[MontelLUG] 32 o 64?

[Francesco Costa]

Salve lista.

Devo reinstallare Ubuntu 10.04 sul mio portatile e vorrei un consiglio: è
meglio reinstallare la versione a 32 o a 64 bit? Di seguito vi posto i
risultati di alcuni comandi che ho dato per capire la struttura della
macchina:

*inizio citazione*

lscpu

Architecture:          i686
CPU op-mode(s):        32-bit, 64-bit
CPU(s):                2
Thread(s) per core:    1
Core(s) per socket:    2
CPU socket(s):         1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 15
Stepping:              6
CPU MHz:               1000.000
L1d cache:             32K
L1i cache:             32K
L2 cache:              2048K


sudo lshw -C cpu

  *-cpu
       description: CPU
       product: Intel(R) Core(TM)2 CPU         T5500  @ 1.66GHz
       vendor: Intel Corp.
       physical id: 4
       bus info: cpu a 0
       version: 6.15.6
       serial: 0000-06F6-0000-0000-0000-0000
       slot: U10
       size: 1GHz
       capacity: 1667MHz
       width: 64 bits
       clock: 166MHz
       capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8
apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
pbe nx x86-64 constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64
monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm cpufreq
       configuration: id=1
     *-logicalcpu:0
          description: Logical CPU
          physical id: 1.1
          width: 64 bits
          capabilities: logical
     *-logicalcpu:1
          description: Logical CPU
          physical id: 1.2


cat /proc/cpuinfo

processor    : 0
vendor_id    : GenuineIntel
cpu family    : 6
model        : 15
model name    : Intel(R) Core(TM)2 CPU         T5500  @ 1.66GHz
stepping    : 6
cpu MHz        : 1000.000
cache size    : 2048 KB
physical id    : 0
siblings    : 2
core id        : 0
cpu cores    : 2
apicid        : 0
initial apicid    : 0
fdiv_bug    : no
hlt_bug        : no
f00f_bug    : no
coma_bug    : no
fpu        : yes
fpu_exception    : yes
cpuid level    : 10
wp        : yes
flags        : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc
arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3
cx16 xtpr pdcm lahf_lm
bogomips    : 3325.28
clflush size    : 64
cache_alignment    : 64
address sizes    : 36 bits physical, 48 bits virtual
power management:

processor    : 1
vendor_id    : GenuineIntel
cpu family    : 6
model        : 15
model name    : Intel(R) Core(TM)2 CPU         T5500  @ 1.66GHz
stepping    : 6
cpu MHz        : 1000.000
cache size    : 2048 KB
physical id    : 0
siblings    : 2
core id        : 1
cpu cores    : 2
apicid        : 1
initial apicid    : 1
fdiv_bug    : no
hlt_bug        : no
f00f_bug    : no
coma_bug    : no
fpu        : yes
fpu_exception    : yes
cpuid level    : 10
wp        : yes
flags        : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc
arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3
cx16 xtpr pdcm lahf_lm
bogomips    : 3325.03
clflush size    : 64
cache_alignment    : 64
address sizes    : 36 bits physical, 48 bits virtual
power management:
          width: 64 bits
          capabilities: logical


sudo uname -a
Linux IreneoFunes 2.6.32-31-386 #60-Ubuntu SMP Thu Mar 17 22:46:21 UTC 2011
i686 GNU/Linux


*fine citazione*

Mi sembra di capire che la macchina è in grado di supportare il 64 bit, ma
attualmente ho installato il 32. Leggendo su vari forum mi sembra di capire
che non ha molto senso installare Ubuntu a 64 bit se si hanno meno di 4 GB
di RAM (quindi a me non conviene...?). Voi cosa ne pensate? Grazie!!!
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