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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2
votes
1answer
106 views

How to hide command line output

I understand that computers work faster if they don't have to output data to the user, so I'm wondering if there is a way to hide the printed lines in the Terminal, and eventually just print any ...
2
votes
1answer
16 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 ...
-1
votes
0answers
16 views

Dummy output and password required to shutdown after some logins [closed]

Sometimes after turning the computer on I run into multiple issues: no sound is enabled - everything is redirected to what's shown as Dummy Ouptput (under the default sound dialog) no input audio ...
1
vote
0answers
39 views

Screen darkens, greys out, and freezes when running sofware centre or update manager

I'm running Ubuntu 15.04 on an acer aspire one 522 netbook. I do have a problem that a month of searching this Q&A Site still hasn't answered. Launching the Ubuntu or Lubuntu software centre or ...
0
votes
0answers
44 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
1answer
20 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 ...
0
votes
0answers
26 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, ...
1
vote
0answers
33 views

Do I have to install any additional driver for my usb 3 port in ubuntu 14.04 LTS?

I installed ubuntu 14.04 lts in my new laptop (HP 250 G3 Notebook). It has a usb 3 port with it, but surprisingly the speed of usb 3 and usb 2 is same. I have attached the output of lsusb Bus 001 ...
0
votes
0answers
64 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
28 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
1answer
44 views

Why do I get the same FPS with “optirun glxspheres64” in comparison with just “glxspheres64”?

vblank_mode=0 optirun ./glxspheres64 Polygons in scene: 62464 (61 spheres * 1024 polys/spheres) Visual ID of window: 0x20 Context is Direct OpenGL Renderer: GeForce GT 750M/PCIe/SSE2 218.417930 ...
0
votes
0answers
53 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
1answer
18 views

How do I measure the total server resource usage for commands?

I am using Ubuntu 12.0.4 64 bit server edition and I have to measure the server performance for some specific programs. Is there a way to record the total System resource usage by a specific command? ...
0
votes
0answers
32 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
53 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 ...
4
votes
1answer
118 views

How do I diagnose a sudden slowdown

Running a particularly compute-intensive task on my computer (Tecra W50) for more than a few seconds causes it to become very slow. Performance does not return to normal after the task completes. ...
2
votes
2answers
45 views

nVidia GeForce 2 Aopen MX-400 64 Mb video card is slow [closed]

My motherboard burned out and I replaced it with another lga755 with a better processor, E8400 4 core vs E5200 2 core, with more memory, 6 Gb. The motherboard did not come with integrated ...
0
votes
0answers
29 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
1answer
42 views

GUI for monitoring CPU usage (including L1/L2 caches) in real time?

Is there any GUI available in Ubuntu which shows detailed CPU usage, including L1/L2 cache usage? So that while running a custom program, I can monitor the CPU utilization in detail. The default ...
1
vote
0answers
50 views

Choose Different Screen Layouts with Latest NVIDIA Driver Dual 4K Setup

I just bought a ASUS PB287Q monitor and hooked it up (via HDMI) to my ASUS N550JK-DS521H. Everything works...but the performance of rendering on the external (right) monitor is terrible. So bad I can ...
1
vote
3answers
60 views

Speeding up ubuntu machine [closed]

Does below command improved performance of the machine: sudo sync && echo 3 | sudo tee /proc/sys/vm/drop_caches I know this is for freeing RAM. Please guide
1
vote
1answer
54 views

Sluggish Desktop Experience on Laptop with External 4K Monitor

I just bought a ASUS PB287Q monitor and hooked it up (via HDMI) to my ASUS N550JK-DS521H. Everything works...but the performance of rendering on the external monitor is terrible. The experience on the ...
0
votes
2answers
35 views

How do I deal with mplayer2 forwarding latency?

I use smplayer as default player on ubuntu 15.04, which is provided by mplayer2 now. It takes mplayer2 more than 3 secs to forward a video, which is unacceptable. On ubuntu 12.04 or 14.04 LTS, ...
0
votes
0answers
13 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
2
votes
2answers
62 views

Compilation time slow on a single computer

We are experiencing some really slow compilation times on a single desktop computer that we use as the primary workstation for a research project. Compiling our codebase on this computer takes 42 ...
0
votes
1answer
38 views

Performance problems with Ubuntu 14.04

My computer's performance (A 2012 Macbook Pro, i7 with intel hd 4000), specifically with gaming, has been lacking in Ubuntu compared to my other operating systems, OS X and Windows. I feel like this ...
0
votes
0answers
20 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
41 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 ...
1
vote
3answers
61 views

Does shutting down and restarting Ubuntu have an effect on its performance?

This article talks about how OS's accumulate all sorts of unnecessary things in the RAM due to continued use. Is this the case with Ubuntu too? Just curious as my computer has been getting a bit ...
1
vote
1answer
59 views

No hardware events in perf list on PC w/ Intel Core i7-4770 CPU running Ubuntu Server?

I have dell desktop with Intel Core i7-4770 @ 3.4GHz CPU. There, I have installed Ubuntu server 15.04. Afterwards I have install linux-tools-generic and linux-tools-common to install perf tools. ...
1
vote
0answers
140 views

Shutdown Takes too much time in Ubuntu 15.04

I upgraded Ubuntu 14.10 to 15.04 about a month before, after upgrading I'm facing too much of performance issues and it also takes too much time to shutdown. Is there problems with this new release of ...
1
vote
1answer
59 views

CPU benchmarking utility for Linux

I am looking for a utility that will benchmark CPU performance under single and multi threaded instances. At present I have an old rig with a dual core CPU (E7500) at 3.6 Ghz and I am looking at ...
0
votes
0answers
241 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 ...
1
vote
0answers
58 views

Video Editing Performance?

I'm relatively new to Linux but love using Ubuntu and it has become my preferred OS for daily use. I am really disappointed I don't seem to ba able to edit video on Ubuntu 14.04 with my Lenovo ...
2
votes
1answer
310 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
57 views

How do I use dmesg to diagnose slow boot speed?

I've installed Ubuntu 15.04 on a new Lenovo Thinkpad S440. With 8 gig of RAM, an i7 and an SSD I expected Ubuntu to boot in a few seconds, instead it seems to be taking almost a minute. I've read a ...
1
vote
1answer
115 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 ...
0
votes
1answer
109 views

ubuntu 14.10 too slow to open VLC player

my ubuntu 14.10 is too slow .It takes about a min to open a video in VLC media player. Even other software are too slow to open. My Laptop is new & has high end specifications.
0
votes
1answer
30 views

Ubuntu 12.04 lags very bad at my laptop

So I recently decided to change from Windows XP to Ubuntu 12.04 on my crappy 1gb RAM & 1.6GHz laptop. The problem is that it lags A LOT. Like first 5 minutes I can use it fine but then it just ...
1
vote
0answers
60 views

Home Computer Build Designed For Optimized Performance With Ubuntu

Perhaps this is not a question for this forum, but I hope I can get some good info here. I currently dual-boot Ubuntu on a MacBook Pro. The OS performance is unreliable on my laptop, so I am hesitant ...
0
votes
2answers
77 views

Can I really experience performance in a LiveCD context?

I don't know exactly how LiveCD works, but I know that everything is happening on the RAM memory, so a great part of the RAM would be used by the OS itself. Can I really experience performance in a ...
0
votes
1answer
103 views

Slow/laggy system on a mid-end PC

I just moved from Windows 8.1 3 days ago (which was running very good in terms of performance and multi-tasking). I'm using Ubuntu 15.04 with KDE Plasma 5.3 installed and the system isn't fast as it ...
1
vote
2answers
281 views

Ubuntu 15.04 intalled on older computer is running slow [duplicate]

I just installed Ubuntu 15.04 on an older computer because it could not handle many of the features included with Windows Vista. I thought I would try Ubuntu to improve performance. However it isn't ...
0
votes
1answer
45 views

How can I improve my system performance?? As it is working very slow [duplicate]

I have Dell Inspiron N4050 i5 2gb. Am running dual boot (Ubuntu 14.04 along with Win7). As I am a new user (more specifically learner). In Ubuntu am facing several issue regarding the performance. ...
0
votes
0answers
21 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 ...
1
vote
0answers
263 views

Ubuntu Host in VirtualBox has long delays before startup

I run Ubuntu in virtualbox on a windows 8.1 host. After some updates of the guest, it started to have lags/delays before it starts. It also shows some warnings. After it starts, everything is fast. ...
1
vote
0answers
133 views

Vivid / Poor performance on Football Manager 2014

When I launch a new game, I only have one star for performance, even for 1 league only, despite a good configuration for this (i don't want 3D view of matches): Xubuntu Vivid x64 / Intel Celeron ...
0
votes
1answer
58 views

My Ubuntu on AWS is very slow

I have Ubuntu 14.04.1 install on AWS and it was getting slower and slower Not knowing what to do I updated and upgraded my system It did not help Testing disk usage (df -h) I get Filesystem ...
0
votes
0answers
26 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 ...
1
vote
1answer
73 views

Slow raid5 resync with WD Green drives [closed]

The Question Why is my initial resync so slow? Initially cat /proc/mdstat reported ~ 30000K/sec. I then increased /sys/block/md0/md/stripe_cache_size from 256 to 16384. That increased the speed to ...