Questions about improving the performance/speed of Ubuntu. Note that this is a general tag, and should be accompanied by another tag indicating what kind of performance you are referring to.

learn more… | top users | synonyms

6
votes
1answer
2k views

Is it possible to use both SLI and two monitors at the same time on Ubuntu with Nvidia?

I'm completely and utterly baffled by my inability to use both SLI and a dual monitor setup, even with Nvidia's latest proprietary drivers. Now I have to choose between the ergonomic and productive ...
5
votes
1answer
617 views

Why does Lubuntu automatically reset my CPU into performance mode after a short time?

If I put the CPU mode into powersave or ondemand, it works for some time (5-10 minutes) but after that time Lubuntu automatically sets the CPU to performance mode. (I see it doing sudo cat ...
4
votes
1answer
1k views

Incredibly bad M.2 SSD performance (HP OMEN with Samsung XP941)

I have a new laptop (HP Omen) and have just, after great trials and tribulations, installed Kubuntu on it. The install is a dualboot install along with the factory Win8.1 installation using EFI mode. ...
4
votes
1answer
179 views

What processes should be ioniced for a responsive desktop?

My goal is to intelligently and permanently ionice the processes on my desktop for responsiveness under heavy disk and network load. By permanently, I mean that any changes made to the system will ...
3
votes
1answer
1k views

Why are all hard drives slow on my Ubuntu system?

On my computer, which dual-boots Ubuntu 12.04 LTS (kernel 3.5) and Windows 7, the hard drive speed is very fast on Windows but very slow on Ubuntu. The slowness remains when I boot on an Ubuntu Live ...
2
votes
1answer
23 views

Performance issues for 15.04

I am using a Dell Vostro 270s machine. It was running on 14.04 and I upgraded to 15.04 recently. 64 Bit, 4 GB RAM Most of the time switching between editor and browsers are horrible. It will be ...
2
votes
1answer
364 views

14.04, I have Disabled CPU throttling, but installing Atlas says: “CPU Throttling apparently enabled”

My PC is using ubuntu 14.04, and I need install Atlas. Atlas says: it need to disable CPU throttling, I have done the job to disable it. cat ...
2
votes
1answer
249 views

Very slow Chromium browser

On my machine Chromium is very slow, I had to switch to Firefox where everything works fine. Looks like this is a kind of JavaScript problem (eg. slowed down typing on Facebook), pages loading slower, ...
2
votes
1answer
110 views

Mouse slow proportionally to network usage

Under ANY network loading the Logitech mouse gets slow. At download speeds of as low as 50KB/s, clicks are "grabby," a click will pick up an object and any movement will move it around. At rates above ...
2
votes
1answer
124 views

Performance improvement of Ubuntu on soc board

I am trying to set up Ubuntu on soc board (Cubietruck) which has 8Gb flash, 2 Gb Ram, with external SSD - 128 GB. Currently I have installed the Ubuntu on hard drive. Its performance seems moderate ...
2
votes
1answer
701 views

Slow FX/Unity perfomance in a Intel(r)915G/915GV/910GL Graphics, can be improved?

Since I upgraded Ubuntu to 13.04, last Friday, FX on Unity is very slow. This is a pretty annoying issue, because everything has an FX: Launcher menu, Appl. Switcher and so on. I tried to disable ...
2
votes
1answer
2k views

very high IOWait + extremely slow hdparm -tT

I have been running 12.04 on my Fujitsu Siemens Lifebook E751 for almost a year without any problems, and then several days ago I noticed a very high CPU IOwait that makes the system poorly responsive ...
2
votes
1answer
546 views

12.04 running slow on my machine

Hi I'm very new to Ubuntu 12.04 LTS and having installed it on albeit an old laptop I have found it to be very slow. I have a feeling this is more likely to do with my hardware but I'd appreciate any ...
2
votes
1answer
301 views

Ubuntu EXTREMELY slow on MacMini

So I have an older MacMini. It's not the world's greatest machine, but it doesn't suck that badly: Intel® Core™2 CPU T5600 @ 1.83GHz × 2, 1gig ram I have installed Ubuntu on MUCH weaker machines ...
2
votes
1answer
2k views

Copying to/from NTFS partitions very slow

My whole system slows down when I copy files between an NTFS drive to my local home directory. This is a new 12.04 installation with the latests 12.8 AMD ATI driver. Using Gnome-Shell or Unity does ...
2
votes
1answer
874 views

Ubuntu 12.04 - e1000e slow performance

I'm running Ubuntu 12.04 on a Thinkpad W510. lspci reports this ethernet controller 00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06) By default the ...
2
votes
1answer
1k views

Why are my USB 2.0 ports stuck in low-speed 1.0 mode?

My usb ports are stuck in 1.0 mode, i cant get them to work in 2.0 mode to get my devices to work. i tried a fresh install and rebootng many times, the mouse is slow and jumpy and transfers take a ...
1
vote
1answer
128 views

Ubuntu very slow startup

My new laptop is taking very long (a few minutes) until it reaches the log-in screen. Here is the output of dmesg: http://pastebin.com/MuW79kVd I think the important part is the following gap in ...
1
vote
1answer
124 views

Lubuntu on ASUS 1215

I have a ASUS Eee PC 1215P netbook (Seashell series) and liked to migrate from it's original MS-Windows 7 to Ubuntu/Lubuntu. There are documents on Ubuntu official website website which certifies that ...
1
vote
1answer
94 views

What can I do to restore disk performance on slower Ubuntu VM

I have Ubuntu 12.04 (x86) running under VMware Workstation 10.0.5 on a Windows 7 x64 host. Disk access in this VM is noticeably slow - it takes ages just to start Firefox, for example, and the disk ...
1
vote
1answer
176 views

Change Frequency But nothing different

My problem here: root@LeAn:~/Desktop# sh MinPower.sh CPU MHz: 1200.000 root@LeAn:~/Desktop# lscpu | grep MHz CPU MHz: 1200.000 root@LeAn:~/Desktop# python TestCpu.py ...
1
vote
1answer
522 views

How can I reduce ram usage? And also how can I speed up Ubuntu 14.10?

I just upgraded to Ubuntu 14.10 from 14.04 to find the amount of ram usage has almost doubled well my CPU usage and almost been reduced. When doing little on my computer my ram usage stays at about ...
1
vote
1answer
495 views

Ubuntu 14.04 on Toshiba suddenly super slow

I have a Toshiba Satellite C55 with Ubuntu 14.04 with a 320GD HDD and 6GB RAM. It dual boots with Windows 8 (which I never log into). I usually completely shut-down the laptop only every 2 days. ...
1
vote
1answer
1k views

Virtual machine running painfully slow

I am running Ubuntu 14.04, and I've installed windows 8 on virtualbox. The problem is that it is too slow - even minimizing a windows takes 2-3 seconds. The reason I think this is a problem is ...
1
vote
1answer
293 views

System performance is extremely laggy when copying and extracting files

After a clean install of Ubuntu Gnome 13.10 (64-bit) and the according Gnome 3 (stable) PPA my system (Samsung 900X3C) is extremely laggy, when files are copied to the external hard-drive (HDD) or ...
1
vote
1answer
175 views

Acer C7 Chromebook running 13.10 slow Performance Graphics?

I see others are having simiar issues but I haven't found a fix. Instead of the Intel fdriver, Ubuntu showing gallium driver. Honestly, the performance is sluggish, I wasn't even sure it was Video ...
1
vote
1answer
40 views

Fresh installation running rather sluggish

Good day! Today I installed ubuntu on my home desktop (win 7 is the main OS). To this day I was running it in a virtual machine, but since I will do some of my work from home I decided to install it ...
1
vote
1answer
38 views

How do I find out what is running immediately following login?

A few weeks ago, I must have installed an update or new package that now gives me ~10 seconds of black screen immediately following login, until my wallpaper and the Unity interface appears. ...
1
vote
1answer
293 views

AMD proprietary drivers can only use 2 monitors (ubuntu 13.04)

I have 4 monitors I'm trying to set up in Unity with 2 GPU's (2x AMD HD7970's). Originally I had 2 monitors on each card and tried to set it up that way, but I kept getting the White Screen of Death ...
1
vote
1answer
227 views

Ubuntu being… not too fast?

Yeah I know there is enough of similar questions already - why ubuntu is slow and blah blah. But, seriously. I have pretty ok-ish specs - desktop PC with Intel i3 and 4 GB ram. When I'm on Windows I ...
1
vote
1answer
361 views

How to fix slow-performing machine?

My laptop is a Compaq nx6110 with 1 GB RAM. Before Ubuntu, XP was originally installed on it and was not too slow. But after I installed Ubuntu 13.04 (replacing XP) it is too slow. Even YouTube ...
1
vote
1answer
72 views

architecture-independent performance monitor tool

I got to know "perf" tool in "linux-tools-3.2.0-43" for Ubuntu 12.04 which can monitor the performance counts for some micro-architectures, however, the tool is dependent to the cpu architecture and ...
1
vote
1answer
305 views

13.04 sluggish after installation, live-cd was fast

I just installed a fresh 13.04 on my macbook, but after the installation it's a bit sluggish. Several problems occur: In chromium and firefox, on google.com, the autocomplete search bar lags. ...
1
vote
1answer
361 views

Troubleshooting poor performance with ATI HD 5800 GPU

I am attempting again to solve problems between ATI Radeon HD 5800 series (5830) GPU and Ubuntu. Three months ago I posted: Display difficulties with Ubuntu 12.10, Dual Monitors, and ATI HD 5800 I ...
1
vote
1answer
273 views

Slow and freezy 13.04 system under Nvidia graphics

I have the same problem under 13.04, I have Nvidia C73 (GeForce7100/nForce 630i) and it freezes randomly when I use Unity icons, the system is pretty slow anyway. I tried the opensource x-org driver, ...
1
vote
1answer
151 views

Is there a user-friendly setup to reduce performance and fan thresholds?

My Dell Vostro 4450 with Ubuntu 12.04 started heating (>95°C) when its on heavy load and charging battery (sometimes it freezes in this conditions). When on heavy load but using battery, it stabilize ...
1
vote
1answer
121 views

Unity Dash extremely laggy

I'm running 12.04 64bit. I've been running gnome shell for a while and decided to give Unity a try. I logged out and back in with the Unity Shell selected. I noticed that, sometimes when I press the ...
1
vote
1answer
84 views

Several Questions regarding software on Ubuntu 12.10

So, i recently installed Ubuntu 12.10 but i have problems setting up my microphone, i got a creative sound-card and i already tried ALSA. Second i need to have adobe cs 5.5 installed for studying but ...
1
vote
1answer
43 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
1answer
127 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 ...
1
vote
1answer
882 views

Unity really slow on Radeon 6950

I was wondering if anyone could tell me what I need to do/if my system should be able to run Ubuntu 12.10 smoothly. Asus sabertooth x58, i7 3.2Ghz, 12 GB 1600 DDR3, x2 HD Radeon 6950 2GB, ...
1
vote
1answer
720 views

Is there a simple way to diagnose Unity performance issues?

The Unity Dash and HUD are slow to open, sometimes freezing the system for up to four seconds when I first hit the Alt or Super keys. Is there a simple way to find out where the time is going? The ...
1
vote
1answer
1k views

Xubuntu running incredibly slowly on a relatively sufficient system - How to find the cause?

I recently formatted my hard-disk and installed Xubuntu 12 on my desktop PC, which has the following specifications: Intel P4 3GHz 1.5GB RAM 80GB Hard-disk 128MB Nvidia Video Card (FX5500) In ...
1
vote
1answer
1k views

CPU stuck in energy save mode

A few days ago, my computer started feeling very slow, and looking a CPU usage, I saw that even the simplest processes required a lot of CPU. As far as I can tell, it's because the core are all ...
1
vote
1answer
43 views

Software to track application profile

I am developing a software for number theory investigation, and I am suspicious that is leaking memory. It would be very nice to log the CPU, and RAM usage of this program through some application. ...
1
vote
1answer
586 views

Dragon Age: Origins with PlayOnLinux have low fps

I successfully installed Dragon Age: Origins with PlayOnLinux on my Ubuntu 12.04 but the game is too slow, frame per second(fps) is too low. I played this game so many times in Windows with the high ...
1
vote
1answer
1k views

Low graphic performance with Mobility Radeon HD 4200 under Unity3D

On my Lenovo Edge 11" I got Ubuntu 12.04 installed. It runs with a ATI Mobility Radeon HD 4200 (RS880M) and the additional ATI drivers are correctly installed ("lshw -c video" gives me a correct ...
1
vote
1answer
474 views

Why is my AMD Quad 645 CPU running at 800MHz per core on Ubuntu 12.04

I've just loaded Ubuntu 12.04 onto a brand box with an AMD 645 quad CPU with 8GB RAM. In the BIOS it says, the CPU is running at 3100MHz. However when i boot into Ubuntu 12.04 it says 800MHz? I've ...
1
vote
1answer
934 views

Lightweight browser for ubuntu jaunty

I am looking for a lightweight and stable browser for ubuntu jaunty. I tried midori, however the version from the jaunty-repository seems not to be very stable (crashes for example when going to ...
0
votes
1answer
24 views

Slower boot after installation with encrypted home directory

I have installed Ubuntu 15.04 x64 recently. I have observed that in comparison to non-encrypted installation, the installation with encrypted home directory results in slower boot time: without ...