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.
0
votes
0answers
14 views
Dropbox very high CPU usage without any actual data transfer
The Dropbox process constantly clocks more than 50% CPU usage sometimes going up to the higher 80s and 90s. At the same time it does not even upload/download the files it is supposed to. The progress ...
0
votes
1answer
15 views
High CPU on video chats : any options?
With googling and finetuning, I've always been happy with Ubuntu. But now I can't find a solution anywhere for the high cpu usage of video conferencing.
I have an Asus 1215B eeepc, since more than a ...
1
vote
1answer
18 views
What is hammering the CPU when top is not running?
On Kubuntu 12.10 I can see with the KDE System Monitor Plasmoid that the CPU usage is fluctuating between 60% - 90% on both cores. As soon as I open top it goes down to 3% - 10%. I thought that the ...
0
votes
1answer
19 views
trying to install ubuntu 12.04 on my oracle vm 4.2. can't susseed
i was trying to install ubuntu 12.04 in oracle vm 4.2.12r84980 , after booting is "this kernel requires an x86-64 CPU, but only detects an i686 CPU, unable to boot"
but i am using a 64 bit win8,and ...
-1
votes
0answers
19 views
Difference between i686 and x86_64 [duplicate]
I have Intel core 2 duo machine with the following CPU details
Architecture: i686
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Indian
CPU(s): 2
On-line ...
0
votes
0answers
12 views
CPU interrups on Lenovo U310
im new at Ubuntu and just got my brand new Lenovo E310. I noticed that i have around 500-1000 IRQ (PCI-MSI-edge i915 or "local" interrups per second, is this a bad value or is it normal to have ...
0
votes
0answers
31 views
Amd apu e-350 recognized as e-300
My machine is a lenovo thinkpad x121e, i'm running 12.04 precise 64bit. Recently I discovered that my cpu is recognized as amd e-300, the problem is that i'm pretty sure that this laptop only comes ...
-1
votes
0answers
18 views
Building Linux PC [closed]
Im building a linux pc, i dont know if it will work. The specs are
Intel G540 CPU 2.50 GHZ 2M CACHE 2.5 2 LGA 1155 Processor
MSI LGA1155/Intel H61/DDR3/A&GbE/MicroATX Motherboard H61M-P31 (W8)
...
0
votes
0answers
21 views
Limiting CPU frequency per process?
I am running a Minecraft server hosting. I unfortunately experienced that the servers are eating up all the CPU's processing power, so I want to limit the CPU frequency per each process.
I have read ...
0
votes
0answers
24 views
Higher CPU consumption after replacing RAM with 2 RAMs
I replaced my 2GB RAM (PC3-10800) with 2 2GB RAMs (PC3-8500) and my CPU consumption is higher, pc is often slower and laggy. I experienced this problem on Ubuntu 12.04 and Ubuntu 13.04 (32-bit).
...
0
votes
1answer
18 views
How to troubleshoot high cpu problems related to postgres and postmaster service?
I'm using an open source(RHCE 6.2) based machine running SIEM software , when i do the top command i see
postgress
postmaster
both eating 96% of cpu usage? Is there a way to pin-point or see ...
0
votes
2answers
94 views
Why is the Intel Turbo Boost Mode not running at maximum speed?
I tested CPU frequencies with either the Intel tool i7z and turbostat from the linux-tools package (sudo modprobe msr, sudo turbostat) and what I find as maximum frequencies for two different ...
0
votes
1answer
39 views
high cpu linked to unresponsive websites?
I have two websites on an ubuntu server. None of them are responding when I try to access them on a browser. So I sshed into my ubuntu server and ran the top command. I noticed that three processes ...
0
votes
0answers
31 views
How to set the number of maximum cores Minecraft can use?
I am working on a simple and open source Minecraft webadmin that makes starting, stopping and killing possible over a web interface and I bumped into a problem. I want to maximize the number of CPU ...
1
vote
2answers
91 views
Maximum CPU frequency stuck at low value
I have observed a problem with Ubuntu 13.04. The problem was not there on 11.10 I used earlier. The maximum CPU frequency is stuck at 2GHzon my Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz (Dell Lattitude ...
1
vote
3answers
57 views
CPU Upgrade Issue
Is it possible to upgrade CPU (ex: from AMD Athlon II X2 to Phenom II X4) without any problems? I means just replacing the old cpu with new cpu at same socket and booting ubuntu with any problems or ...
0
votes
1answer
54 views
is intel turbo-boost option good for life-time?
here is intel-core-i-7 with 2.8 Ghz resp. 3.5 Ghz as turbo-boost option.
with this question I refer to this link:
Does Intel turbo boost work in Ubuntu?
Is option of turbo-boost not harming the ...
1
vote
0answers
90 views
High CPU temperature when using GNOME
I have ASUS Extensa 4220 laptop.If I install Kubuntu (any KDE-based), then the CPU temperature looks normal for a long time (now it is 74 degree Celsius). But when I install GNOME-based distros, then ...
1
vote
1answer
45 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
...
0
votes
1answer
148 views
Should I install amd64-microcode? [closed]
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 ...
1
vote
5answers
435 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
0
votes
1answer
314 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 ...
0
votes
0answers
83 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
votes
2answers
59 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 ...
0
votes
1answer
1k 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: ...
0
votes
3answers
62 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
votes
1answer
96 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 ...
1
vote
1answer
87 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 ...
0
votes
0answers
139 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 ...
0
votes
0answers
42 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
votes
2answers
2k 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 ...
0
votes
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
votes
0answers
94 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
votes
0answers
43 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 ...
1
vote
0answers
31 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 ...
0
votes
0answers
31 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
votes
1answer
43 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 ...
1
vote
0answers
101 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).
0
votes
0answers
210 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 ...
-1
votes
1answer
116 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
votes
0answers
88 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
votes
1answer
778 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 ...
1
vote
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 ...
1
vote
0answers
135 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
vote
1answer
399 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
vote
0answers
229 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
votes
2answers
114 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?
1
vote
0answers
57 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 ...
0
votes
1answer
484 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 ...
1
vote
0answers
54 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 ...
