Date: Thu, 23 Sep 2004 12:52:32 +0200 From: Niels Heinen <niels.heinen@gmail.com> To: Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua> Cc: freebsd-hackers@freebsd.org Subject: Re: Copy data from kernel to user space memory Message-ID: <dea572790409230352698960d3@mail.gmail.com> In-Reply-To: <20040923101953.GA463@pm514-9.comsys.ntu-kpi.kiev.ua> References: <dea572790409230238858640@mail.gmail.com> <20040923101953.GA463@pm514-9.comsys.ntu-kpi.kiev.ua>
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> > I'm not sure that you get some performance with this method, usually > an application allocates memory, makes syscall and tells how many bytes > the kernel (the module) can store in this memory. But I don't see > the complete picture, so may be you can't use this standard approach. > Thats the way I have implemented it now. But because the application (test.c ;p ) doesn't know the packet size its currently using too large memory buffers. Thanks for the info, I'll have a look at those function ! Niels
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