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
3answers
1k views

Why does my system use so much cache?

Previously, on my desktop computer running Ubuntu 14.04, I had 4GB RAM, which I thought should be plenty. However, after being on for a while, my computer would seem to get slow. I have a system ...
3
votes
2answers
431 views

ls on home directory very slow

A while ago, I accidentally created hundreds of thousands of files in my home directory which I subsequently deleted. Since then however, running ls in my home directory has been extremely slow ...
11
votes
2answers
4k views

Does Ubuntu Touch consume less power than Android? [closed]

One of the problems of new OSs is power consumption. That is because power and performance requires a lot of tweaks and experience with the kernel, drivers and OS code-base on one hand, and a lot of ...
0
votes
1answer
100 views

Ubuntu Server performance boost

Is there any way to boost an Ubuntu Server's performance? I feel it a bit laggy when hosting a game server on it, unlike other servers. Do you think installing a desktop environment will decrease the ...
0
votes
0answers
117 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
854 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
1answer
641 views

What broke Firefox? After upgrade to 14.04 Firefox plugin-container eats 179% CPU

After my recent upgrade from 13.10 to 14.04 Firefox plugin-container eats 179% CPU, even after disabling all plugins and restarting the browser. Before the upgrade I did not have this problem, though ...
1
vote
0answers
76 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 ...
0
votes
0answers
327 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 ...
4
votes
1answer
3k views

zram vs zswap vs zcache Ultimate guide: when to use which one

What the hell are they? how are they different (I've written my understanding in an answer below) In the Zswap system, when a page is evicted from the zswap to the actual swap is it stored in a ...
0
votes
2answers
1k views

Improve Ubuntu 14.04 LTS video performance

System info: $ lspci 01:00.0 VGA compatible controller: NVIDIA Corporation NV44 [GeForce 6500] (rev a1) $ free -m total used free shared buffers cached Mem: ...
1
vote
0answers
184 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 ...
1
vote
0answers
50 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 ...
0
votes
0answers
128 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
2answers
212 views

Slow performance while opening applications [closed]

I moved from Win 8.1 64bit to Ubuntu 14.04 64 bit with a fresh install from DVD. Everything is moving slow with performance. Graphics is fair, but when I say performance I mean, an average to open any ...
1
vote
1answer
534 views

Gradle compiling slows down my computer

The responsiveness is really bad on a newly installed Ubuntu 14.04 LTS. Here's the specs of my laptop: Quadcore Intel i7-4600U CPU @ 2.10GHz 12GB Ram 1TB Samsung EVO SSD And when gradle is ...
0
votes
0answers
72 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 ...
1
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. ...
0
votes
1answer
76 views

can i install Ubuntu14.04 in my ideapad? [duplicate]

i'm using ubuntu 12.04 64 bit version in my Lenovo S100 ideapad. my ideapad is having 2GB RAM and Atom processor.Is there any performance and speed problems will occur if i change my OS to 14.04?
0
votes
0answers
468 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 ...
1
vote
0answers
181 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 ...
1
vote
3answers
202 views

Ubuntu Frozen every time when Memory usage over 80%

Ubuntu Frozen every time when Memory usage over 80%, It seems that the system hangs due to a load of disk IO - the screen is frozen and the only thing I can see is the indicator LED of disk keeping ...
0
votes
1answer
37 views

How does mounting (or unmounting) a partition affect the performance of the system?

Just curious to know: how does mounting (or unmounting) a partition affect the performance of the system? I have a fairly large partition where have stored backups, software and old files that I ...
-1
votes
1answer
68 views

Does Ubuntu 14.04 LTS work with only 736MB of RAM? [duplicate]

I want to install it on my old desktop PC. here is it's specs: CPU: Intel Pentium 4@2.4GHz RAM: 736 MB VRAM: 256MB HDD: 120GB I can install the following OSes on it: Windows Vista Home Basic ...
5
votes
1answer
780 views

Whole system freezes, even TTY does not work [closed]

I upgraded from 13.10 to 14.04 and now after a while the complete OS freezes. I can't even go into TTY1 - TTY6. I have to use REISUB to restart my machine. Most of the time, it freezes when I use ...
0
votes
0answers
56 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 ...
1
vote
1answer
351 views

Virtual machine running painfully slow

I am running Ubuntu 14.04, and I've installed windows 8 on virtualbox. The problem is that it is too slow - even minimizing a windows takes 2-3 seconds. The reason I think this is a problem is ...
3
votes
2answers
205 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 ...
0
votes
0answers
308 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 ...
3
votes
1answer
3k views

Ubuntu 14.04 just update and very slow

So I just updated from Ubuntu 13.10 to 14.04, and I noticed that my system (specifically animations and videos) are very slow. I disabled the animations, which helped. But its still working very slow, ...
2
votes
1answer
64 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 ...
0
votes
2answers
158 views

ubuntu 13.10 performance for 1 GB machine

I installed Ubuntu 13.10 to my desktop which has 1 GB main memory and AMD 64 bits CPU. It happens that the system freeze, applications not response sometimes and crashes a few times. I just learn ...
0
votes
0answers
28 views

Possible Memory Leak on Ubuntu 10.04 LTS [duplicate]

I am having an memory issue with one of my Ubuntu servers which is running as a VM through VMware ESXi. The servers primary function is an email server, running Sendmail and Dovecot, with Squirrelmail ...
0
votes
1answer
67 views

Ubuntu 12.04 LTS Runs Slow

I am new ubuntu user. I am using ubuntu for web development. For that i have installed XAMPP for Linux,Ubuntu and Chromium Browser. But i dont know why it is too much slow. Help is needed. Thank ...
0
votes
0answers
78 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 ...
3
votes
1answer
20k views

Ubuntu 14.04 is too slow [closed]

After a successful fresh install of Ubuntu 14.04 (from USB flash drive) everything is much slower than in previous versions of Ubuntu on the same computer. It takes a few seconds to open a window or ...
2
votes
0answers
138 views

full disc encryption with SSD

I'm about to reinstall Ubuntu onto my laptop. If I use full encryption, which I desire, how will this impact performance of the SSD and FSTRIM? Will I still be able to use it or will it be ...
0
votes
2answers
67 views

Browsing is painfully slow

Either it's Firefox or Chromium - browsing is painfully slow for some reason. It just takes lots of time to do anything: open a tab, load a website, etc. My internet is really fast and other programs ...
13
votes
0answers
2k views

Is Wine what I think it is? [duplicate]

My first impression is that Wine is a simulated Windows environment which uses free (and presumably open source) libraries as an alternative to Microsoft's proprietary libraries. Those libraries ...
1
vote
1answer
378 views

Ubuntu 12.04 suddenly very slow

For some reason, my Ubuntu 12.04 recently became very slow. My specifications: HP laptop, core 2 duo T6600, 2.20 Ghz x2 Ati radeon 2 GB RAM Symptoms in Unity 3d: Dash takes endless to open ...
0
votes
3answers
80 views

Speed Up Ubuntu 13.10

Since i m new one to ubuntu. When using windows 8 OS, there are lot of ways to speed up the system performance. That is why i want to know what are the possible ways for best performance of system. I ...
0
votes
1answer
117 views

Ubuntu 12.04 runs too slow

I am a new Ubuntu user. I have installed Ubuntu 12.04 on my PC. My PC has been running much too slowly for the last two days. I tried to find a solution, but I am unable to find it. I tried Unity 2D, ...
2
votes
1answer
798 views

Lubuntu: laptop abnormally slow

My laptop is pretty new (less than a year) and has decent specs, but since 1/2 months it gets really slow even if I do things I could easily do before (development + browsing). This makes it ...
1
vote
1answer
219 views

System performance is extremely laggy when copying and extracting files

After a clean install of Ubuntu Gnome 13.10 (64-bit) and the according Gnome 3 (stable) PPA my system (Samsung 900X3C) is extremely laggy, when files are copied to the external hard-drive (HDD) or ...
2
votes
0answers
323 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 ...
0
votes
1answer
142 views

Does running Office 2010 through Wine add a significant performance overhead?

Say you have have a computer with a data sheet similar to this CPU: 1.1 GHz Dual-core Intel Celeron Processor 847 RAM: 2GB HDD: 320GB (5400 rpm) According to the minimum requirements in Windows ...
2
votes
2answers
152 views

Ubuntu Studio for Ubuntu SDK

I have one of the strange question in my mind. I saw Ubuntu studio is good for multimedia related thing. I was wondering this thing for past few days. Is it possible to Install Ubuntu SDK in Ubuntu ...
0
votes
1answer
339 views

Acer Aspire One 725

I recently got an Acer Aspire One 725 and I want to install Ubuntu on it. I tried Ubuntu 13.10 32-bit and 64-bit, but I got a lot of errors, and it is running a little slowly. Has anyone tried to ...
4
votes
2answers
3k views

GUI Performance Monitor Tool

I need to monitor the performance of an Ubuntu 12.04 machine. I am looking for a tool similar to PerfMon on Windows. I need something more interactive that using top from a terminal ; I am looking ...
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!