#13492: -p option report much less time than actual on high intensity of FFI calls application -------------------------------------+------------------------------------- Reporter: varosi | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Profiling | Version: 8.5 Resolution: | Keywords: Operating System: Windows | Architecture: x86_64 Type of failure: Debugging | (amd64) information is incorrect | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by osa1): * cc: simonmar, osa1 (added) * version: 8.0.2 => 8.5 Comment: I recently needed this and ended up using event logs as profiler did not help because of this issue. Unfortunately event logs also have its problems (e.g. can't load events for a few minutes because ghc-events requires more than 32G RAM for that...), so this feature would still be useful. See also the recent Haskell-cafe questions on this [https://mail.haskell.org/pipermail/haskell-cafe/2018-August/129818.html here] and my response [https://mail.haskell.org/pipermail/haskell- cafe/2018-August/129820.html here]. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13492#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler