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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!nntp.coast.net!howland.erols.net!www.nntp.primenet.com!nntp.primenet.com!nntp.uio.no!news.apfel.de!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: What is smallest swap file size possible? Date: 23 Dec 1996 13:20:24 GMT Organization: Private BSD site, Dresden Lines: 24 Message-ID: <59m0uo$423@uriah.heep.sax.de> References: <E208FH.L68@murdoch.acc.virginia.edu> <32A9022F.167EB0E7@freebsd.org> <597d2a$ion@uriah.heep.sax.de> <59ar9m$ecf@news.ziplink.net> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.6 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:33010 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. ;-)