Date: Sat, 06 Jul 2002 14:37:02 -0700 From: Darren Pilgrim <dmp@pantherdragon.org> To: ticso@cicely.de Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: How does swap work address spacewise? Message-ID: <3D2762FE.9D9E0378@pantherdragon.org> References: <20020705113532.GA11273@atrbg11.informatik.tu-muenchen.de> <20020705133515.GA295@HAL9000.wox.org> <20020705133837.GA513@HAL9000.wox.org> <20020705234126.GA12183@atrbg11.informatik.tu-muenchen.de> <3D2640A7.3EA2236B@pantherdragon.org> <20020706020656.GL48977@cicely5.cicely.de>
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Bernd Walter wrote: > On Fri, Jul 05, 2002 at 05:58:15PM -0700, Darren Pilgrim wrote: > > If RAM + swap can be more than 4GB, how does FreeBSD address swap on a > > 32-bit machine? Does the kernel internally use a wider address space > > The same way it does on every partitition: using block numbers. > That way you can address 1TByte. I thought the limit for filesystems was 2TB? > And you can have more than a single swap partition. Up to four, so then the theoretical limit for swap is 8TB? > In reality managementstructures which have to be in kernel addressspace > is limiting swap before. Do these management structures grow as swap grows, or do they only change as the utilization increases? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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