Re: [RFC 00/15] x86_64: Optimize percpu accesses

From: H. Peter Anvin
Date: Fri Jul 11 2008 - 12:14:21 EST


Christoph Lameter wrote:

No, not i386. x86-64.

x86_64 are small systems? For 64 bit use one would expect 4GB of memory.

Hardly so. i386 has too many other limitations; for one thing, it starts having performance problems (needing HIHGMEM) at less than 1 GB. The additional registers, etc.

-hpa
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