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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Psensor only shows HDD and CPU usage, not temperature

Okay I have psensor installed, I installed lm-sensor and some other related packages, I ran sensors-detect and didn't come up with anything. It is only showing my HDDs, and my CPU usage not ...
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0answers
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Not shutting down: CPU soft lockup (plymouthd) / self-detected stall on CPU

When I click Shut down in the system menu, it does not turn off but repeatedly shows the errors below. MMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [plymouthd:4693] INFO: rcu_sched self-...
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35 views

AMD A10 8700p overheats on Ubuntu 16.04

I recently got a HP Envy 15 ah150na laptop with an AMD A10 8700p CPU and and R6 8700p integrated graphics card. The problem is that the CPU temperature after 10-15 minutes of usage goes up to around ...
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1answer
52 views

CPUs are overused with internet browsers, maybe Ubuntu+i5+JS don's work well

I'm having trouble with the Ubuntu 14.04 on PCs Intel NUC i5 8 GB RAM SSD HD. They are used mostly with Google Spreadhseets and are high usage of internet browsers and JS applications. PCs are quite ...
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3answers
273 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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0answers
34 views

Can't scale frequencies of AMD Turion CPU, it always jumps to lowest

I have similar problem to this: Can't scale frequencies, always jumps to lowest . This time on a HP Compaq 6715B notebook with AMD Turion CPU TL-58 and powernow-k8 cpufreq driver : $ cpufreq-...
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0answers
50 views

Software and Updater consumes 100% CPU in Ubuntu 16.04

I've upgraded my laptop (Lenovo Z50-70) which has an i7 CPU and 8Gigs of Ram to Ubuntu 16.04 from 15.10. I've been installing updates consistently. I'm using ubuntu with Gnome desktop environment (GDM)...
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1answer
22 views

HIgh cpu usage for Compiz process on ubuntu 14.04

I'm having very annoying issue: the compiz process eats up to 50-60% of the CPU resources on my dedicated server. I'm not really experienced with Ubuntu. I need to help to disable visual effects and ...
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0answers
24 views

Laptop error problem

My laptop Acer travelmate 7750Z, Ubuntu 14.04 Intel core B960 gives every few weeks an error during working. Screenshot: Do I need a new processor?
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3answers
553 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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0answers
30 views

Ubuntu 16.04 random freezes every few hours

I am using an old AIO PC with a core i5 and every few hours the pc just freezes and doesn't respond to commands, sometimes I get a message saying, BUG: CPU#3 stuck for 23s! In these cases the magic ...
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1answer
113 views

Kswapd0 using 100% of CPU

I've got a mini server running (L)ubuntu 14.04.3, kernel 3.4.39. Every once in a while, the process kswapd0 will use 100% of my CPU power, even though I only use about ~20% of my RAM at that time. ...
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3answers
6k views

How do I analyze my CPU usage over a long period of time?

I am just wondering if there's any Ubuntu app that can track my CPU usage. The problem is that I am currently using a quad core i5, whilst what I do most in daily usage is just browsing and rails ...
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0answers
10 views

Certified HP server Intel CPU versions for Ubuntu 16.04 LTS?

The web-page http://www.ubuntu.com/certification/hardware/201509-19196/ indicates that the HP Proliant DL160 Gen9 server with processor Intel(R) Xeon(R) CPU E5-2603 v4 @ 1.70GHz has been awarded the ...
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0answers
38 views

TLP not working on 16.04

I installed TLP on my laptop and set it up so that it should switch to powersave when on battery but it's not working. when I run tlp-stat -p this is the output when on AC: --- TLP 0.8 -------------...
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0answers
27 views

(x)Ubuntu becomes very laggy after hours

When I start my laptop, there is no problems : no lag, it's not superfluid but it's OK. After few hours (~4/5 hours) Ubuntu and Gnome suddenly become very very slow : 3 or 4 seconds of delay when I ...
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2answers
519 views

Incorrect CPU temperature reprted (AMD fx-6300

Psensor and hardware sensors indicator both report an incredibly low temperature on my AMD fx-6300 cpu, below 20 degrees celcius. Below is a screenshot of what it looks like within Psensor: I have ...
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8answers
29k views

Is it normal for compiz to consume 40% of my CPU with no other programs running?

When I have no other programs running, compiz takes up at least 40% of my CPU. Is this normal? If it is normal, is there anyway I could make this program take a smaller percentage?
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0answers
57 views

How i can activate cpu.cfs_quota_us in Cgroup?

How I can activate cpu.cfs_quota_us function in Cgroup on Debian Jessie (raspberry pi 4.1.13-v7+ kernel)? This file not exist in cpu controller after creating the group and I didn't find how I can ...
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1answer
76 views

Why isn't Nvidia handling all graphics smoothly?

First post, but I've been lurking here for a while. I have been using Linux since Red Hat 7, I've recently upgraded to Ubuntu 16.04. It is my first Linux where the GPU is actually properly supported....
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2answers
11k views

How to change CPU fan speed on ThinkPad?

I checked this post on AskUbuntu, but like the OP my BIOS does not have a setting for 'smart fan'. My BIOS though has something similar called 'Thermal Performance' wherein it's already set to maximum ...
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1answer
91 views

CPU frequency scaling stuck 2.80 Ghz and it's not going down

I'm using Ubuntu 16.04 LTS with gnome desktop. I set the governor to "ondemand", but the CPU still runs at top frequency. I tried many things, but it's stuck at 2.80 Ghz for hours. "scaling_max_freq" ...
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0answers
17 views

Ubuntu Touch number of CPU cores

I have the Meizu PRO 5 Ubuntu edition and it seems it is using 4 cores. (top, cpuinfo) This phablet is running on Samsung Exynos 7420 64-bit 14nm octa-core (A57+A53) CPU, so where are the missing ...
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4answers
79 views

Best desktop enviroment for old PC [duplicate]

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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10answers
340k views
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0answers
27 views

Wrong number of cpus in system monitor

I am running Ubuntu 16.04. I have two Intel Xeon E5-2683 V4 CPUs. Each CPU has 16 cores and 2 threads per core, but the system monitor only shows 58 processors. Why does the system monitor only show ...
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0answers
79 views

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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0answers
12 views

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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0answers
17 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 ...
0
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1answer
55 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 ...
7
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1answer
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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2answers
426 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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0answers
18 views

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 ...
0
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1answer
99 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 ...
0
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1answer
31 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
463 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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1answer
250 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 2....
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2answers
37 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
292 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) ...
0
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2answers
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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0answers
16 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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0answers
146 views

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 ...
0
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1answer
139 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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6answers
57k views

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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1answer
43 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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1answer
22 views

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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1answer
322 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 ? ...
2
votes
1answer
11k 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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1answer
33 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 ...