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-1
votes
2answers
32 views

How do I find out if my processor is 32-bit or 64-bit? [duplicate]

I am currently running a 32-bit OS, but I'm not really sure if I have to. According to some articles on the Web, there are no flags in my output that indicate that my CPU is a 64-bit. But according to ...
1
vote
2answers
47 views

Meaning of hardware platform in uname command ouput

man uname -m, --machine print the machine hardware name -i, --hardware-platform print the hardware platform or "unknown" What exactly is meant by hardware platform here and ...
1
vote
1answer
52 views

Get list of supported opcodes

Is there a way to get a list of supported opcodes for a given architecture? Such as a listing in /proc similar to /proc/cpuinfo.
0
votes
2answers
70 views

Writing a Script to match the architecture of system and software

I am trying to write a script where it will cross check to things: 1.The architecture for which the setup file was intended (32 or 64 bit) 2.The Architecture of the system. The second part is quite ...
1
vote
1answer
52 views

Socket and Core information - How do I check empty sockets?

I am trying to grab the number of sockets and core information. Till now I found that one socket can have multiple cores. http://rcritical.blogspot.com/2010/09/finding-cpu-socket-and-core-using.html ...
2
votes
1answer
50 views

How to get all CPU cache information without SU access

I am trying to find out the cache mapping scheme for all the levels of class of a linux server, however I do not have root access. I would just use DMIdecode for this but you need root access. Is ...
2
votes
1answer
250 views

Easy command line method to determine specific ARM architecture string?

I'm trying to write a script which will determine actions based on the architecture of the machine. I already use uname -m to gather the architecture line, however I do not know how many ARM ...
3
votes
2answers
84 views

Test if valid executable

Is there a (relatively) simple way to test if an executable not only exists, but is valid? By valid, I mean that an x86_64 Mach-O (OS X) executable will not run on an ARM Raspberry Pi. However, ...
2
votes
2answers
117 views

Need help finding the CPU id numbers to use with cpu sets

The man for cpuset doesn't seem to clearly list how to figure out which numbers map to which processing units. My current machine has two Intel Xeon E5645s, each of which has 6 cores and ...
7
votes
2answers
4k views

What is the difference between i686 and x86_64 packages?

I have a machine with both glibc i686 and x86_64, and a very annoying problem with glibc. Is it normal to have two libraries of the same name installed on one computer? How can I know which library ...
0
votes
1answer
134 views

What is the difference between ARM architecture and ARM core? [closed]

I read the data sheet of the TI - DM385 , in which they have mentioned as: ARM Cortex-A8 Core - ARMv7 Architecture What's the difference?
4
votes
1answer
105 views

Find out if CPU supports dynamic speed setting

I need to find out in my script if a (potentially legacy) CPU supports dynamic speed setting, and eventually get value of maximum and current speed. What makes it more complicated is that I need to ...
7
votes
2answers
3k views

64-bit kernel, but all 32-bit ELF executable running processes, how is this?

The output from uname: root@debian:~ # uname -a Linux 5asnb 2.6.32-5-amd64 #1 SMP Mon Jun 13 05:49:32 UTC 2011 x86_64 GNU/Linux However the /sbin/init executable shows up as 32-bit: root@debian:~ ...
4
votes
2answers
4k views

32-bit vs 64-bit vs ARM in regards to programs and OSes

So when I run Raspbian (basically a ARM Debian derivative with LXDE), I can install any normal package using aptitude. But if, for example, I wanted to download a .deb file, I would have to choose ...
3
votes
1answer
71 views

Is there a tool that I can use to create a diagram of my system's architecture?

I'm looking for a tool that can create both graphical files as well as text based ASCII representations of my system's CPU & motherboard architectures.
2
votes
2answers
6k views

Is there a way to dump a CPU's CPUID information?

I'm familiar with lshw, /proc/cpuinfo, etc. But is there a method for getting at a CPU's CPUID opcode?
-1
votes
1answer
219 views

Is the ELF format bound to a CPU architecture or not? [closed]

If you go through wikipedia it states that "ELF is flexible and extensible by design, and it is not bound to any particular processor or architecture." Then why are there so many packages like ...
0
votes
0answers
189 views

Differences between Chromium OS overlays?

In the ChromiumOS source, there are currently the following build overlays offered: overlay-amd64-corei7 overlay-amd64-drm overlay-amd64-generic overlay-amd64-host overlay-arm-generic ...
0
votes
1answer
56 views

Debian package available for ia64 but not for x86_64?

I want to download aptitude to build it from source on my 64bit machine. It is a Thinkpad with a normal x86_64 CPU, nothing special. The download page only has: alpha amd64 armel armhf hppa ...
18
votes
4answers
5k views

Is there a system command, in Linux, that reports the endianness?

Does anyone know of a command that reports whether a system is Big Endian or Little Endian, or is the best option a technique like this using Perl or a string of commands? Perl # little $ perl ...
2
votes
1answer
370 views

debootstrap from Intel Atom (i686) to AMD Sempron (AMD 64)

I'm working on setting up a minimal Debian install on a USB stick, and am just trying to wrap my head around debootstrap and differences in architectures. I want to create a system to run on AMD64 ...
4
votes
3answers
1k views

default wordsize in UNIX/Linux

I was inspecting the preprocessed output of my C program and happened to look at the header file wordsize.h It is located in /usr/include/i386-linux-gnu/bits/wordsize.h the file contains only one ...
2
votes
7answers
638 views

Determining Linux architecture from files

I have a system with an unrecoverable /usr partition. Terrified the drives are going bad, I've got it booted into a LiveCD environment, and I can't remember what the install architecture was, the ...
2
votes
1answer
5k views

How to get past “Loading Initial Ramdisk” hang after going from x86_64 to i686 cpu

Long story short, I have a Ubuntu 12.04 64-Bit Server setup as a virtual machine with VirtualBox (4.1.18). I migrated the guest machine from an AMD chipset (a gaming machine) to an Intel Xeon (server ...
2
votes
1answer
1k views

Huge page and performance improvemnt

How can using huge page improve performance? I have read that huge pages improve performance by reducing TLB lookups and reducing the size of the page table. Can someone tell me how this helps with ...
2
votes
1answer
4k views

Can one install an armel Ubuntu package on armhf Ubuntu system?

My particular concern is about installing "coq" in Ubuntu 12.04 for Toshiba AC100 (armhf distro), which hasn't been built successfully for armhf, but is available for armel -- ...
6
votes
3answers
1k views

Difference between “machine hardware”, “processor type” and “hardware platform”

My Linux machine reports "uname -a" outputs as below: [root@tom i386]# uname -a Linux tom 2.6.9-89.ELsmp #1 SMP Mon Apr 20 10:34:33 EDT 2009 i686 i686 i386 GNU/Linux [root@tom i386]# As per man ...
23
votes
6answers
99k views

How to determine Linux kernel architecture?

uname -m gives i686 and uname -m gives i686 i386 output in Red Hat Enterprise Linux Server release 5.4 (Tikanga) machine. I need to install Oracle Database 10g Release 2 on that machine. So, how can I ...