Quoting des_at_des.no (Dag-Erling Smørgrav) (Mon, 08 May 2006 05:13:00 +0200): > We don't want to use floating point within the kernel, for a variety > of reasons (one of them being that saving and restoring the floating > point context when switching in and out of the kernel is very > expensive). FYI... The patches which port the revamped FPU handling from DFly don't have this expensive behavior for every switch. AFAIR only when the kernel used the FPU some context is saved. It also allows to use SIMD instructions in the kernel (this may be beneficial in some places). Bye, Alexander. -- Press every key to continue. http://www.Leidinger.net Alexander _at_ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7 WL http://www.amazon.de/exec/obidos/registry/1FZ4DTHQE9PQ8/ref=wl_em_to/Received on Mon May 08 2006 - 09:26:42 UTC
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