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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!newsfeed.direct.ca!portc01.blue.aol.com!portc02.blue.aol.com!howland.erols.net!news.bbnplanet.com!cam-news-hub1.bbnplanet.com!tezcat!gail.ripco.com!fred.net!usenet From: Roger Armstrong <mcurry@fred.net> Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: What is smallest swap file size possible? Date: Mon, 23 Dec 1996 23:11:34 -0500 Organization: FredNet - Frederick, Md. Lines: 35 Message-ID: <32BF57F6.F15@fred.net> References: <E208FH.L68@murdoch.acc.virginia.edu> <32A9022F.167EB0E7@freebsd.org> <597d2a$ion@uriah.heep.sax.de> <59ar9m$ecf@news.ziplink.net> <59m0uo$423@uriah.heep.sax.de> NNTP-Posting-Host: mcurry.fred.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01Gold (Win95; I) Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:33042 Joerg, didn't this discussion originally center around a firmware installation of FreeBSD? If so, is it not more reasonable to simply stipulate a big chunk of RAM (heck, what's 16MB among friends?) as a ramdisk, and make it a swap partition? Why cripple the OS in an attempt to do away with swap space? If I missed the point entirely...well, never mind! Mike J Wunsch wrote: > > mi@rtfm.ziplink.net (Mikhail Teterin) wrote: > > > I recall, there was a work going on to enable taking some devices > > OUT of the swap list... So that you can add some devices and later > > stop swaping on them dynamicly without a reboot. Currently, AFAIK, > > you can only go one direction -- adding. What is the status of this? > > Nothing new. The problem is that you can't simply ``swapoff'' it. > You either have to move all paged-out pages from the secondary storage > to another paging area, _and_ (and i think that's the bummer) change > all references pointing to this page to make it pointing to the new > backup storage. Alternatively, it might be possible to pick the SGI > Irix route, and use `swapoff' to only mark that paging area as ``no > longer to be used'', so it will slowly free up as the pages there are > being referenced. Needless to say, it can still take an indefinite > amount of time until it's actually freed up from all pages, so you > could finally ``umount'' it. > > -- > cheers, J"org > > joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE > Never trust an operating system you don't have sources for. ;-)