CPU stands for Central Processing Unit, and is the main processing chip used in every computer. Brands include Intel, AMD and ARM. CPUs are commonly available in 32- and 64-bit, and come in a variety of frequencies or with multiple cores.
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1answer
25 views
Ubuntu Compatibility
I'm in the process of building a computer for a customer who has requested Ubuntu 13.04 to be installed could someone tell me if the following components are compatible.
CPU: Pentium G2020
...
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0answers
16 views
Should I install amd64-microcode?
This is my system:
AMD Phenom II x4 960T (unlocked to 6 cores)
8GB 1066 DDR2 RAM
Gigabyte Radeon HD6670 1GB DDR3 (AMD Catalyst 13.4 propriety driver)
Ubuntu 13.04 at 1920x1080 60Hz
Dual boot with ...
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5answers
154 views
Ubuntu 13.04 ram and CPU maximum support? [closed]
I'm learning about ubuntu, but I do not know the ubuntu 13.04 Ram and CPU support up to how much??? hope you help me
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1answer
175 views
Why does CPU usage spikes to 90% and more after wake from suspend on Ubuntu 13.04?
On an Acer C7 Chromebook running ChrUbunutu (not CROUTON) I noticed a problem after moving to 13.04.
If I put the system to sleep and then wake it up both CPU cores spike to 90%+ usage. Soon after ...
-1
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0answers
27 views
Question regarding Upgrading my computer and 13.04 [closed]
I'm having my local shop upgrade my Mobo, cpu, and memory tomorrow. They are only charging me $24.99 to install the hardware but said they do nothing with Linux. They said they if it doesn't start ...
0
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0answers
38 views
rhythmbox-metadata uses 100% cpu
Everytime I start rhythm box the process rhythmbox-metadata starts up and uses 100% cpu on one core, causing the computer to heat up and the fans to start rotating hard. I have an external drive with ...
0
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2answers
55 views
Which ubuntu Version should I install In this Processor type ? AMD64 or x86_64 [duplicate]
root@cmovel-lb01:~# lscpu
Architecture: x86_64 >>>>>>
CPU op-mode(s): 64-bit
CPU(s): 4
Thread(s) per core: 1
Core(s) per socket: 4
CPU ...
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1answer
496 views
Ubuntu 13.04 - High temperature [duplicate]
I've always used Ubuntu. I installed the version (13.04) and I have a problem: the CPU's temperature is high also in normal condition.
This is the response of lm-sensors:
acpitz-virtual-0
Adapter: ...
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3answers
58 views
Does using 2 OSs affect CPU speed?
I have windows 7 already installed on my laptop and I would like to know if installing ubuntu as well would affect my processor's speed. Here are the specs for the processor: ...
2
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1answer
76 views
8 CPU and one is at ~100% all the time
With :
Ubuntu Release 12.04 (precise) 64-bit
Kernel Linux 3.2.0-29-generic
Intel® Core™ i7-3635QM CPU @ 2.40GHz × 8
The first CPU is always at ~70%-100% with nothing big running and it is making ...
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1answer
66 views
How to Limit the CPU usage for a process and its Children wether there is another process demands resources or not
i was wondering about something like CPUlimit to limit the process CPU usage but i am aiming to apply the same percentage of usage for its children processes too automatically without adding them ...
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0answers
92 views
Minimum and maximum cpu frequency are equal
I just noticed my laptop stared working considerably slower. I am using an updated 13.04, though the issue did not start right after the upgrade. After tracking down the issue I noticed that both ...
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0answers
36 views
Overheating: how can i monitor it?
i've got a pc desktop with AMD Athlon 5000+ and ATI Sapphire 3850. I think both of them have got overheating issue, because im always with a virtual machine (virtualbox) on. In fact, i don't think ...
3
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2answers
1k views
Overheating problem on Ubuntu 13.04
I have recently upgraded Ubuntu to 13.04. Since this time I have overheating problems with CPU and graphic card. I also can't use fglrx drivers, because Ubuntu does not work properly, so I use the ...
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0answers
30 views
Is there something Limits the CPU usage for a process and its Children [duplicate]
i was wondering about something like CPUlimit to limit the process CPU usage but i am aiming to apply the same percentage of usage for its children processes too automatically without adding them ...
0
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0answers
93 views
High CPU Temperature and fan speed noise [duplicate]
I am using Ubuntu 13.04. In which I am getting High CPU temperature and fan speed from beginning of the system. Temperature remain > 62°C. I am using Jupitar but it's not helping in case of mine. ...
0
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0answers
34 views
Having trouble installing Ubuntu
I am trying to install Ubuntu 12.04 32-bit, but every time I try to install it, this message comes up: stopping cpu interrupts balancing daemon
It's accompanied by the screen flickering between the ...
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0answers
30 views
How to investigate scheduler issues?
I have a server process that should runs multiple threads at close to 100%, each on its own CPU. When I run the process on a RHEL box, the CPUs in question appear to stay pegged at 100%, according to ...
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0answers
24 views
How to create virtual cpu/threads?
is there any way I can make Ubuntu think there is more CPU’s/CPU threads than there actually is?
For example Making a 2GHz dual-core appear to the Entire system, including the kernel as a 1GHz ...
2
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1answer
37 views
Getting cpu usage realtime
When I execute following command to get cpu usage , I get nice + user cpu usage.
top -b -n1 | grep "Cpu(s)" | awk '{print $2 + $4}'
Output:
14.5
Here I am getting problem is that the output ...
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0answers
88 views
Ubunut 12.10 64 bit using 100% CPU
Configuration
Ubuntu 12.10(64 bit)
i3 Processor
Ruby 1.9.3
Java openjdk(6 or 7)
Any ruby or java command using 100% CPU. It works perfectly fine with ubuntu 10 or 11 (32 bit).
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0answers
178 views
Xorg and compiz using 20% of CPU
I'm not doing anything in particular but Xorg is currently using 8-15% of my CPU and Compiz is using 5-15% as well. I have 4 virtual desktops (aka workspaces) and like 10 windows open but I see no ...
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1answer
98 views
AMD Athlon II x2 270 performance
I want to buy a new PC. I want to know how does this CPU works fine on Ubuntu.
It's an AMD Athlon II x2 270.
I'm not asking for a review. I just want to know if it works fine on Ubuntu, because I've ...
2
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0answers
81 views
CPU fan kicks in to full gear when i try to install ubuntu 12.10 or LTS
Whenever I try to install (DUAL BOOT WITH WINDOWS 7) both versions of Ubuntu desktop on my PC the CPU fan starts spinning so fast that I couldn't even go through the installation for fear of my CPU ...
4
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1answer
584 views
Difference between core temp and cpu temp
I installed a sensor reporting utility on my Ubuntu machine (a desktop machine) and it reports drastically different temperatures for the ACPI CPU reading and the ISA Core 0/Core 1 reading.
The ACPI ...
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1answer
30 views
Non-symmetric core load when playing a game
I play Serious Sam 3 on Ubuntu 12.10 amd64 with AMD Phenom II X4 955 processor. And all time I play it there was fully loaded only one core. Command
mpstat 1 1500 -P ALL
after some time gives ...
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0answers
119 views
Increased CPU temp compared to Windows 7
I have a Lenovo Z570 Thinkpad with windows 7. One of my friends suggested that a 4GB RAM is much more effective when working on Linux than on Windows, so I searched a lot and installed Ubuntu ...
1
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1answer
290 views
How many CPU cores and RAM on VMware Player for Photoshop?
How much RAM and CPU core should I allocate for my VMware Player(Windows 7 x64 as Guest OS)?
My System Specs:
Ubuntu 12.10 x64
Intel i7 @ 2.20 GHz (4 cores + hyper-threading)
8GB RAM
750 HDD
Intel ...
1
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0answers
180 views
How to enable higher CPU frequency on Lubuntu 12.04?
I have a Dell Latitude D430 laptop and I am unable to get the CPU to scale up to it's max 1200MHz. I have installed the indicator-cpufreq tool and also the cpufrequtils package. However, my CPU is ...
2
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2answers
95 views
High CPU load on LibreOffice menu
My Ubuntu 12.04 LTS with gnome-classic shows a large CPU usage after I highlight any LibreOffice app in gnome menu (Apps->Office-> *).. only on LibreOffice.
What is the reason?
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0answers
50 views
high interrupts
I have high Rescheduling interrupts and Local interrupts. while doing nothing my total CPU wakeups reach 275-400. While watching movies it reaches up 900-1000. And while browsing the Internet it ...
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1answer
435 views
Unusually high CPU% and bad performance on both Ubuntu and Xubuntu
I recently decided to switch to Ubuntu from Windows 7, and I've been having some problems regarding CPU usage. Any program I have running uses 40-50% of my CPU, which is way too much obviously. I'm ...
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0answers
49 views
CPU performance decreases with AC power
I am doing CPU-intensive work on my Thinkpad X220 laptop and I find the performance bad. Interestingly, the CPU becomes more powerful if I disconnect the AC power and run only on battery! It does slow ...
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0answers
150 views
My CPU fan speed doesn't change
When I run Windows OS, for the first 1-2 minutes the CPU Fan speed is the highest, and then it becomes slower, when Desktop appears.
With Ubuntu my CPU Fan speed doesn't change, so I mean when I turn ...
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2answers
294 views
What is my CPU Temperature
to get my CPU temperatures i first typed sudo sensors-detect and confirmed everything with yes.
Then i typed sudo service module-init-tools restart
Now this is the output of sudo sensors, but which ...
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1answer
614 views
High CPU temperature and Fan speed in ubuntu 12.04
I am using 12.04 LTS version of ubuntu. In which I am getting High CPU temperature and fan speed from beginning of the system. Temperature remain > 62°C. I am using jupitar but it's not helping in ...
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0answers
102 views
Why is the sched_mc_power_savings file not present?
The file /sys/devices/system/cpu/sched_mc_power_savings is used to control power saving in multi core cpus. I am using ubuntu 12.10.
When I check my /sys/devices/system/cpu/ directory, I can see the ...
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0answers
264 views
Cpu fan always running and the air is too hot
My laptop is a
Dell Inspiron 14R 5420
Video cards: IntelHD Graphics 4000 and NVIDIA Geforce GT 630M
Currently running Ubuntu 12.04.1 LTS dual boot with Preinstalled Windows 8 system.
After ...
3
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0answers
94 views
How do you prevent CPUs from being throttled when battery is taken out of Laptop (aka only on AC power)?
My laptop CPUs are throttled down to .8GHz instead of 2.5GHz whenever I am connected to AC only and not the battery. I tried using cpufreq-set and it allows me to set the speed when the battery is ...
0
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0answers
155 views
Can't get finger print reader working on Sony Vaio
I have a Sony Vaio vgn-sr13mn-B running Ubuntu 12.04. My problem is that I cant get my fingerprint scanner to work. Can anyone help.
3
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1answer
205 views
Very High CPU usage on HP dv7 Laptop when IDLE
I'm pretty new to Linux computing. So I finally thought of giving Ubuntu a try, by dualbooting it with Windows 8 on my hp dv7-6006tx laptop. Laptop Specs
But after installation, I immediately ...
3
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1answer
134 views
How can I check if my computer has AES-NI support?
I've heard that disk encryption works reasonably faster when CPU supports AES-NI. How can I check if my CPU supports it? Does the Ubuntus default encryption (dm-crypt) use it by default or do I have ...
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2answers
172 views
Which operating system takes more advantage of multi core cpus
I want to know which one will benefit more from amd 8 (or in multi core setup in general) core setup windows or Ubuntu
or there will be no difference ??
thank you in advanced
3
votes
1answer
395 views
How to fix that only one out of four cores of my CPU is detected?
I have an Acer Aspire M5640/M3640 PC, featuring a Intel Core 2 Q8200 (Quad-core) processor running Ubuntu 12.04.
Now it seems to only recognize just one CPU core. lscpu outputs:
Architecture: ...
2
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3answers
163 views
Newly installed ubuntu feels slow
About two years ago I first tried Ubuntu (11.04) on my sony vaio fw11e and I remember that I was impressed by how smoothly everything just worked out of the box. For different reasons i reverted back ...
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0answers
35 views
got an error : CPU does not have PAE … cannot run this Kernel .. help [duplicate]
Possible Duplicate:
How can I install on a non-PAE CPU? (error “Kernel requires features not present on the CPU: PAE”)
How do I boot Ubuntu in VirtualBox complaining that my CPU is ...
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0answers
199 views
How do I boot Ubuntu in VirtualBox complaining that my CPU is incompatible?
After a long time spent with OS from boys from Redmont I would like to try something new. I decided to try some Linux editions, also Ubuntu Linux. I am completely new to this matter, this is also my ...
1
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1answer
176 views
Sluggish desktop/Unity performance on ThinkPad Edge
Fresh (1 week old) install of Ubuntu 12.10 64 bit version on a ThinkPad Edge 15, specs as follows:
System specs (site wouldn't let me hotlink the image)
I think the swap is about 2GB but can't ...
0
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0answers
222 views
Ubuntu 12.04 uses single cpu on Intel Core 2 Duo MacBook
I have Intel Core 2 Duo MacBook5,2 with 64bit Ubuntu 12.04 installed. The problem is it uses only one cpu. gnome-system-monitor and /proc/cpuinfo display only one cpu running.
$ /proc/cpuinfo
...
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1answer
263 views
identical “cores” in /proc/cpuinfo
An Opteron 6128 shows up as follows in /proc/cpuinfo:
$ cat /proc/cpuinfo | grep -e ^core -e ^phys
physical id : 0
core id : 0
physical id : 0
core id : 1
physical id : 0
...
