Date: Fri, 17 Dec 2010 20:36:03 +0100 From: Gary Jennejohn <gljennjohn@googlemail.com> To: freebsd-x11@FreeBSD.ORG Cc: olli@lurza.secnetix.de Subject: Re: Intel G41 graphics are slow while memory runs in dual channel mode. Message-ID: <20101217203603.27ec270e@ernst.jennejohn.org> In-Reply-To: <201012171742.oBHHgAJU054928@lurza.secnetix.de> References: <20101217163941.19b6b5e6@ernst.jennejohn.org> <201012171742.oBHHgAJU054928@lurza.secnetix.de>
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On Fri, 17 Dec 2010 18:42:10 +0100 (CET) Oliver Fromme <olli@lurza.secnetix.de> wrote: > Gary Jennejohn wrote: > > I doubt this has anything to do with dual-channel memory. More likely > > is that you're trying to use 4GiB with i386, which can cause all kinds > > of problems. > > > > You have two options, as fas as I can tell > > 1) run amd64, which can use the full 4GiB of memory > > 2) set hm.physmem to 3G (or maybe a little more) in /boot/loader.conf > > Are you sure that the second option has any effect? > I also run i386 on two different boxes that have 4 GB RAM, > and hw.physmem is set to 3.something automatically: > > olli@hexagon:~> sysctl hw.physmem; uname -rsm > hw.physmem: 3474989056 > FreeBSD 8.1-STABLE-20100908 i386 > > olli@atom:~> sysctl hw.physmem; uname -rsm > hw.physmem: 3740434432 > FreeBSD 8.1-PRERELEASE-20100620 i386 > > I haven't touched hw.physmem on these machines myself. > Both boards have 2 x 2GB DIMMs. The former is an ASUS > M4A88TD-V EVO/USB3, the latter is an ASRock A330GC. > Well, maybe something has changed in the kernel since the last time I had to do it. I'm now using amd64 on all my machines, so I don't really have to think about it anymore. -- Gary Jennejohn
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