On Saturday 08 February 2003 11:47 am, Gregory K. Meyer, CPA wrote: > On Saturday 08 February 2003 11:38 am, Gregory K. Meyer, CPA wrote: > > On Saturday 08 February 2003 11:24 am, Russ wrote: > > > Hi All, > > > > > > I understand that the swap partition should be about twice that of your > > > physical ram. I have 256megs and when I allow MD to partition itself, > > > that is the size of the swap partition it makes. Shouldn't it be 512? > > > > > > I seem to remember (from previous tries in the past) that there was an > > > issue of Linux not reading all the ram. There was a file that the > > > person was directed to and told to edit it to what his ram was. Does > > > anyone out there know what I am talking about? > > > > The rule I follow is > > > > 2x RAM when physical RAM is 128MB or less; > > 1x RAM when physical RAM is 256MB but greater than 128; > > never a bigger swap than 256MB > > > > In monitoring, I have never had my swap usage get above 80MB when my > > physical RAM was 256MB. When I increased physical RAM to 512MB, I never > > use the swapfile at all, and I run a lot of stuff at the same time. > > > > Once you get past 256MB, you really don't put enough stuff in memory to > > require a swap file at all (for desktop use anyway). > > I forgot to answer your question. That issue used to occur with older > hardware. The kernel needs to be booted with a mem= parameter to tell it > how much memory existed. You added it to the append line in > /etc/lilo.conf. this is more common a problem with "on-board" "shared video memory" motherboard/videocard combos that may not exactly correctly report available ram.
> I doubt that is your problem though, see my prior e-mail. But if you want > to check type > > cat /proc/meminfo > > which will output info about your memory to the screen. You can check to > see how much memory the kernel thinks you have.
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