Date: Fri, 17 Aug 2007 17:51:03 -0500 From: "Rick C. Petty" <rick-freebsd@kiwi-computer.com> To: Dag-Erling Sm??rgrav <des@des.no> Cc: freebsd-fs@freebsd.org, Gore Jarold <gore_jarold@yahoo.com> Subject: Re: vfs.ufs.dirhash_maxmem ... how high can I go ? Message-ID: <20070817225103.GA92437@keira.kiwi-computer.com> In-Reply-To: <867inuibu4.fsf@ds4.des.no> References: <723681.52797.qm@web63012.mail.re1.yahoo.com> <20070817020201.GA41414@keira.kiwi-computer.com> <867inuibu4.fsf@ds4.des.no>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, Aug 17, 2007 at 02:29:07PM +0200, Dag-Erling Sm??rgrav wrote: > "Rick C. Petty" <rick-freebsd@kiwi-computer.com> writes: > > Gore Jarold <gore_jarold@yahoo.com> writes: > > > I have 4 GB of physical and 4 GB of swap, running on normal 32-bit > > > x86, and I have this set as well: > > Which means (on an x86 system) that you have 3 GB of physical RAM. > > No, it means has 4 GB of physical RAM, of which 3.5 GB are addressable. I've never seen FreeBSD address more than 3.0 GB of RAM without PAE.. it always seems to reserve 1.0 GB for video & other mmap'd I/O. I've tried this in systems with 4 MB video cards and most devices disabled. I thought you had to tweak some sysctl in freebsd to force the kernel not to map that last 1 GB. -- Rick C. Petty
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070817225103.GA92437>