#8224: Excessive system time -- new IO manager problem? -------------------------------------+------------------------------------- Reporter: rrnewton | Owner: Type: bug | Status: new Priority: high | Milestone: 7.8.1 Component: Runtime System | Version: 7.7 Resolution: | Keywords: IO Manager, Operating System: Linux | System Time Type of failure: Runtime | Architecture: x86_64 (amd64) performance bug | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- Comment (by thoughtpolice): I haven't tested this (don't have a 32 core machine,) but if the `gcWorkerThread` is causing problems, what does it look like when you turn off the multicore collector and load balancer? i.e. run with: {{{ $ ./excessive_system +RTS -N -qb -qg }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8224#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler