#7719: System.Timeout.timeout may leak <<timeout>> exceptions -------------------------+-------------------------------------------------- Reporter: int-e | Owner: Type: bug | Status: new Priority: normal | Component: libraries/base Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: None/Unknown | Blockedby: Blocking: | Related: -------------------------+-------------------------------------------------- Comment(by int-e): So I have some numbers using Bas van Dijk's benchmarks (negative speedups are slowdowns): {{{ Benchmark speedup (%) NT T1 T2 T3 NT = non-threaded willTimeout -5 34 0 -1 T1 = threaded, -N1 wontTimeout -16 68 82 82 T2 = threaded, -N2 busyWillTimeout 6 98 94 95 T3 = threaded, -N3 busyWontTimeout -7 68 79 76 externalException 0 2 4 1 (Athlon II X3 445, nestedTimeouts 0 0 0 x86-64 Linux) }}} I'll attach the benchmark code but beware that compiling criterion on ghc's head currently requires patching 7 packages, mostly for the {{{Typeable}}} changes. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7719#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler