se vi installano macchine a 32bit, e avete un fottio di RAM… non disperate, c’e’ HIGHMEM
la ram riuscite a vederla tutta, siete solo limitati nella dimensione dei processi a un max di 4Gb l’uno ๐
baci baci
Linux version 2.6.26-2-686-bigmem (Debian 2.6.26-17lenny2) (dannf@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Fri Aug 14 01:52:30 UTC 2009 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000007ffa0000 (usable) BIOS-e820: 000000007ffae000 - 000000007ffb0000 type 9 BIOS-e820: 000000007ffb0000 - 000000007ffbe000 (ACPI data) BIOS-e820: 000000007ffbe000 - 000000007fff0000 (ACPI NVS) BIOS-e820: 000000007fff0000 - 0000000080000000 (reserved) BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000480000000 (usable) 17536MB HIGHMEM available. 896MB LOWMEM available. Total of 8 processors activated (39903.78 BogoMIPS).
diciamo che l’innovazione vera รจ il PAE implementato direttamente nelle MMU di quasi tutte le CPU recenti:
http://en.wikipedia.org/wiki/Physical_Address_Extension
credo lo supporti anche windows… ๐