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
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
435 views

KVM guest performance impacted by very long virtblk disk wait times

I have several KVM guests running on Ubuntu 14.04 using libvirt. Their performance is very poor. The intermittent nature of the poor performance with an order of magnitude variability in simple ...
0
votes
0answers
41 views

15.10 very slow during file operations, despite 16GB RAM good CPU and no apps running

Every time I move or extract a big file (example: 1GB), or when I delete a directory containing a lot of small files, Ubuntu becomes extremely slow: the mouse stops moving (or only moves after a ...
0
votes
0answers
46 views

Degrading streaming video performance (Google Chrome and 15.10)

I'm currently running Ubuntu 15.10 and the latest beta of Google Chrome 48.0.2564.48, and whenever I try and stream video through Chrome, performance drops off rapidly. I can start a video, but after ...
0
votes
0answers
135 views

Ubuntu 15.10 64 is very slow on Four Core i7 16GB of Ram

I'm very new to Ubuntu. I came from a Macbook pro to a Dell Latitude E74400 i7 16Gb of ram. Ubuntu is terribly slow even if I reinstall it. It laggs when I work with it, opening multiple windows. ...
0
votes
0answers
71 views

Why my desktop Ubuntu system has lag when CPU is not full?

I have a desktop workstation installed with Ubuntu 14.04. It has i7-5820 CPU, 6 cores 12 threads. When I run my 10-threads code which takes up 80-90% CPU usage. (See monitoring statistics below). I ...
0
votes
0answers
52 views

System performance drop when adding a second monitor (zbook - ATI)

i have been trying to find a solution for this but can't quite make sense of it. I have a Zbook14 with hybrid ATI/Intel graphics card (AMD Radeon R7 M260 Series). Everything works like a charm when ...
0
votes
0answers
280 views

Gnome 3.18 Activities overview and application list very slow with Ubuntu 15.10

Ok, any help would be great: After updating to 15.10 and Gnome 3.18, the activities overview has become very unresponsive. Arranging windows from desktop to desktop is slow and when opening and ...
0
votes
0answers
14 views

starting apps from kde menu are delayed about 2 seconds?

I got an immediate start when I do run applications like dolphin from terminal but when I do click on them in KDE menu it takes about 2 seconds to fully run, I see the icon beside cursor bouncing ...
0
votes
0answers
24 views

Slow Perfomance overall

could anyone tell me how to improve my system performance? It is very slow and I do not know the purpose of it. One idea that comes to my head is that my laptop is quite old, but I can recall that a ...
0
votes
0answers
459 views

Very poor performance drivers for Intel® HD Graphics 4600

I am new to Ubuntu and Linux. I have a HP Envy 17'' laptop and it comes with an i7-4710HQ processor with integrated Intel® HD Graphics 4600. I have Ubuntu 15.04 installed and I also installed the ...
0
votes
0answers
48 views

Slow performance on HDD - need advice how to tune it!

I have a MyCloud with a 3TB harddrive. It's incredibly slow when transferring large files over the lan (files about 1gb, give or take a few MBs). I think it has to do with the read/write-speed of the ...
0
votes
0answers
98 views

Slower than advertised SSD performance

I've just assembled new machine: Asrock AM1H-ITX, AMD 5350 with AES-NI, 8GB RAM, Samsung 850 EVO 120GB SSD Elementary OS based on Ubuntu 14.04 Advertised read/write of the SSD is something around ...
0
votes
0answers
72 views

Different performance of identical virtual machines

I have a desktop and a laptop both with i7, with 64-bit Win-7 OS. I installed VirtualBox with the same Ubuntu VM with exactly the same resources. I ran the same program into both VM's. The desktop is ...
0
votes
0answers
90 views

Is it possible to name the fastest virtual machine?

If yes, what is it and how is the performance of VM measured ? If no, please explain why it is impossible. I have an idea to test several VM by running C code and measuring time. One more thing, how ...
0
votes
0answers
42 views

Issue with resume from suspend

Hello Ubuntu, I am using Ubuntu 14.04 in Dual boot configuration, alongside Win 10. My machine is an Dell Inspiron 7537. My questions are based on following : Resuming from suspend ...
0
votes
0answers
32 views

How to test the performance of various software raid levels?

I am getting ready to reformat and reinstall the OS on my machine. I run a Postgres server on it that it mostly reads and not a lot of writes. It is backed up to external devices frequently so the ...
0
votes
0answers
16 views

Poor performance from Network adapter with wireless connections?

