AMD Triple core vs. Intel Dual Core
location: linuxquestions.com - date: July 4, 2011
I want to buy a new notebook,
the AMD triple core one is cheaper than Intel dual core,
is 3-core better than 2-core?
Dual Core on Ubuntu 6.06 LTS
location: linuxquestions.com - date: June 11, 2006
How do i get dual-core support on ubuntu 6.06. I would also like to kno if it can be done on both 32-bit and 64-bit versions aswell.
How to enable dual core?
- date: August 18, 2010
I've recently realised that my laptop (Dell Inspiron 640m) which should come with a dual core, doesn't actually run like one on Ubuntu. For example when I look at the system monitor, I see only one CPU trace and when I click on system it says I have the Intel Core 2 CPU [email protected]
Now I know I have a dual core. The sticker on the chassis says it should have an Intel Centrino Duo. Question is, how do I get the dual core functionality back? Please help!
I'm using Lucid 10.04 LTS.
Only one CPU shows on P4 dual core
location: ubuntuforums.com - date: April 20, 2012
I did a clean install of Precise on a P-4 2.8 MHz but only one core shows in cpuinfo....how can I turn the other CPU on, if that's even possible?
Only one core of dual core processor are working
location: linuxquestions.com - date: March 14, 2011
I recently read in a forum that by default the Linux kernel only activates one of two cores in a dual core processor. Searching online gave one option to find out and that was the mpstat command. I therefore ran the command and got the following output.
$ mpstat -P ALL
Linux 2.6.35-22-generic (inkit) Monday 14 March 2011 _i686_ (1 CPU)
05:15:24 IST CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
05:15:24 IST all 26.87 0.23 7.93 0.38 0.00 0.04 0.00 0.00 64.56
05:15:24 IST 0 26.87 0.23 7.93 0.38 0.00 0.04 0.00 0.00 64.56
As the result says, it shows only 1 cpu. I was wondering what I could do to activate both cores in my machine, and whether doing so was going to cause me any problems. I would be very grateful for any advise in this regard.
Dual core processor optimization
location: linuxquestions.com - date: May 3, 2006
I have a general quetion out of interest that how can i find out whether my laptop is optimized for dual core processor(i.e 2 logical processors). Is it that only one is functioning and other isnt without my knwing it... hw can i find about this. Do we need to run any benchmark tools to find out.
I have a centrino core duo processor in my laptop. I have fc5 - smp-2080 kernel installed apart from winXP pro.
So either in windows or linux what can be a suitale way to determine this...
amd64 dual core can not enable hyperthreading
location: ubuntuforums.com - date: February 4, 2009
I have a hp tx1410us (a tx1000 derivative) and i have tried enabling hyperthreading by adding ht=on to the following line in menu.lst
# kopt=root=UUID=4c65d231-9d98-4077-bf77-13828f4a744a ro ht=on
and running update-grub. But it still shows only 2 processors in any program that i use to look. heres what cat /proc/cpuinfo shows
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 104
model name : AMD Turion(tm) 64 X2 Mobile Technology TL-64
stepping : 2
cpu MHz : 800.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
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 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow rep_good nopl pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch
bogomips : 1595.69
TLB size : 1024 4K pages
clflush size : 64
Intel Celeron Dual Core 64 or 32 bit?
location: ubuntuforums.com - date: June 7, 2009
Hi, I have recently acquired a new processor; Intel Celeron E1400 Allendale 2.0GHz 512KB L2 Cache LGA 775 65W Dual-Core Processor. Under the product specifications it says that the CPU is 64 bit compitable. Shall I install Ubuntu 64 bit or 32 bit?
32bit vs 64bit, dual core vs quad, and clock speeds
location: linuxquestions.com - date: February 28, 2007
So many options these days and probably lots of them I don't need. So some questions:
Is 64bit software feel twice as fast then 32bit software? Or does that do with multitasking?
Having (for example) a dual core 2.6GHz vs a quad core 2.3GHz... what would you feel? If I'm looking for speed instead of multitasking, would it be better to get option A?
And ahh, think that's it...
Poor video performance Intel Atom Dual Core w/ NVidia Ion
location: ubuntuforums.com - date: January 23, 2010
I just build an HTPC with the following:
Intel Atom 330 (1.6GHz, dual-core)
NVIDIA ION graphics processor
2GB DDR2 667 MHZ
160 GB Sata HDD
From what I have been reading about the atom w/nvidia ion I believed that this machine should play 1080p no problem, but it lags on even 720p and I get tearing with regular xvid playback.
On HD content, mplayer gives the "your machine is to slow" message. Totem just doesn't play it well.
I have tried the NVIDIA 185 (from the repos) and 190 (from Nvidia) drivers. I have output in mplayer with vdpau and xv with the same playback results.
Ubuntu-restricted-extras as well as the medibuntu codecs are installed (tested both with and without the medibunto codecs)
SSHing into the machine and running htop shows no core above 50% when playing back via vdpau so I assume that is working.
The motherboard supports HDMI audio/video output and thats the output I use.
I'm not sure what other information would be helpful, but I
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