./cases/Grammar.hs --- d74b37d565: 16.21 8ac966971e: 12.87 4eb140f564: 12.38 73a99750e1: 20.00 4572849929: 19.67 452dee3ff4: 256.07 --- ./cases/test_rules2.hs --- d74b37d565: 1.12 8ac966971e: 1.10 4eb140f564: 1.10 73a99750e1: 1.10 4572849929: 1.07 452dee3ff4: 1.03 }}} Again, with meanings: {{{ d74b37d565: simplCore improvements 8ac966971e: With NthCo Role caching 4eb140f564: Un-refactored 73a99750e1: Added some SCC's 4572849929: Simon's patch applied 452dee3ff4: baseline, GHC `master` before branching off }}} Which mostly confirms the earlier conclusions. The `test_rules2.hs` example seems to get worse as we proceed through the changes though. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11735#comment:54 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler