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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4
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542 views

Ubuntu Gnome 14.10 - desktop performance degraded when certain apps are running

I have upgraded from Ubuntu Gnome 14.04 to 14.10 yesterday using standard Software Updater GUI. The upgrade went smooth, however once upgrade was done I've noticed significant desktop performance ...
3
votes
0answers
113 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 ...
3
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0answers
111 views

Does enabling ACLs have an effect on performance?

I'm looking at a web application that needs ACLs enabled. Are there any benchmarks or other documents to show what potential impact ACL does{n't} have when the file system is under heavy load? Also, ...
3
votes
0answers
435 views

Slow loading of pages (browser performance)

I have Ubuntu 12.10 installed. I notice for certain webpages, firefox and chrome both load them very slowly. In fact, while text content loads quickly, both of the browsers seem to be loading ...
2
votes
0answers
589 views

Upgraded to Ubuntu 14.10 and *everything* lags

Yesterday, I upgraded my Lenovo Thinkpad X1 Carbon (2013) from Ubuntu 14.04 to Ubuntu 14.10. Since then, everything lags, from applications when opened (or 'drawn back in the background' for an ...
2
votes
0answers
211 views

SD card write speed not as advertised, on 14.04 at least

I bought a new SD card and the claimed performance is a long way from my benchmark. Is there something I can do improve the transfer speed when working with this SD card? Information on the disk: $ ...
2
votes
0answers
263 views

What is causing Ubuntu on MacBook Pro to have high CPU usage?

I installed Ubuntu 13.10 on a MacBook Pro 10,1. However, after installing, the kworker process consumes over 90% of CPU usage. I tried the following: (Suggested in this answer) Execute grep . -r ...
2
votes
0answers
169 views

Poor Gaming Performance in ubuntu

I'm seeing a problem in Ubuntu 12.04 and later. When I boot into a video game like Half Life 2, I get massive lag (FPS drops) and my CPU runs at 100%. My system even lags for games like SuperTuxCart ...
2
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0answers
134 views

System very slow except while running Smartmontools selftest

I am quite new to Ubuntu. I have a L430 Lenovo with i5-3210M CPU @ 2.50GHz × 4 , 4GB Ram, dual boot with Windows 7. HDD 500 GB TOSHIBA MK5061GSY. Every 10/15 seconds the HDD light turns on for 2-3 ...
2
votes
0answers
187 views

Slow performance while copying large files to external peripherals

Since I upgraded to Ubuntu 12.10, I have been having many problems with External Storage devices like Hard Disk and pen drives. Sometimes, my external HDD (WD Passport 500 GB) is not detected at ...
2
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0answers
409 views

Hard Drive too slow

My computer has been going too slow since I remember, I tried several tips I found on Internet but nothing worked. After spending some time searching about the problem I found that it might be my hard ...
2
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0answers
285 views

ubuntu 12.10 64-bit consuming 100% cpu power and high battery

I am new linux user, installed ubuntu 12.10 (64-bit) from wubi (getting boot option (windows7/ubuntu). But after opening ubuntu, laptop gets heat up, fan running very fast and performance is very ...
2
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0answers
141 views

What does this fix for non-responsive mouse and keyboard do?

I'm using Ubuntu 12.10 and found that after about 20 minutes of work that my mouse and keyboard became very unresponsive. So I found the following fix (logging in as root - careful!!!): sudo -i To ...
2
votes
0answers
214 views

Minecraft runs really weird in Ubuntu 12.10

When I have Vsync on my framerate is capped to 30 instead of 60. Also, when I go fullscreen the mouse seems to have really fast acceleration and the game looks really jumpy. I could run this on ...
2
votes
0answers
137 views

What flags can I add or are added when loading the kernel to enhance Sandy/Ivy Bridge performance

Are there any flags in Ubuntu 12.04 that I can add or are added already that when loading the kernel it enhances the performance of Sandy or Ivy Bridge hardware? In my case my motherboard is the ...
1
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0answers
59 views

Ubuntu 14.10: Extremely bad CPU Performance and heat

Ubuntu is running extremely slow due poor CPU performance, I have fairly good notebook (4GB ram 2.4Ghz Sandy Bridge CPU) and I know thats the cause is the p_state driver from Intel (the substitue of ...
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0answers
31 views

Benchmark phones using Ubuntu Touch?

I have a few used phones running identical fresh installs of the current Ubuntu Touch for Devices and want to benchmark their performance and attributes in the field such as: processor, battery ...
1
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0answers
20 views

CPU usage varies from 0 to 100. Strange waveform

so I have a strange problem. I'm currently using an old Thinkpad T61 and Ubuntu 14.04 LTS, although this same problem was also happening when I had elementary OS Luna (based on ubuntu 12.04 LTS) ...
1
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0answers
99 views

Ubuntu Hangs a lot even when 3 or 4 apps are working

I have a Samsung NP300E5C-A0CIN Laptop with 2 GB of ram, intel i3 processor. I have installed ubuntu 14.04 alongside windows 8.1 My laptop tends to hang a lot, especially while browsing the web both ...
1
vote
0answers
69 views

enabling swapping cripples system

I am having a strange issue. Essentially, when swapping is enabled (on a swap partition), the system becomes unusably slow even at times when no swapping is in fact occurring. For example, when ...
1
vote
0answers
21 views

Total system failure on ubuntu 14.04

I have a Lenovo ThinkCentre that just had Ubuntu 14.04 installed on it. I installed restricted extras, attempted to turn on the firewall in the terminal, and made a few extra tweaks. Now there is a ...
1
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0answers
78 views

Problems with external harddrive (USB 2.0)

I recently installed Ubuntu 14.04. LTS on a Compaq Presario CQ 60. After having a few problems, I managed it to run more or less stable (freaking Nvidia problems are more or less resolved by using ...
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0answers
222 views

Ubuntu 14.04: very slow response from a 64 bit fresh install on 4 core server

I did a fresh install of Ubuntu 14.04 desktop version (64 bit) on the Dell quad-core (2.3 Ghz) AMD64 server with 8 GB of memory. The graphics card is NVIDIA CK8-04 Pro (System details says ...
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0answers
541 views

Very high IOWAIT times

I have a large system - 128GB, a couple of RAID0 filesystems (6TB and 2TB) with an SSD cache, 8 cores (16 with hyperthreading), running Ubuntu 12.04 64bit. When I try to write a large file I get very ...
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0answers
71 views

Former Windows XP systems are slow after installing 14.04

I just replaced windows XP on our work computer with Ubuntu 14.04 32-bit, and it runs really slowly, only after logging into an account and the screen sometimes flashes. It doesn't fill the whole ...
1
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0answers
47 views

How to fix System Settings window lag

I wanted to open System Settings window and I waited ~30s. Then the window was opened. My machine has an Intel Core i7 processor and 16GB RAM. What produces a lag in opening System Settings? How can ...
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vote
0answers
26 views

Ubuntu won't finish booting

So I have a Windows 8 PC that also can run Ubuntu (my computer is a Dell Inspiron) but every time I try to run Ubuntu it takes about 2 minutes and then shuts off my computer. I don't understand why. ...
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0answers
176 views

12.04 to 14.04 update slows down the system

I recently updated from 12.04 to 14.04 LTS. But the system is very slow. Everything works, but slowly. What could be the reason?. I have 4GB RAM, 10GB swap space and 300 GB of hard disk. Also the ...
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0answers
59 views

RAID6 Ubuntu rebuild - how to calculate best parameters for fastest rebuild

I am doing a resync on a RAID6 array and I am looking at some 2 days to complete. I looked here for hints on how to speed it up, but I have, instead, managed to slow it down! HW details are: 10x 4TB ...
1
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0answers
131 views

Acer C7 Chromebook running 13.10 slow Performance Graphics?

I see others are having simiar issues but I haven't found a fix. Instead of the Intel fdriver, Ubuntu showing gallium driver. Honestly, the performance is sluggish, I wasn't even sure it was Video ...
1
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0answers
42 views

Basics about Nvidia GPU and graphics performance

Well, I'm new in this OS, and I already love it. Before I had Win7 but I'm not coming back. I installed it yesterday in my laptop, a HP Pavilion dv4-1528la with a GPU Nvidia GeForce 105M. Installed ...
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0answers
73 views

Window manager affects 3d performance - how to work around it?

I learned the hard way that enabling compositing VM will affect 3d performance. What can I do today to be able play games on linux with no performance penalty? I guess I could create user with ...
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0answers
79 views

Laptop with Battery is faster than Power Connection at Ubuntu 13.04

Recently, I found a very strange phenomenon on my laptop. When the laptop is plug-in the power, then the CPUs work slowly, but when it is unplugged, i.e. it works with battery, then the CPUs work with ...
1
vote
0answers
72 views

Gnome3 runs faster when running game

I'm having a bizarre, and kind of funny, "problem"(if you can call it such). Ordinarily, Gnome shell is quite choppy on my system. Sure, it's smooth "enough" and fast "enough" but it most certainly ...
1
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0answers
89 views

Streaming video on Win 8.1 vs Firefox on Ubuntu 12.04

I have a dual boot system, Ubuntu 12.04 and Windows 8.1; just an experimental spare computer, the point here being that the hardware is identical. When using IE and Windows 8.1, I can view streaming ...
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0answers
403 views

My Laptop is running very slow when I installed ubuntu

I recently installed Ubuntu on my laptop, I have a pretty decent configuration that supports windows 8 very fluently but Ubuntu lags a lot while operating. This is my Laptop's configuration: ...
1
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0answers
96 views

Ubuntu 13.04 is operating too slow while plugged in for charging

Hardware: • 8GB RAM • 1TB hard disk • AMD A8 Quad Core processor My problem is: As soon as I plug in my computer for charging, my system performance gets extremely slow. Please help me out.
1
vote
0answers
226 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 ...
1
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0answers
2k views

GeForce 8600M GT: Nouveau performance better than proprietary driver?

After installing Ubuntu 12.10 on this computer, I installed NVIDIA's proprietary driver, since I might want to play a few games. I soon started having problems with video and audio. I'd be watching a ...
1
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0answers
240 views

Ubunut 12.10 64 bit using 100% CPU

Configuration Ubuntu 12.10(64 bit) i3 Processor Ruby 1.9.3 Java openjdk(6 or 7) Any ruby or java command using 100% CPU. It works perfectly fine with ubuntu 10 or 11 (32 bit).
1
vote
0answers
335 views

Fglrx 13.1 weird performance behaviour

Recently I installed Ubuntu 12.04.1 on my laptop with an ATI Radeon HD 5450. The open-source drivers perform well for the desktop environment, but not so with games. I just switched because I thought ...
1
vote
0answers
173 views

Handling a very large number of network interface aliases

I have what is probably a bit of an unusual problem. I'm developing a network stress testing tool for internal use, and one of the things I need is to simulate a lot of entities each with their own IP ...
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0answers
254 views

How do I speed up initial login?

The initial login on my Ubuntu 12.04 machine can take anywhere from 45 seconds to two minutes. If I log out, then log back in again, the login time takes between 4 and 7 seconds. How can I find out ...
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vote
0answers
447 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 ...
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0answers
77 views

How to determine what applications affect xorg/compiz load

Is there a way to tell which application causes huge cpu usage and huge load for xorg and compiz processes?
0
votes
0answers
18 views

Kernel Tuning Tools?

How to improve performance of a Kernel ? Are there any tuning tools to improve Kernel performance ? Thank you.
0
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0answers
43 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
27 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
13 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
55 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 ...