On Feb 21, 2010, at 06:27 , Donghee Nah wrote:
I'm using Windows 7 32bit Host OS(ghc 6.8.3) and Virtualbox Archlinux Guest OS(ghc 6.8.4) I feel that ghci code executing speed in guest os is 1.5~2x faster than host os
My guess is that GHC (and the GHC RTS) on win32 is using a POSIX emulation layer supplied by mingw32 for all system calls, introducing extra overhead. Unfortunately, I don't think we have enough Windows- familiar folks with enough understanding of the GHC RTS to optimize it for the native Windows API.
-- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [email protected] system administrator [openafs,heimdal,too many hats] [email protected] electrical and computer engineering, carnegie mellon university KF8NH
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