我在 Ubuntu 上执行了这个命令:
$ uname -a
Linux slabrams-desktop 2.6.32-29-generic #58-Ubuntu SMP Fri Feb 11 19:00:09 UTC 2011 i686 GNU/Linux
这是否意味着我使用的是 32 位还是 64 位处理器?
我试图弄清楚这一点的原因是我收到了如下错误:
cannot execute binary file
通过谷歌搜索,我认为这是一个处理器问题。有什么想法吗?
答案1
您可以使用lscpu
。
someuser@somelaptop:~$ lscpu
Architecture: i686 # <-- your kernel is 32 bit
CPU op-mode(s): 32-bit, 64-bit # <-- your cpu can handle 32 or 64 bit instructions
CPU(s): 4
Thread(s) per core: 2
Core(s) per socket: 2
CPU socket(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 37
Stepping: 5
CPU MHz: 1199.000
Virtualisation: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 3072K
对 Architecture 字段的进一步解释:
X86, i686, or i386 means you are running a 32 bit kernel.
X86_64 , amd64 , or X64 means you are running a 64 bit kernel.
答案2
这意味着您正在运行 32 位内核,这意味着您只能运行 32 位应用程序,而无需使用模拟器或虚拟化。
lm
如果您想查看您的处理器是否是 64 位,请在列出的标志中查找/proc/cpuinfo
。
答案3
您还可以使用文件:检查尝试运行的二进制文件的体系结构file filetocheck
。它将提到 32 位或 64 位。
答案4
基本思想:
x86_64 是 64 位 CPU,而 i386 是 32 位 CPU。
使用 lscpu
长答案:lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 17
Model: 3
Stepping: 1
CPU MHz: 550.000
BogoMIPS: 4397.92
Virtualization: AMD-V
L1d cache: 64K
L1i cache: 64K
L2 cache: 512K
NUMA node0 CPU(s): 0,1
简短回答lscpu | awk '/CPU op-mode/ {print}
输出 :CPU op-mode(s): 32-bit, 64-bit
使用 lshw
长答案:跑sudo lshw
稍微简短一点的答案:sudo lshw -c cpu
输出:
*-cpu
description: CPU
product: AMD Turion(tm) X2 Dual-Core Mobile RM-75
vendor: Advanced Micro Devices [AMD]
physical id: 4
bus info: cpu@0
version: Turion X2 Mobile RM-75
slot: Socket M2/S1G1
size: 550MHz
capacity: 4GHz
width: 64 bits
clock: 200MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp x86-64 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch osvw skinit hw_pstate lbrv svm_lock nrip_save vmmcall cpufr
更简短的答案:sudo lshw -c cpu | grep width
输出:width: 64 bits