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.

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6
votes
1answer
1k 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
586 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
2k views

What is the performance difference between booting Ubuntu from a USB v2 and USB v3?

I like the idea of booting from a usb drive. I probably have 50 USB 2.0 drives of various sizes, but I only have 2 USB 3.0 drives currently. If I boot from a USB 3.0, will the increased read/write ...
4
votes
1answer
166 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
139 views

Constant HIGH CPU Usage - even after reboot with no applications

Here is a PROBLEM, a lists of my ATTEMPTS to solve it, and a PLEA for help: [As indicated, I have read all similar 'answered' questions, and have not found an answer that works for me.] ...
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
163 views

intel_powerclamp: Start/Stop forced idle injection

I do not really knows when it started, i just upgraded from 13.10 to 14.04 and was about to do something about graphics performances (unity felt sluggish). That situation already lasted for 6 months I ...
2
votes
1answer
50 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 ...
0
votes
0answers
56 views

Ubuntu 14.04 64bit Slow performance

I am using ubuntu 14.04 64bit version in my following configuration system. CPU - Intel i3 3.30 Motherboard - Intel DH61BF Ram - 4GB DDR3 Hard disk - 250GB sata When i was using Ubuntu 13.04 32bit ...
0
votes
0answers
54 views

ATI Graphics Card Problem

I have some problems with my graphics card. I am using Ubuntu 14.04.1 64-bit and I installed my graphics card without any problem, but when I open the ATI Control Panel, it always shows it's in the ...
0
votes
0answers
30 views

Shutter very slow and laggy?

Shutter is very slow and laggy and I'm not sure why. I've tried to change settings to "Do not save file automatically" and "Do not copy anything to clipboard" but it's still incredibly slow. I have it ...
0
votes
0answers
31 views

Very poor performance after regular updates

Recently my install of 13.10 decided to go all wonky on me. It did some kind of system update and then I got that lovely black screen after on boot. After many efforts to fix it I did a dirty upgrade ...
0
votes
0answers
15 views

How can I log per-process resource usage?

I am encountering a reproducible system slowdown when I perform a given action on the desktop. I have observed some odd behaviour running top and iotop in separate TTYs. How can I log resource usage ...
0
votes
0answers
47 views

Can't install Ubuntu 12.04 32bits on a modern PC - So slow!

I'm working on a project that only works on Ubuntu 12.04 32 bits. I've been given a modern computer to work with but the installation of Ubuntu is driving me nuts. The machine specs are: MoBo: ...
0
votes
0answers
447 views

Radeon R7 M260 & Proprietary Drivers: Bad Performance

I recently bought a Dell Inspiron 5547 laptop and installed Ubuntu 14.04 on it. Almost everything worked great out of the box. This laptop comes with two graphic cards, an Intel HD Graphics 4400 and ...
0
votes
0answers
103 views

Ubuntu 14.04 Not recognizing GPU, EXTREMELY slow performance

I recently installed Ubuntu 14,04 on my Compaq Presario CQ62 laptop. Specs: 4GB 1600 MhZ DDR3 RAM Ati Mobility Radeon HD 4250 GPU AMD V120 CPU, 1 Core, 2200 MhZ I have installed Ubuntu using the ...
0
votes
0answers
62 views

Kubuntu is significantly slow to start some of the programs in X window

I have Kubuntu 14.04. There is no performance problems other than this. Since the installation of the OS some programs like Dolphin, Gweview, Dragon Player and Muon Discover take a couple of minutes ...
0
votes
0answers
86 views

Google maps brings down performance, even after close

I'm using Ubuntu 12. Google maps are very slow on my laptop, but even when I close browser (Chrome or Chromium), the performance goes down significantly. It stops every 3-4 seconds for about a ...
0
votes
0answers
85 views

LibreOffice (Calc) consumes all of the available RAM memory

I am having problems with LibreOffice's memory consumption. It didn't change much since 12.04 - I have tested it in Ubuntu 12.04, 13.04, 13.10 and 14.04 and didn't notice any significant differences. ...
0
votes
0answers
86 views

Ubuntu behaving very slowly: 2 hr boot time (ata1 hard resetting link / device reported invalid CHS sector 0)

I have a fresh install of ubuntu 14.04 as a dual boot with windows 8.1 on my HP Pavillion laptop. The windows 8 partition works fine (i.e. boots quickly, performs well etc). The Ubuntu partition is a ...
0
votes
0answers
106 views

Configure samba to fully use a gigabit connection

Is there a way to configure Samba in a way so that it can actually fully use a gigabit LAN connection when only performing a single big (>10GB) file transfer? On several Ubuntu servers in several ...
0
votes
0answers
43 views

If I change desktop environment will I loose all settings and software I already have. Ubuntu to XUbuntu

I installed Ubuntu 14 (64bit) and later I found that Xubuntu is more lighter. I would like to have better performance than visually appealing UI. I work on ruby on rails and I have setup everything ...
0
votes
0answers
231 views

slow hard disk Ubunto 14.04 ext4 on thinkpad dual boot

Ext4 - is it slower? Have a Thinkpad with 8GB drive , 4 processors. Intel® Core™ i3-3110M CPU @ 2.40GHz × 4 . Ubuntu 14.04 LTS with updates applied. File reading is very slow. IDE STS hangs when a ...
0
votes
0answers
110 views

Extremely poor performance after graphics card upgrade

I have an AMD a10-5800k APU that I was using for graphics because it has integrated graphics. Knowing that I can't use AMD Dual Graphics on Linux, I got a dedicated card anyway because I can use Dual ...
0
votes
0answers
818 views

High CPU load - Ubuntu 14.04

I noticed that sometimes when browsing (with other processes in the background), I get very high CPU load for the browser process (over 100%) and the computer becomes really slow. I tried switching ...
0
votes
0answers
318 views

WIFI performance poor on lenovo X201 running Ubuntu 14.04

I am running the latest Ubuntu on a Lenovo thinkpad X201, but noticed that the networking with wireless was performing poorly. To confirm that it was not the router or any other external source of the ...
0
votes
0answers
169 views

“not authorized to perform operation” message in Xfce remote desktop

On ubuntu 14.04 i installed Xfce to maker remote desktop working. when i rdp to the machine and while performing some tasks like mounting removable usb media I get "not authorized to perform ...
0
votes
0answers
108 views

Youtube is playing at the wrong speed - maybe soundcard related

In the last couple of days I noticed that videos on Youtube and the Artistworks music school were playing slower than they should. I've checked this in Firefox and Chrome. Chrome is using html5 on ...
0
votes
0answers
72 views

surface pro/micro SD performance comparison question

I installed Ubuntu 14.04 on my microsd. I put / on 15 gig partition and /boot on 1 gig partition on the hard drive. Memory never gets past 2 gig but I created a swap just because. I can't figure ...
0
votes
0answers
439 views

Ubuntu 14.04 sluggish performance

I have a very recently build gaming rig and i installed ubuntu 14.04 on it because i hated windows 8. The problems that i am having are weird sluggish performance when dragging windows or selecting ...
0
votes
0answers
55 views

Different performance graphics cards

I have installed Windows 8.1 update 1 and Ubuntu 14.04 on my laptop HP ProBook 450 (with i5 and AMD HD 8750). I'm playing Dota 2. With the same settings in Windows and in Ubuntu, I get different ...
0
votes
0answers
295 views

Video card Radeon HD 7770 bad performance using power point running presentation

my problem started after i installed ubunutu 14.04, when i was with ubuntu 13.10 i configured my video card with FGLRX working perfectly. But know when i install any of the both alternative of FGLRX ...
0
votes
0answers
70 views

OpenGl, Hot swap on and off to boost performance

So, I have and Amd Radeon Card 8xxx Series and runs games beautifully on my windows partition, If it weren't for the fact the my steam account wasn't mostly windows only games i would have done a ...
0
votes
0answers
30 views

Does the installation of different OSs in the same machine reduce the performance of it?

I'm trying to install Ubuntu on my computer based on Windows 7 SP1. Does the installation of different OSs in the same machine reduce the performance of it? What about of my case? Thanks a lot!
0
votes
0answers
32 views

Ubuntu 13.10 ultra sluggish

I installed Ubuntu 13.10 a week ago, and have installed it three times since. The reason: Every time I installed it. With all updates. Just restricted extras. 3.Nothing but the system, I got a ...
0
votes
0answers
121 views

IPSec Offload support in 82576GB controller for Linux

Due to migration of servers to cloud computing, we bought several NICs that support mechanisms like SRIOV and VMDQ. Furthermore, as security risk was also a concern and we did not want to create more ...
0
votes
0answers
77 views

Improve performance etc for full-disk-encrypted drives

I have an old laptop (AMD A6-3420M APU) running Ubuntu 13.10 in wubi. On this laptop I use VirtualBox to run an an Ubuntu 12.04 VM. The Ubuntu 12.04 image has full disk encryption and home folder ...
0
votes
0answers
115 views

Sometimes my Ubuntu 13.10 is slow and the mouse leaves a trail, on a high end PC

I'm using a gaming PC but Ubuntu randomly boots slow. I mean if it's slow, it's slow all the time until I restart. If it's fast, it's fast all the time until I restart. I have tried installing the ...
0
votes
0answers
174 views

Very Slow SDXC Card Read/Writes

Recently took my laptop which had Windows 7 on it and did a fresh install of Ubuntu 12.04.4 64 Bit. The laptop has a 128GB Class 10 Kingston SDXC card installed. I used the card in Windows without any ...
0
votes
0answers
155 views

Ubuntu 12.04 Sever is running slow and not using full ram

I have a ubuntu VM of 12.04 server virsion and it is running on centos. VM have 8GB of RAM and 1 core processor for it. I amd running following application on it hadoop 1.0.4 hbase-0.94.12 ...
0
votes
0answers
26 views

Laptop is very slow if its not using power cable

So if I only use laptops battery my laptop is very very slow. And when I use power cable there is no problems. Is there a some powersaving or something and how can I fix it?
0
votes
0answers
112 views

Numerical performance of Intel's 4th generation vs 3rd generation cpu's on ThinkPad

Maybe a stupid question, but any feedback would be appreciated! I just purchased a new pc in order to run the latest Haswell cpu on some numerical benchmarks. To my surprise, I found that the exact ...
0
votes
0answers
142 views

Fix Slow Graphics Performance on Ubuntu 13.04

I'm using Ubuntu 13.04 slow performance. Then I upgraded the OS but graphics card was not starting at low level. my system config.... Memory 2.0Gib Processor AMD Athlon(tm) 64 X2 Dual Core ...
0
votes
0answers
74 views

Ubuntu Touch phones/tablets as a desktop/laptop replacement

I read that Ubuntu Touch in docking mode will share the phone usb port to transfer video and audio to an HDMI monitor, usb devices data like keyboards, mouse and maybe external hard drives and ...
0
votes
0answers
13 views

stop ubuntu polling during suspension

Problem is Ubuntu is continually polling for devices during suspension. These polling's take place on pcie devices my laptop doesn't connect devices to possibly. They are on a cpu which could have ...
0
votes
0answers
271 views

Ubuntu 13.10 extremely slow and laggy

i recently installed ubuntu 13.10 and its been extremely slow ever since. The annimation that appears when you open or close an application takes about 15-20 seconds to complete. I have searches the ...
0
votes
0answers
105 views

High Memeory usage on 12.04

System : Ubuntu 12.04.3 LTS (GNU/Linux 3.8.0-34-generic x86_64) I am using webmin to see the system since i am not a Linux Expert. Since last week there is an unusual memory usage in my system. Is ...
0
votes
0answers
53 views

ZFS ARC with zcache?

I installed Ububtu server as home NAS. NAS is using ZFS as filesystem on main data storage. MY understanding that ZFS uses plenty of memory for ARC. But I'm not sure if ARC acts as linux cache, and ...
0
votes
0answers
309 views

why firefox 25.0.1 tack high cpu usage?

While i update my firefox to 25.0.1 in my ubuntu 12.04, It tack a high usage of the cpu, and i have to close it and reopen it to solve it. this problem happened as when i update my firefox. In last ...
0
votes
0answers
238 views

More than FOUR minutes to boot up my Ubuntu 12.04. What could be the problem?

I cannot tell exactly when this happened, but surely after upgrading to Ubuntu 12.04, but on my last bootup it lasted from selecting the distro on the GRUB menu to full usability 4 minutes 22 seconds ...