[gentoo-amd64] Re: I can use only 3GB aout of install 6GB

[Duncan]

Branko Badrljica <brankob@××××××××××.com> posted
4A023791.6090900@××××××××××.com, excerpted below, on  Thu, 07 May 2009
03:21:21 +0200:

> Dual and quadcore like i7 or Phenom is simple SMP where all nodes see
> memory through the same interface.
> Modern multisocket i7-based  or Opteron is NUMA...

Exactly, at least on the AMD side, I'm not sure about Intel.  Multiple 
sockets on AMD64 (which means Opteron 2xx old, 2xxx newer, for dual 
socket, 4xx or 4xxx for quad-plus socket), NUMA capable, since each 
socket has its own built-in memory manager on the CPU die, with the  
possibility to hang memory off of each socket.

Single socket, non-NUMA, don't enable NUMA unless you want to try the 
kernel NUMA emulation stuff for some reason.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
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