Hi Folks ,

I have a small doubt , can anyone help me out in finding what is the bit level of kernel as well as CPU , like 32 or 64 bit ?

well i tried with dmidecode but was not able to find speficicallly this ,or is ther anything that i should check on the output of the dmidecode ..

Please help me regarding this .

thanks,
shads

The command 'uname -a' minus the single quotemarks will tell you if the kernel is 32 or 64 bit (after a little human decoding);

$ uname -a
Linux Aspire5000 2.6.20-rc3 #1 Mon Jan 1 12:56:26 EST 2007 x86_64 x86_64 x86_64 GNU/Linux

The command 'cat /proc/cpuinfo' minus the single quotemarks will do the same for the CPU;

$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 36
model name : AMD Turion(tm) 64 Mobile Technology ML-30
stepping : 2
cpu MHz : 1600.091
cache size : 1024 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm
bogomips : 3200.74
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc

Hi ,

First of all let me thank you for the info provided.

well i have checked with both these commands and i dont c anything specific in my box ,even iam not able to see some fo the field which you have pasted from the commands "uname -a and cat /proc/cpuinfo"

Is ther any other method to findout ..??

when i gave cat /proc/cpuinfo

processor : 4
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Xeon(TM) MP CPU 3.00GHz
stepping : 6
cpu MHz : 3000.630
cache size : 512 KB
physical id : 2
siblings : 2
runqueue : 4
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 5989.99


and from the output uname -a its

Linux testbox 2.4.21-32.0.1.ELsmp #1 SMP Tue May 17 17:52:23 EDT 2005 i686 i686 i386 GNU/Linux


so is ther any method to finout from these outputs ..??

i686 is 32-bit

okss thanks

can i know what will it show if its an 64 bit ?? would it show 64 itself ?

and how about the CPU bit , how can we check that ? is that visisble in the cat /proc/cpuinfo output ? ?

If you have a 64-bit kernel it would say x86_64 instead of i686 or i386 when you run 'uname -a' (see the output in Lenard's post).

I'm not so sure about the cpu though. Are all Intel Xeon processors 64-bit?

Hi ,
well that was answered well. but on the CPU info i guess all Inter Xeon processors are not 64 bit we have 32 bit too.. so is ther any other way to find out which bit is currntly using ? ?

Hi ,

well that was answered perfect . But i guess all Intel Xeon CPU is not of 64 bit , some are of 32 bit too , so is ther anyway to chk what is the present CPU bit used ?

Thanks in advance