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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!spool.mu.edu!howland.reston.ans.net!swrinde!gatech!news.mathworks.com!tank.news.pipex.net!pipex!demon!sunsite.doc.ic.ac.uk!peer-news.britain.eu.net!uknet!str-ccsun!not-for-mail From: nbc@vulture.dmem.strath.ac.uk (Neil Brendan Clark) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: 2 swap devices: does it make sense? Date: 15 Jan 1996 23:17:32 -0000 Organization: University of Strathclyde Lines: 12 Message-ID: <4denac$re@vulture.dmem.strath.ac.uk> References: <87u41zetl7.fsf@compi.hobby.nl> NNTP-Posting-Host: vulture.dmem.strath.ac.uk Peter Mutsaers <plm@compi.hobby.nl> wrote: >If I define 2 swap devices, each on a different disk, and I'm doing >heavy disk I/O: will both swap devices be used by FreeBSD 2.1 to >divide the disk I/O over the two disks? Swap devices are interleaved, so the answer is yes. How effective this strategy is would (I imagine) depend on your hard disks; for example, I am unsure how useful two IDE disks would be since CPU time is used by data transfers, but SCSI drives would give a definite improvement. At least, that is, if the world is a fair place ;-) Neil