Date: Wed, 21 Mar 2001 13:25:17 -0800 (PST) From: Matthew Jacob <mjacob@feral.com> To: Poul-Henning Kamp <phk@FreeBSD.ORG> Cc: arch@FreeBSD.ORG Subject: Re: remind me again, why is MAXPHYS only 128k ? Message-ID: <Pine.LNX.4.21.0103211323490.12896-100000@zeppo.feral.com> In-Reply-To: <88825.985208451@critter>
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Folks complained about some VM issues for trying to wire down a megabyte, etc. You sent me a suggestion as to how we could do specific device wiring w/o increasing MAXPHYS itself. That said, in NetBSD I've run 1024K MAXPHYS- you just have to make sure that the max buffer size doesn't track MAXPHYS 'coz you run out of memory rather quick. > > Are there any roadblocks for increasing MAXPHYS as a tweakable these > days, or is it still an "do not alter or ELSE..." #define ? > > -- > 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. > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-arch" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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