Date: Sat, 10 Mar 2007 09:49:53 -0800 From: "Kip Macy" <kip.macy@gmail.com> To: Maslan <maslanbsd@gmail.com> Cc: freebsd-hackers@freebsd.org, cokane@cokane.org Subject: Re: Floating-point in kernel space Message-ID: <b1fa29170703100949h5f15d74cxfc1bfe08169012d1@mail.gmail.com> In-Reply-To: <319cceca0703100946r624a461dl267e20f43af85664@mail.gmail.com> References: <319cceca0703090116p7e768630qd055be57bbe4953@mail.gmail.com> <200703091021.l29ALLVw067285@lurza.secnetix.de> <346a80220703091044p5759e6do521065203299c26b@mail.gmail.com> <319cceca0703100946r624a461dl267e20f43af85664@mail.gmail.com>
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On 3/10/07, Maslan <maslanbsd@gmail.com> wrote: > > It would be helpful to know why you need this support as well > > I just wanted to know the idea behind not having FP in kernel-space. Saving and restoring FPU registers adds overhead to thread context switching and there has never been a legitimate need for it. -Kip
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