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тАО02-26-2004 04:42 AM
тАО02-26-2004 04:42 AM
Redhat memory question
I keep reading that RedHat doesn't really handle +3 GB RAM per process on either Itanium or Opteron. Can anyone confirmation this. If this is true then any indication when this limit will be overcome?
thx in advance
thx in advance
3 REPLIES 3
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тАО02-26-2004 05:17 AM
тАО02-26-2004 05:17 AM
Re: Redhat memory question
Both 64 bit chips mentioned CAN handle RAM figures greater than 2 GB.
AS to one process getting that much memory, that is not terribly likely, even with oracle and a large database.
The chips can definetely address memory amounts in chunks larger than 2 GB. Thats on Intel's web site.
A search for Itanium on Red Hats web site will lead you to the info you desire.
Example:
http://www.redhat.com/docs/manuals/enterprise/RHEL-3-Manual/release-notes/ws-itanium/
SEP
SEP
AS to one process getting that much memory, that is not terribly likely, even with oracle and a large database.
The chips can definetely address memory amounts in chunks larger than 2 GB. Thats on Intel's web site.
A search for Itanium on Red Hats web site will lead you to the info you desire.
Example:
http://www.redhat.com/docs/manuals/enterprise/RHEL-3-Manual/release-notes/ws-itanium/
SEP
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
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Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО02-26-2004 02:29 PM
тАО02-26-2004 02:29 PM
Re: Redhat memory question
Hello,
the current limit (RHEL 3) seems to be 3.7 GB for x86. I did not find specific information on IA64 or Opeteron on their pages besides of the slightly surprising that the total amount of memory supported under x86 is 64 GB, IA64 32 GB and Opteron only 16 GB. So it looks like the two ports still have some catching up to do.
Greetings, Martin
the current limit (RHEL 3) seems to be 3.7 GB for x86. I did not find specific information on IA64 or Opeteron on their pages besides of the slightly surprising that the total amount of memory supported under x86 is 64 GB, IA64 32 GB and Opteron only 16 GB. So it looks like the two ports still have some catching up to do.
Greetings, Martin
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тАО02-26-2004 08:01 PM
тАО02-26-2004 08:01 PM
Re: Redhat memory question
if you have PEA enabled linux will be able to address all the memory in you machine (+4GB ram) if not, you will only be able to address a max of 4GB. keep in mind that PEA introduced a performance penalty.
now, a process itself can only grow up to 3GB in size, no mather how much RAM your box has and afaik this is on all platforms.
now, a process itself can only grow up to 3GB in size, no mather how much RAM your box has and afaik this is on all platforms.
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