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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Which version of ubuntu is best for cpu usage?

Going to be playing Java based games, which version of ubuntu should i use for lowest cpu? Or does it not matter?
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After Upgrade from Xubuntu 15.10 to Xubuntu 16.04 Acer Nitro VN7-792G Cpu running to hot

I recently upgraded to xubuntu 16.04 and have noticed the CPU temperature reaching between 55-85 C although the CPU load is the same as before I upgraded. This is about 10-15 C higher than before the ...
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I need to set apt-build mtune directive on VPS ubuntu server

I need to set the right architecture for apt-build to work, in a VPS environment. Here's cpu-info detailed: processor : 0 vendor_id : GenuineIntel cpu family : 6 model ...
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15 views

Understanding the reason behind a freeze using system logs to file bug

My Ubuntu laptop just froze a few minutes ago (like it is frequently doing) making me reboot it using the hardware forced way. I would like to know the cause behind it so that if necessary I can file ...
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39 views

Thinkpad W510 gets slow after 5 mins of regular activity (CPU thread fully loaded)

I own a Lenovo Thinkpad W510. Since I got it, I always run into this problem, especially when running Ubuntu. After starting the laptop and using Chrome or Firefox with just 4-5 tabs open and ...
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4k views

High CPU usage while playing Flash and using Jupiter

Hi guys from what I see by Googling around it's a common problem but somehow all the threads I've seen end in "Oooo Flash is terrible" and the post dies there. I'm experiencing a very high CPU usage ...
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15 views

CPU overloads when playing 3D games

Starting today, every 3D game I try to play slows down to a crawl of 1 FPS, and the CPU goes past 100%. This is seen specifically in Minecraft, Counter-Strike: Source, and Europa Universalis IV. ...
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410 views

My laptop is seriously overheating

I installed Ubuntu 15.04 alongside Windows 7 on my laptop about an hour ago, and within two minutes of running Ubuntu (both during the Live CD and post-install), my CPU temperatures reach 100°C. In ...
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Have: HP ENVY Desktop - 750-167c - Updated to Ubuntu 16.4, Need HW support

Have: HP ENVY Desktop - 750-167c Updated to Ubuntu 16.4 Need HW support! I keep getting an "HP update drivers" box when I boot the system. I click "OK" and nothing happens other than the next time I ...
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63 views

Ubuntu Backups consume 100% of cpu

I'm using the Ubuntu pre-installed Backups software, with Ubuntu 16.04 for Desktop (but perhaps the same issue was on older Ubuntu also). Each time it starts (once a day) it consumes 100% of cpu ...
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29 views

Video card like frying pan (heating)

I've installed the new Ubuntu 16.04 LTS (Unity) and sensors. This is what the sensors command gave me: acpitz-virtual-0 Adapter: Virtual device temp1: +64.0°C (crit = +89.0°C) temp2: ...
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2answers
118 views

Ubuntu 14.04 or 16.04 LTS?

I just got a new laptop that has an Intel Celeron Quad-Core processor of 1.83 GHz. On the Ubuntu 16.04 LTS website, they say the recommended minimum processor requirements are of 2.5 GHz. Are they ...
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148 views

Fan noise, too hot, lagging, Ubuntu 16.04 on laptop hp pavillion g6

The CPU is overused near at 100% with no reason and I've read that maybe is a graphics problem so below i have my specs if anybody could help. Laptop specs: hp g6 pavillion cpu intel core i3-3110 ...
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2answers
30 views

How to show size Ram and CPU ussage in Ubuntu?

I am newbie in use Ubuntu so I don't know how to show Ram and CPU usage which is the same in Task Manager on Windows. It can show by command line in Ubuntu or Application to see more.
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1answer
207 views

Ubuntu 16.04 slow [closed]

I've recently made the switch from Windows 10 to Ubuntu 16.04 (64bit), but I've begun noticing that a lot of things are running a lot slower. A few examples: Fast-forwarding video files (using VLC) ...
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318 views

High CPU Temperature after switch to Ubuntu 16.04

The idle CPU Temp of my Intel i5-3210M CPU was ~40°C on Ubuntu 14.04. Now, after upgrading to Ubuntu 16.04 (complete reinstall) it idles at ~52°C. Battery lifetime is also noticeably lower. What can ...
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6k views

is it true that Chromium uses more cpu than firefox?