I'm facing performance issues with my wireless network adapter (or drivers, I'm not sure) on Ubuntu 15.04 and now recently, on my elementaryOS Freya installation. The same works fine when I log into ...
0
votes
0answers
183 views

Ubuntu 15.04 running slow

I used to have a Ubuntu 15.04 portable install on my flash drive - SanDisk Cruzer Edge 8GB. I was fairly satisfied with the performance and usability, but I ran out of space very quickly. I grabbed a ...
0
votes
0answers
98 views

why root user use 100% cpu in ubuntu 14.04?

When I am using top command in Ubuntu system there is root user always use 100% cpu uses and display goes to black and system taking lot of times for other process.
0
votes
0answers
95 views

Why does wifi USB dongle slow down USB stick file copy/transfer?

I am on Ubuntu 15.04 but my problem has been around for a long time in previous releases - I have a PC with a Belkin wifi USB dongle attached using the r8712u driver. Every time I copy a file, ...
0
votes
0answers
129 views

Graphics Driver not satisfied

I have a dell 3542 with Intel® HD Graphics 5500 (Broadwell GT2). and in Ubuntu 15.04 my details says GRAPHICS Intel® HD Graphics 5500 (Broadwell GT2) .but i can clearly see a different in the ...
0
votes
0answers
83 views

Kubuntu 15.04: Random lag spikes in all games

A couple days back, every game (Minecraft, TF2, GMod,...) I played on my laptop had unbelievable FPS drops for ~5 seconds to 1 FPS and then it went back to 30. I noticed when the FPS dropped the ...
0
votes
0answers
63 views

I don't have a graphics card in my machine. Can I still use Ubuntu?

I want to install Ubuntu 15.04 on my pc. My PC specs- 500 GB HDD Intel i3 2.93Gz processor No graphic card is present. Can I use Ubuntu with this Hardware configuration?
0
votes
0answers
122 views

How can I profile Unity (lightdm) in Ubuntu 15.04 to help resolve performance problems?

I'm having some performance issues in Unity on Ubuntu 15.04. The Unity dash lags and many applications lag when being resized or fullscreened on 4k resolution. Let me preface this with a few things. ...
0
votes
0answers
222 views

Ubuntu Gnome doesn't run properly on my laptop

I'm using Ubuntu Gnome 15.04 and it's get hobbled sometimes. for example, when I try to move to some other window, it doesn't move smoothly, or when I watching a video on youtube - it's "spiky".. did ...
0
votes
0answers
52 views

how to boost up ubuntu 14.04 performance in Sony VAIO E series?

I am using Ubuntu 14.04 LTS and getting very low performance. I have 4Gb RAM and intel core i3-2330M 2.20 GHz processor. Is it possible to improve performance?
0
votes
0answers
26 views

what is status “ fsnotify_mark_destroy ” in wait channel?

Recently Iam seeing lot of "fsnotify_mark_destroy" as the wchan state for process .May I know more details on this status
0
votes
0answers
36 views

What should be my Wine configuration

I use a laptop with 3rd Gen CORE i5-2410M with 6 GB of RAM. I wanted to know what would be the best configurations(suggest me regedits and other things) for wine that could be done for playing games ...
0
votes
0answers
79 views

Slow performance (Ubuntu 14.10) on core i7 (mobile 3rd)and 8 GB of ram.(Asus k56cb)

community I been using windows for ages, but I wanted to try something new, and get some experience on Linux based OS. So I have formated my ssd and installed Ubuntu, installed updates and needed ...
0
votes
0answers
310 views

Perfromance in gaming, In Ubuntu 15.04

I have problem with game performance, for example in War Thunder when I'm setting up a lowest graphic settings I have around 20-30 FPS (same situation in CS:GO), it's very poor performance for my ...
0
votes
0answers
25 views

Loading of applications in ubuntu freeze my system for a while

I have a very powerful ubuntu system with core i3 4370 processor and it works very fast, but it seems it's bottleneck is in harddrive. This log review loading of my hard drive when I try to open ...
0
votes
0answers
27 views

Percona deb download via cloud init very slow

I'm trying to set up a Trusty instance via a cloud init file and the install process is stalling for a few minutes. When I tail the install output with tail -f /var/log/cloud-init-output.log, I see it ...
0
votes
0answers
34 views

