Date: Wed, 1 Jun 2005 21:09:16 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: "Greg 'groggy' Lehey" <grog@freebsd.org> Cc: freebsd-amd64@freebsd.org Subject: Re: swap sizing Message-ID: <20050601204959.R95875@delplex.bde.org> In-Reply-To: <20050531034009.GM10912@wantadilla.lemis.com> References: <20050530090525.246b0c35.kgunders@teamcool.net> <20050531113955.D91505@delplex.bde.org> <20050531024206.GK10912@wantadilla.lemis.com> <20050531133318.R1603@epsplex.bde.org> <20050531034009.GM10912@wantadilla.lemis.com>
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On Tue, 31 May 2005, Greg 'groggy' Lehey wrote: > On Tuesday, 31 May 2005 at 13:35:38 +1000, Bruce Evans wrote: >> On Tue, 31 May 2005, Greg 'groggy' Lehey wrote: >> >>> On Tuesday, 31 May 2005 at 11:48:19 +1000, Bruce Evans wrote: >>>> On Mon, 30 May 2005, Ken Gunderson wrote: >>>>> And of course that you need at least as much swap as ram if you >>>>> want to get a full dump... >>>> >>>> Of course not. The dump can be written to any disk device that you >>>> don't care about overwriting. >>> >>> Sure. And, apart from swap, what would that be? Why not use it >>> for swap while you're not dumping to it? >> >> Because if swap is configured than it might be used. > > Well, I said "use", not "configure". If it is configured, then its use will be decided by the vm system. I think I know better than the vm system whether its use is useful on my systems. The vm system can only adjust for transient loads better but I think I have enough memory for transients to not be a problem. (I normally have hundreds of MB to spare and this gets used for disk caching; transiently it is used for programs and the disk cache gets depleted a bit.) Bruce
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