#9315: Weird change in allocation numbers of T9203 -------------------------------------+------------------------------------- Reporter: nomeata | Owner: simonmar Type: bug | Status: new Priority: normal | Milestone: Component: Runtime | Version: 7.9 System | Keywords: Resolution: | Operating System: Unknown/Multiple Differential Revisions: | Type of failure: None/Unknown Architecture: | Test Case: Unknown/Multiple | Blocking: Difficulty: Unknown | Blocked By: | Related Tickets: | -------------------------------------+------------------------------------- Comment (by jrp): Running with the validate settings (ie, running validate) I get all the performance tests to pass other than: {{{ =====> T4801(normal) 1987 of 4045 [0, 0, 0] cd ./perf/compiler && '/Users/jrp/Projects/haskell/ghc/inplace/bin/ghc- stage2' -fforce-recomp -dno-debug-output -no-user-package-db -rtsopts -fno-ghci-history -c T4801.hs +RTS -V0 -tT4801.comp.stats --machine- readable -RTS -static >T4801.comp.stderr 2>&1 max_bytes_used value is too low: (If this is because you have improved GHC, please update the test so that GHC doesn't regress again) Expected T4801(normal) max_bytes_used: 25145320 +/-5% Lower bound T4801(normal) max_bytes_used: 23888054 Upper bound T4801(normal) max_bytes_used: 26402586 Actual T4801(normal) max_bytes_used: 23720120 Deviation T4801(normal) max_bytes_used: -5.7 % peak_megabytes_allocated value is too low: (If this is because you have improved GHC, please update the test so that GHC doesn't regress again) Expected T4801(normal) peak_megabytes_allocated: 70 +/-1% Lower bound T4801(normal) peak_megabytes_allocated: 69 Upper bound T4801(normal) peak_megabytes_allocated: 71 Actual T4801(normal) peak_megabytes_allocated: 68 Deviation T4801(normal) peak_megabytes_allocated: -2.9 % bytes allocated value is too low: (If this is because you have improved GHC, please update the test so that GHC doesn't regress again) Expected T4801(normal) bytes allocated: 464872776 +/-5% Lower bound T4801(normal) bytes allocated: 441629137 Upper bound T4801(normal) bytes allocated: 488116415 Actual T4801(normal) bytes allocated: 415645496 Deviation T4801(normal) bytes allocated: -10.6 % *** unexpected failure for T4801(normal) }}} This is on OS X with the master HEAD -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9315#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler