Date: Thu, 08 Jul 2004 11:35:32 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: ticso@cicely.de Cc: current@FreeBSD.org Subject: Re: speeding up ugen by an order of magnitude. Message-ID: <11354.1089279332@critter.freebsd.dk> In-Reply-To: Your message of "Thu, 08 Jul 2004 11:31:46 %2B0200." <20040708093145.GX12877@cicely12.cicely.de>
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In message <20040708093145.GX12877@cicely12.cicely.de>, Bernd Walter writes: >Can we do interleaving with physio? physio is just a way to avoid copyin/copyout. It maps & pins the space the user indicated in read(2) or write(2) into the kernel address space so that the kernel can access it directly. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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