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
594 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
169 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
74 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
109 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
659 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
1k 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 ...
0
votes
0answers
108 views

Stuttering and slow graphics in Ubuntu Gnome 14.10

I recently installed Ubuntu Gnome 14.10 and every time there are 2 or more applications windows open everything lags(especially the activity overview and when chrome or rhythmnox is open). It's a HP ...
0
votes
0answers
24 views

Slow performance on good hardware? 12.04

I am experiencing slow performance on good hardware, here are my specs: Ubuntu 14.04 LTS Memory: 8 GiG (7.7 Usable) Processor: IntelCore i5-3210M CPU @ 2.50GHz x 4 Graphics: Intel Ivybridge Mobile OS ...
0
votes
0answers
46 views

How to increase Graphics peformance in Ubuntu 14.04 running as a guest in VIirtual Box?

I'm relatively new to Linux, I have played around with Ubuntu for 6 months but not a Linux Expert so please try helping in newbie terms I have Ubuntu 14.04 Running as a Guest in a Windows8.1 Host ...
0
votes
0answers
56 views

Lagging performance on Lenovo E530 running 14.04

I'm having persistent lagging problems on a Lenovo Thinkpad E530 currently running 14.04 but have also had them with 13.10. The system has a an i3 processor, 4GB RAM, 500GB Toshiba SATA-3 HDD and an ...
0
votes
0answers
59 views

Why is my read speed limited to 40 MB/s (< 25 %) reading from ext4 when compress-force is zlib and there's no CPU usage?

I'm moving data from an ext4 filesystem on a HDD connected with USB 3.0 which usually reads and writes with 170 MB/s to a btrfs subvolume on a SSD which usually reads and writes with 360 MB/s with ...
0
votes
0answers
35 views

Kernel Tuning Tools?

How to improve performance of a Kernel ? Are there any tuning tools to improve Kernel performance ? Thank you.
0
votes
0answers
71 views

Ubuntu running slowly after accidentally filling hard disk

Ubuntu 14.04 Several days ago, I was running a program which creates large text files and accidentally filled the hard drive. Ubuntu seemed to be doing just fine. The process was still running, and ...
0
votes
0answers
30 views

Sudden sluggish performance of ubuntu system

since 3 days a very important system at my workplace started a most peculiar behavior. There is no internet connection on that PC and no updates have been made. When I started the PC 3 days ago after ...
0
votes
0answers
19 views

How to: autocreation of system performance / health log?

I want my system to create file with a history entries filled by: exact time CPU, GPU, HDD temperatures network total up/down bytes RAM and swap % usage Less important: CPU, GPU, HDD loads ...
0
votes
0answers
71 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
40 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
34 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
17 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
54 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
506 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
125 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
78 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
119 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
140 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
195 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
143 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
52 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
275 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
122 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
895 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
346 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
156 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
73 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
508 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
57 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
319 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
86 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
139 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
89 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
130 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
201 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
173 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
238 views

Which is the light one? Openbox or IceWM for ubuntu 12.04 LTS?

Which is the light one? Openbox or IceWM for ubuntu 12.04 LTS? i want to install on Ubuntu LTS, and i really need it because the hardware accelerate of unity 3D make my battery drain faster on ASUS ...
0
votes
0answers
240 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 ...
-1
votes
0answers
11 views

Building a cluster

How can i build a cluster of several machines, so that i can have one single monitor and keyboard on the master and it seems to be one single machine but with almost all the resources of all the nodes ...