LinuxQuestions.org
Register a domain and help support LQ
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices

Reply
 
Search this Thread
Old 03-15-2011, 08:30 PM   #16
Inkit
Member
 
Registered: Feb 2011
Location: India
Distribution: Mint 10
Posts: 141

Original Poster
Rep: Reputation: 15

I'm sorry, the full result of the command is as under
Linux inkit 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:34:50 UTC 2010 i686 GNU/Linux

I did not include the whole line because when I checked around in google, I found that SMP was automatically enabled in all kernels after 2.2.8 or 9 or something like that.
I ran the dmesg command sygOO, but everything I get is what appears to be the firewall audit details and has similar details to what will be displayed on firestarter under edit. there does not seem to be anything else other than that, and I don't know if I should be looking into the internet connection report. Please let me know if there is something else that I can try.
The simplest way would probably be to remove the heat sink and take a look at the processor inside, but considering that the pins are a little tight, I don't want to force it and screw up a perfectly good system just because of some fancy of mine.
Thanks everyone for your time, and I appreciate your help.
 
Old 03-16-2011, 05:54 AM   #17
Soadyheid
Member
 
Registered: Aug 2010
Location: Near Edinburgh, Scotland
Posts: 774

Rep: Reputation: 126Reputation: 126
You could try downloading a differnt Live CD; Ubuntu, Fedora, Mandriva or whatever. Run it up and do
Code:
cat /proc/cpuinfo
again.
Just a thoght... All a bit strange. Removing the CPU to look at a load of pins? I reckon that's a pretty long shot. A bent/broken pin would probably have given a more terminal outcome, dropping a core? Highly improbable.

Play Bonny!
 
Old 03-16-2011, 09:20 AM   #18
Inkit
Member
 
Registered: Feb 2011
Location: India
Distribution: Mint 10
Posts: 141

Original Poster
Rep: Reputation: 15
Hi Soadyheid, I understand what you mean. I got an answer in another forum that sometimes hyperthreaded cpu's show up as a dual core in xp which may answer my question in that XP showed that my processor was a dual core, but linux shows only a single core. What do you think?
 
Old 03-16-2011, 10:36 AM   #19
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 12,350

Rep: Reputation: 1041Reputation: 1041Reputation: 1041Reputation: 1041Reputation: 1041Reputation: 1041Reputation: 1041Reputation: 1041
Let's see the output from this (cut-and-paste it)
Code:
grep -iE "sched_smt|sched_mc|x86_ht" /boot/config-$(uname -r)
I just checked Mint 10 (LMDE) on an i7 processor (4 cores hiperthreaded), and it correctly shows 8 processors in cpuinfo.
 
Old 03-16-2011, 11:27 AM   #20
Soadyheid
Member
 
Registered: Aug 2010
Location: Near Edinburgh, Scotland
Posts: 774

Rep: Reputation: 126Reputation: 126
Quote:
I got an answer in another forum that sometimes hyperthreaded cpu's show up as a dual core in xp which may answer my question in that XP showed that my processor was a dual core, but linux shows only a single core. What do you think?
Hyperthreading shows as an extra core in Linux as well, in fact at one time Windows systems couldn't handle multiple cores/hyperthreading (W'98 I think) while Linux could!

Play Bonny!
 
Old 03-16-2011, 07:44 PM   #21
Inkit
Member
 
Registered: Feb 2011
Location: India
Distribution: Mint 10
Posts: 141

Original Poster
Rep: Reputation: 15
Hi SygOO, Please find below the output for your command,

inkit@inkit ~ $ grep -iE "sched_smt|sched_mc|x86_ht" /boot/config-$(uname -r)
CONFIG_X86_HT=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y

I'm guessing that the HT=y and SMT=y means that my version of linux supports both hyperthreading and dual cores (can't connect MC with anything in my mind). Does that mean that my cpu is really a single core? Is it possible that a single core can show up as a dual core on XP for any reason?
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
migrate an old kernel module (working in single core) to dual core - repost senthil100 Programming 0 07-28-2009 03:39 PM
Stupid general hardware question: dual core or dual processor? Randux Linux - Hardware 8 05-28-2008 04:19 PM
Kernel Panic on Intel Core 2 Duo E6700 Dual Core Processor nwongrat Linux - Hardware 2 01-08-2008 10:13 PM
Dual core processor industris Linux - Hardware 1 09-04-2005 06:25 PM
Dual processor vs. Dual core cs. single on home machine fincher69 Linux - Hardware 3 03-04-2005 12:37 PM


All times are GMT -5. The time now is 06:58 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration