Date: Wed, 07 Jul 2004 11:16:14 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: ticso@cicely.de Cc: FreeBSD current users <current@freebsd.org> Subject: Re: speeding up ugen by an order of magnitude. Message-ID: <33631.1089191774@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 07 Jul 2004 11:13:12 %2B0200." <20040707091311.GE12877@cicely12.cicely.de>
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In message <20040707091311.GE12877@cicely12.cicely.de>, Bernd Walter writes: >On Tue, Jul 06, 2004 at 04:32:28PM -0700, Julian Elischer wrote: >What about those options: >- limit the allocated memory to the user request so we don't take the > whole 128k if not reuired. >- Do interleaving with 2 or more xfers if the read request is known to > take more xfers. I would consider ugen to be a primary candidate to use physio like I belive scsi-tape drives do ? -- 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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