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Old 05-05-2003, 12:01 PM   #1
jt1020
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Question Ram


I'm using Red Hat 9, I have 256 Mb of RAM but the total RAM in Linux is only 249, why is it like that?? is this normal??
 
Old 05-05-2003, 12:06 PM   #2
jt1020
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My Swap Partition is 510 Mb though.... i chose automatic partitioning when i installed Red Hat, and I know that swap is determined by my RAM, for example: 256 Mb RAM, Swap will be 512 Mb.....

BTW, I used system monitor to check my RAM

Last edited by jt1020; 05-05-2003 at 12:07 PM.
 
Old 05-05-2003, 12:20 PM   #3
trickykid
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Quote:
Originally posted by jt1020
My Swap Partition is 510 Mb though.... i chose automatic partitioning when i installed Red Hat, and I know that swap is determined by my RAM, for example: 256 Mb RAM, Swap will be 512 Mb.....

BTW, I used system monitor to check my RAM
By default most distros if you let them auto partition your drive for installation they will double your ram, but its not always necessary to double. I have anywhere between 128 to 512 in all my machines and I always create a 100 to 125 meg swap file which is hardly ever used. So depending on your uses, its rare you'll ever need to have a swap double the size of your ram.
 
Old 05-05-2003, 12:29 PM   #4
jt1020
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Quote:
Originally posted by trickykid
By default most distros if you let them auto partition your drive for installation they will double your ram, but its not always necessary to double. I have anywhere between 128 to 512 in all my machines and I always create a 100 to 125 meg swap file which is hardly ever used. So depending on your uses, its rare you'll ever need to have a swap double the size of your ram.
ok, thnx for d info , but why is it that when i check system monitor my total RAM in Linux is 249 Mb only??, I have 256 Mb of RAM.....

Last edited by jt1020; 05-05-2003 at 12:30 PM.
 
Old 05-05-2003, 12:33 PM   #5
trickykid
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Oh that, I can't remember what the term is for it but most all OS's will report less RAM that what you really have. Its something along the lines of how it reserves some of the RAM for other purposes. Like your hard drive space, after a format of a filesystem, it will be less due to the inodes and information on some of the blocks on the drive itself.

Someone should come along and mention what the exact term is called.
 
Old 05-05-2003, 12:49 PM   #6
jt1020
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ok i get it now... thnx

im a wiser person

 
Old 05-05-2003, 01:19 PM   #7
tangle
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Does your video use the system memory? This could explain the loss. I have a motherboard that has video on board and I lose 8 megs because of it.
 
Old 05-06-2003, 12:34 AM   #8
nakkaya
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thats because some programs thinks that 1000 kb is a mb some think 1052 kb is a mb i have the same problem i have 256 mb and reports 249
 
Old 05-06-2003, 01:19 AM   #9
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ditto... I have 256MB and linux reports it as 249.
 
Old 05-06-2003, 03:00 AM   #10
jt1020
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Then I guess its normal, since alot of us are having the same reports in RAM

 
  


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