Hi I was a firefox user but I switched to Chromium a while ago and I feel like Chrome uses uses more cpu browsing the web than firefox... I have this psensor app installed on my ubuntu 12.10 which I ...
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14 views

assign multiple cpu to process in linux

How do I assign multiple CPU to a single process in Linux. I want to assign at least four. I have already tried htop to see which CPU are used and it says any from 0-11. I want four dedicated CPU.
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how to setup cpupower at boot time in Ubuntu 16.04?

Ubuntu users! I have a Intel computer running basically as a HTPC machine for years 24/7 and at a certain point in time the Linux kernel started to use the intel_pstate driver for my i7 Ivy Bridge (I ...
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46 views

Best desktop enviroment for old PC

I don't know if this is the right place to ask this question, there may also be duplicates, I just want to ask: Which will be the best DE for: Pentium 4 3.6 GHz (2007), 1GB DDR2 RAM, Intel 915G ...
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1answer
78 views

Can't disable turbo boost since Ubuntu 16.04

I've recently updated to Ubuntu latest LTS. My computer suffers from bad cooling management, and I need to be able to disable turbo boost in order to use it comfortably. I had a script that was doing ...
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Intel Core i3 CPU is not 64 bit?

According to this page: https://help.ubuntu.com/community/32bit_and_64bit the following Intel CPU's are 64bit: Intel F and 5x1 series Pentium 4 using the "Prescott" core Pentium D Core 2 (Solo, Duo ...
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totem-video-thumbnailer uses almost all CPU power

After upgrading from Ubuntu 14.04 LTS to 16.04 LTS, my laptop gets hotter and uses almost all CPU power. How to fix it? Thanks a lot for your answer...
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35 views

Temperature sensors broken?

I just followed this guide to install lm-sensors on my machine but the output I get is kind of weird: asus-isa-0000 Adapter: ISA adapter cpu_fan: 0 RPM radeon-pci-0008 Adapter: PCI adapter ...
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How do you hotplug enable new CPU and RAM in a Virtual Machine

I am running Ubuntu in a virtual machine and I'd like to add CPU and RAM without rebooting the device. How can I hotplug this new virtual hardware?
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178 views

KswapD0 use 100% CPU

After upgrde from 15.10 to 16.04, I noticed my netbook fan was constantly turning at full throtle. I checked the process mnitoor and noticed KswapD0 used 100% of one core. What is the problem ? ...
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9k views

Should I activate the additional driver: Processor microcode firmware for Intel CPUs for intel-microcode

I have recently noticed that there is an additional driver called Unknown: Unknown here which was not there before: I have already read this, and understand why it is there, but my question is, ...
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31 views

How to run a job in several machines that have Ubuntu as operating system

I need to run a job in several virtual machines exists in a specific cloud and I have the IP address for all of them and I configured the hostname for all of them. How to run a command in a network of ...
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Why does chrome use excessive amounts of CPU?

Synopsis For the past few weeks, i've really started to notice a process on my machine hitting the CPU. So today I have taken a look into it, to find that Chrome is running about 100% CPU. Is ...
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4answers
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Getting Processor Information

I have just ran lshw to get some information about a machine I know nothing about, and I just wanted to confirm something. Does this basically mean it is a dual core 64 bit processor that is ...
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3answers
18k views

High CPU usage even when no application is running(Desktop)

I always have high CPU usage in Ubuntu in every version of it that I have used. I have been using Ubuntu from 10.04 version. My CPU usage even at idle is more than 30% for each core(unlike Windows 7 ...
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692 views

Does Ubuntu 16.04 support intel 64 bit processers [duplicate]

I am using Ubuntu 14.04 32-bit LTS for a while and I'd love to try Ubuntu 16.04 64-bit LTS. In Ubuntu download page I found 64-bit ISO image as ubuntu-16.04-desktop-amd64.iso, I am bit confused ...
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183 views

How to read lm-sensors on AMD FX 6300?

