Subject: Re: Upper limits of CL
From: Erik Naggum <>
Date: Sat, 15 Jun 2002 18:57:45 GMT
Newsgroups: comp.lang.lisp
Message-ID: <>

* Christopher Browne
| In comparison, I can walk down the street and get an IA-32 motherboard
| that supports 2GB of RAM for maybe a couple hundred bucks.  But it won't
| support 8GB.

  You are aware that IA-32 has support for 36-bit addressing, right?  (The
  PSE36 CPU flag reports its presence in a particular processor.)  Chipsets
  with support for the full 64GB address space are certainly available, and
  Linux supports them in recent kernel versions, giving you 4GB of physical
  memory per process.  I am not so sure the raw need for 64-bit processors
  will be all that imminent, given the ability to provide so much RAM to
  the 32-bit processors.  Not that 32 bits is enough, of course, but we may
  find better ways to work with 64-bit units than switching the whole
  processor.  The only serious short-coming in modern implementations of
  IA-32 is the register starvation.  It is quite fascinating what Intel
  (and AMD) have been able to do with this architecture.
  In a fight against something, the fight has value, victory has none.
  In a fight for something, the fight is a loss, victory merely relief.

  70 percent of American adults do not understand the scientific process.