Date: Fri, 13 Jul 2001 18:37:48 -0400 From: David Gilbert <dgilbert@velocet.ca> To: Matt Dillon <dillon@earth.backplane.com> Cc: David Gilbert <dgilbert@velocet.ca>, Thierry Herbelot <thierry@herbelot.com>, Alfred Perlstein <bright@sneakerz.org>, hackers@FreeBSD.ORG Subject: Re: Swapping in diskless ? (was :Re: [hackers] Re: getting rid of sysinstall) Message-ID: <15183.30780.779907.874814@trooper.velocet.net> In-Reply-To: <200107132227.f6DMR8071313@earth.backplane.com> References: <bulk.72438.20010711142307@hub.freebsd.org> <Pine.BSF.4.21.0107121211060.35209-100000@www.bloodletting.com> <20010712143205.D4589@sneakerz.org> <3B4E1C69.A6DC0397@herbelot.com> <15182.63564.476492.390695@trooper.velocet.net> <3B4F3A22.EF2AC90A@herbelot.com> <15183.17942.995110.382797@trooper.velocet.net> <200107132227.f6DMR8071313@earth.backplane.com>
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>>>>> "Matt" == Matt Dillon <dillon@earth.backplane.com> writes: Matt> Right, you only need swap to be able to flush dirty pages. Matt> Clean code (and even clean data) pages are simply dropped and Matt> reloaded from the disk image later on if needed again. With Matt> careful program management you can run without swap. Matt> Also, do performance testing with dynamic-linked verses Matt> static-linked binaries. Static-linked binaries may look larger, Matt> but they have a much lower dirty-page overhead then the Matt> dynamically linked equivalent. It depends on the situation but Matt> it is definitely worth testing. Is it not possible (or has nobody done it) to swap with the current diskless boot? Of all people, I would have expected Matt to be able to help :). I have quite a few systems netbooting using etherboot floppies (incidentally running 3.4) ... and they use NFS swap just fine. I would really like the same thing with the PXE boot. Is it possibly as simple as making pxeboot ignore the swap DHCP tag? Does anyone here hack pxeboot? Dave. -- ============================================================================ |David Gilbert, Velocet Communications. | Two things can only be | |Mail: dgilbert@velocet.net | equal if and only if they | |http://www.velocet.net/~dgilbert | are precisely opposite. | =========================================================GLO================ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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