Why interface lags a lot when writing to disk and try play games

Ubuntu 14.10 with open drivers (not tested with catalyst) lag when I write data to external USB disk. And if I run Team Fortress 2 the interface lag hard - some mouse movements ignored, keyboard ...
0
votes
0answers
140 views

Slow performance Xubuntu 14.04 - Radeon HD6950

Im having slow video performance on my i5 with 16gb of Ram with a Radeon HD6950. Just installed the xubuntu, updated the system and when i open for example the Firefox or chrome, the video appears to ...
0
votes
0answers
81 views

Ubuntu touch HTML5 performance

I made a simple cordova bootstrap HTML5 app and deployed it on a bq phone. When I open the top right page navigation menu it appears that the slide animation is very slow. The animation is rendered in ...
0
votes
0answers
76 views

How much use of swap space means that I should add more memory?

My system is slow and I am trying to figure out if I need more memory or a better system. I am using Ubuntu with 32 GB RAM. $ free total used free shared buffers ...
0
votes
0answers
59 views

Ubuntu Sometimes with slow graphics and locking

long time since I installed Ubuntu x64 on my machine (Del Inspiron 3421 with Intel graphics) always realized that the graphics were not working as well as they should, I used Ubuntu 4.12 LTS x64 and ...
0
votes
0answers
202 views

Allocate disk space to partitions in a fresh install

I'm planing to do a fresh xubuntu install and am wondering about how I would best partition my hard drives, which are as follows: SSD - 128 GB HDD - 2 TB Right now, running ubuntu, I have the ...
0
votes
0answers
89 views

Performance of KVM on 32 Bit Ubuntu compared to 64 Bit?

Due to hardware failure, I recently grabbed a harddisk out of an old 32 bit machine and plugged it into a new 64 bit system - powered on, everything good, services outage minimised. Now I am planning ...
0
votes
0answers
72 views

Severe lag in Ubuntu 14.10

I am currently having a serious problem in Ubuntu 14.10. This morning when I booted into my computer, The UI of Ubuntu started to give me some serious lag. Normally the OS is perfectly fine, but every ...
0
votes
0answers
169 views

Speed up first launch time of some applications (in this case: filemanager, xfce panel addon)

I installed xubuntu-desktop on my Ubuntu 14.10 and now use its file manager Thunar and its panel addon application menu (link to its docs.xfce.org site). Both programs take extremely long to launch ...
0
votes
0answers
125 views

Extremely poor performance in Ubuntu Server 12.04.5 LTS

I am trying to host a Minecraft server in Ubuntu Server 12.04.5 LTS. For some reason, my computer responds extremely slowly to any executed command or process. When starting up, it can take anywhere ...
0
votes
0answers
94 views

Samba performance on ubuntu server 14.10

I have a desktop machine with ubuntu server installed which I am converting to a docker repo + media server(using samba -no amahi/firefly etc bloatware). Earlier I was using windows 8.1 and while ...
0
votes
0answers
44 views

Graphics Performance

My system specifications are Intel Core i5 2500; NVIDIA GeForce 520GT and I am running Windows and Ubuntu 14.04 as dual-boot . I prefer to use Ubuntu, but the Gaming Performance (Minecraft) is better ...
0
votes
0answers
191 views

Java algorithm performance difference between Linux and Windows

We observe a very significant performance difference of an algorithm in java between Linux (ubuntu) and Windows. The difference is 3x-4x in favor of Windows. Test machine is i3770 quad core (8 logical ...
0
votes
0answers
135 views

Ubuntu 14.04.2 is acting really glitchy and frequently has severe lags and has graphical bugs

Programs will dim and not respond after a while. Opening programs make the screen bug out. Is there a way to fix this without having to reinstall from USB/CD.
0
votes
0answers
111 views

Slow Chromebook Acer C710-2847 after 14.04 LTS upgrade

My Acer C710-2847 laptop is slow after upgrading to 14.04 LTS. I tried to watch a movie downloaded on it and it was just like a "Slow Motion" movie while it was fine before upgrading. I also usually ...
0
votes
0answers
625 views

Openbox overhead is similar to that with gnome-panel

I just installed openbox via sudo apt-get install openbox. It already has obconf, btw. I noticed that when I logged into my openbox session instead of the one I usually use (gnome-panel and NOT ...
0
votes
0answers
250 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 ...