Messages in this thread | | | From | "Nakajima, Jun" <> | Subject | RE: Machine's high load when HIGHMEM is enabled | Date | Mon, 4 Nov 2002 11:49:26 -0800 |
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Also try to disable BIOS remapping in the BIOS setup menu, if any. I know some BIOS that forgot to reset the proper memory attribute in the MTRR(s) after the remapping.
Jun
> -----Original Message----- > From: Andrew Morton [mailto:akpm@digeo.com] > Sent: Monday, November 04, 2002 11:28 AM > To: vasya vasyaev > Cc: linux-kernel@vger.kernel.org > Subject: Re: Machine's high load when HIGHMEM is enabled > > vasya vasyaev wrote: > > > > Hello, > > > > First of all - thanks to these people, who responded > > to my question. > > > > I have some news... > > > > I've tried kernels: > > 2.4.19 - the same result > > 2.5.44 - the same result > > 2.5.45 - the same result > > > > If I take 1 Gb of memory away, then computer works > > much better, faster (something like without enabled > > HIGHMEM at all). > > The same effect takes place if I say mem=1024M while > > physically box has 2Gb of RAM - everything is fine! > > But if I start HIGHMEM enabled kernel on this box (2Gb > > RAM), then it works too slowly... > > > > Please ensure that the mtrr driver is enabled in kernel config, > boot with mem=2G and send the output of `cat /proc/mtrr'. > > Also, `dmesg | head -120' would be interesting. > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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