My FX 6300 sits on a ASUS M5A99FX Pro R2.0 and is currently overclocked (I did the stresstesting and such on Windows to get it stable). Now I need the socket temp and the core temps so I use lm ...
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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 ...
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4answers
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Ubuntu 15.04 with intel_pstate - low current cpu frequency

I've got Ubuntu 15.04 running on desktop with 6-core 5930K processor, msi x99s motherboard, 32gb ram, ssd and nvidia gtx 980ti. Quite surprisingly, the overall system performance is way lower than ...
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1answer
49 views

Installing gfortran and mpich for a new Ubuntu user

I am a long-term Mac user who is considering switching to Ubuntu. I am not a system guru. I program in fortran and mpi for cfd applications on high-performance computers. I am considering ...
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1answer
66 views

BayTrail CPU and Ubuntu 15.10

I have a machine with an Asrock q1900b-itx mobo and I'm experiencing random freezes of the system. By freeze I mean everything hangs and there is absolutely nothing that can be done except reset. I've ...
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How to force enable Turbo Core (AMD) on Ubuntu 15.10?

I'm running a Samsung Ativ Book 9 lite with Ubuntu 15.10 installed. The processor is supposedly equivalent to an A6-1450 Temash 1.0 GHz (1.4GHz boost) The problem I'm having is that turbo mode only ...
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watchdog/0 process using all my CPU suddenly

I have a fresh installation of Ubuntu 12.04, I have been running it for about a week. Suddenly today I noticed my computer freezes every 5 seconds. I restarted the computer and I still get this. I ...
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36 views

Inspiron 15 fan doesn't work

System configuration Win10 and Xubuntu 15.04 Dual boot i5 4200U Radeon 8850M Latest BIOS from dell tlp on Xubuntu installed. No more tweaks. coretemp module was loaded fglrx is not installed Idle ...
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55 views

Does Ubuntu already support Intel Speed Shift?

Does Ubuntu already support Intel Speed Shift? If not, when will it support Intel Speed Shift? I'm looking forward to use it with my new Skylake Mobile CPU.
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32 views

kworker CPU hog - waking up from suspend

I have the (apparently very common) problem of 'kworker' hogging CPU usage. As mentioned here, the solution for many is identifying the problematic 'gpe'. This solution seems to apply to my situation, ...
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24 views

indicator-cpufreq frequency lost after suspension/hibernation

As the title, I'm using indicator-cpufreq to set the frequency of the CPU. It's really useful when you are on battery and you want to save some power. However, when I wake the laptop after a ...
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1answer
58 views

Throttling stuck below limits on a cool cpu

This is an issue widely discussed earlier. Still, none of the suggested methods/procedures has worked for me. I'm running Ubuntu 14.04, kernel 4.4.0-040400-generic on a fanless mini computer, Intel ...
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Monitor CPU and bandwidth usage of cpu and save to csv

I would like to monitor a specific process. I need to know timestamp, CPU usage (%) and Bandwidth (tcp upload and download in % or byte/s) of this process. I have tried something like this: ps -Ao ...
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1answer
262 views

fan control issues on Toshiba Satellite c655d-s5136

On Ubuntu 14.04, my fan always runs,even when idle. This is not the case when I am in Win7,in which it only runs when I am playing movies. This bothers me greatly and I have followed other threads ...
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1k views

what is the difference between x86_64 amd64 and 64 bit

what is the difference between x86_64 amd64 and 64 bit ? I think its a stupid question but still. I use a x86_64 bit Ubuntu, but when ever I try to do a live boot of any other 64 bit images like the ...
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2answers
36 views

Ubuntu 15.10 unable to detect all CPUs

lscpu lists the following venki@venki-H8DCL:~$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 12 On-line ...
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2answers
218 views

How do I diagnose a sudden slowdown

Running a particularly compute-intensive task on my computer (Tecra W50) for more than a few seconds causes it to become very slow. Performance does not return to normal after the task completes. ...
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77 views

Reduce load average on Ubuntu 14.04

How to I reduce the average CPU load on Ubuntu 14.04? I have a low end PC and whenever I start Google Chrome the load average is at ~2,5-3 My Computer Specifications are: Intel(R) Celeron(R) CPU ...