Date: 8 Feb 2018 22:31:02 -0500 From: "John Levine" <johnl@iecc.com> To: freebsd-questions@freebsd.org Cc: kremels@kreme.com Subject: Re: Swap on SSD Message-ID: <20180209033102.A8EF11A74673@ary.qy> In-Reply-To: <99D367C9-ADF4-41EB-8D4F-5D5F3B0C7ABF@kreme.com>
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In article <99D367C9-ADF4-41EB-8D4F-5D5F3B0C7ABF@kreme.com> you write: >>> Should the installer then be creating a dedicated swap partition? It >>> seems not. >> >> Yes of course it should, it's the place where pages that aren't >> backed by storage can be written to when needed. > >That seems easily solved (just as well) by a swapfile. FreeBSD lets you have either or both, but a swap partition is faster. If you use a swap partition, block N is at disk location B+N where B is the base of the partition. If you use a swapfile, you have inodes and indirect blocks and such, so random access to a large swapfile might have to read one or two overhead blocks for every swap block.
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