#11054: GHC on Windows could not use more than 64 logical processors -------------------------------------+------------------------------------- Reporter: varosi | Owner: Type: feature request | Status: new Priority: normal | Milestone: 8.2.1 Component: Runtime System | Version: 7.10.2 Resolution: | Keywords: Operating System: Windows | Architecture: x86_64 Type of failure: Runtime | (amd64) performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #12602 | Differential Rev(s): Phab:D2533 Wiki Page: | -------------------------------------+------------------------------------- Comment (by varosi): Task manager on Windows 10 shows NUMA nodes and logical cores separated. So both NUMA nodes are taken by 85-88%. On logical cores, there about 10 from 88 cores not used for some reason. They are near zero CPU usage. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11054#comment:39 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler