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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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 ...
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117 views

lm-sensors ubuntu 14.04 core voltages

I am trying to measure the core voltages of my cpu. I installed the lm-sensors, I ran the sensors-detect and I reply YES to all of the question. At the end of the sensors-detect I get: To load ...
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52 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 ...
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0answers
30 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. ...
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0answers
47 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 ...
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0answers
62 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 ...
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0answers
30 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 ...
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155 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 ...
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87 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 ...
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0answers
485 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 ...
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0answers
231 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 ...
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0answers
104 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 ...
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0answers
70 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 ...
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0answers
66 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 ...
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0answers
323 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 ...
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0answers
46 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 ...
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0answers
90 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 ...
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0answers
241 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 ...
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0answers
56 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 ...
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0answers
192 views

Samba performance with NAS

My question is simple : how to get the maximum performance with Samba shares with NAS. Here is my smb.conf file : # # Sample configuration file for the Samba suite for Debian GNU/Linux. # # # This ...
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0answers
29 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!
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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 ...
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94 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 ...
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0answers
63 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 ...
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0answers
96 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 ...
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0answers
133 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 ...
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128 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 ...
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22 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?
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99 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 ...
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0answers
130 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 ...
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0answers
66 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 ...
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0answers
12 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 ...
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0answers
264 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 ...
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0answers
82 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 ...
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0answers
50 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 ...
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0answers
271 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 ...
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0answers
306 views

I can't get Ubuntu Server 12.04/NginX to outperform Windows 2008 Server/IIS 7.5

I am determined to get NginX on Ubuntu Server 12.04 LTS to outperform IIS 7.5 on Windows 2008 Server. For comparison, I am using a Apache Bench and a simple (231 byte) html file. The Ubuntu server and ...
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0answers
212 views

Slow download rate hogging up the WiFi

tl;dr: On one computer, slow network connection consumes the entire bandwidth, affecting both internal wifi adapter and when browsing through a phone modem. comment: I posted this issue on Super ...
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0answers
78 views

Dmesg - mounting takes longer in Lubuntu than in Debian

As an optimization freak, I have noticed for a long time (and many different kernel versions 3.8-3.12) that booting Lubuntu seems to delay 5 seconds when mounting the system partition. [ 4.993151] ...
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0answers
128 views

Disable CPU rendering

I have a problem with the 3D Functions of Unity after the Upgrade to 13.10. I've got a ThinkPad R60 with Intel GMA950 Graphics. Low 3D performance, i know. But Unity worked well since 11.10. My ...
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0answers
29 views

Does kernel influences the performance greatly?

I'm now testing performance of an armel filesystem and armhf filesystem, which are of the same distribution, but different kernels. The performance of the memory of the two filesystems differs a lot. ...
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0answers
160 views

HP Pavilltion dv6-6051er ubuntu 13.10 (and previous versions) black screen after installing amd drivers

I have intel-amd hybrid graphics. Every time after trying to update to fglrx I'm getting black screen or some "low graphics mode", that hangs at some point. Is that even possible to get this working? ...
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0answers
48 views

A lot of lag on Ubuntu 12.10

So just recently I had to update to 12.10 because I had a problem with there being no dashboard only wallpaper when I would log in, so my question was answered and it was fixed. Now my computer has ...
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0answers
50 views

Software Center seems opened correctly, but disappeared suddenly after a second or two

I am trying to access Ubuntu software center to remove some app from my pc, but each time I tried to initiate Ubuntu Software Center, it appeared on the screen for 2 seconds then it disappeared ...
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0answers
41 views

mini.iso build up or break down from full OS?

I have an old portable computer that's only used as a 'music server' Rhythmbox. It was slow with 11.10, but I updated it to 12.04 anyhow. Then, I eliminated a number of things with Synaptic, leaving ...
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0answers
26 views

how to install linux-tools-3.5.0-030500

I installed kernel 3.5 from mainline using the procedure avaliable at http://ubuntuforums.org/showthread.php?p=11391743#post11391743 but when i tried to install perf, its asking for ...
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0answers
53 views

Installed ubuntu 12.10 will not access HD, extreemly slow, keyboard not working properly or mouse

I've just loaded Ubuntu onto my laptop, it had windows XP or 7 before.. It stopped working so I decided to re-install the OS and I went for Ubuntu to give Linux a go and maybe learn about programming ...
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0answers
173 views

NVIDIA driver fails after update on 12.04 using lenovo w520 laptop w/ quadro 1000m display driver

Im new to ubuntu and I am excited to start using it. I have been using it for a day now and am noticing that the OS is hanging a lot. I think this may be due to my display driver not being installed ...
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0answers
209 views

Ubuntu compatibility with new Apple Mac Pro hardware

Apple's new Mac Pro is being released this Fall. The hardware specs look great, but I also don't have enough understanding of hardware, hardware drivers, and linux kernel to make an educated guess as ...
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0answers
95 views

Poor perfomance using 12.04

I installed Ubuntu 12.04 with all the updates needed from additional hardware and system in dual boot with Windows 7 to raise a little the performance of my PC. After installation, Ubuntu was slower ...