On Tuesday 20 December 2005 12:06 am, Dave Jones wrote: > On Mon, Dec 19, 2005 at 10:47:01AM +0100, luca porcu wrote: > > 32 bit = 2 ^ 32 MB of RAM 4096MB is the max of RAM for CPU at 32bit! > > Except with PAE (Physical Address Extensions), the CPU is effectively > 36 bit. Giving a theoretical address range of 64GB. In practice > however, once you go past 4GB, your low memory region (0->896MB) > becomes filled very quickly with structures that _have_ to live > in that range, and all sorts of problems can occur (typically page > allocation failures, oom-kills). > > If you need > 4GB, I really recommend going to x86-64. > > Dave i cant afford to move to a 64-bit box, simply because its too expensive. im trying to pump-up the RAM for mysql-cluster running on fc3.. thanks,
