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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12
votes
4answers
2k views

Ubuntu on low performance laptop [duplicate]

My sister has always wanted a macbook, but I recently convinced her that Ubuntu is a great OS with much more similarity to Mac OS than Windows. She said I can install Ubuntu on her laptop but it is ...
1
vote
0answers
2k 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 ...
3
votes
2answers
342 views

Constant HIGH CPU Usage - even after reboot with no applications

Here is a PROBLEM, a lists of my ATTEMPTS to solve it, and a PLEA for help: [As indicated, I have read all similar 'answered' questions, and have not found an answer that works for me.] ...
0
votes
1answer
394 views

Ubuntu dead slow after last update

It's been a few days now. Everything is SLOW as hell. Going from a desktop to the next is slow. Unlocking my workstation kind of fades out the lock screen and fades in the desktop. The animation takes ...
1
vote
1answer
196 views

Curious about UnixBench results, is my HD configured properly?

I downloaded UnixBench 5.1.3 and ran it on both my old Dell 4600 and my newer Gateway SX2800. With a 2.4Ghz P4 the Dell gets clobbered on cpu tests by the Gateway with quad core Q8200 at 2.3GHz. The ...
0
votes
1answer
34 views

Testing multiple desktops simultaniously

Our college is installing new ubuntu installed systems for our lab.They want to test the performance of the systems.I googled some benchmarking tools but we have 250 systems to test,is there a easy ...
4
votes
2answers
666 views

Will performance be worse if I encrypt the entire Hard Drive / SDD?

If I use whole disk encryption, will I notice a drop in performance? And what about for a SSD? And I see that there is a option in my bios that enables Intel AES-NI does this have any effect on my ...
2
votes
1answer
50 views

When should a fresh install should be made [closed]

On my desktop at home, a 2008 Vaio w/4GB RAM and dual core processor running 12.04 LTS, I've been experiencing of late a perceived performance degradation. It's most apparent at startup but it's also ...
0
votes
1answer
122 views

responsiveness drops drastically when RAM get's full after upgrading from 13.04

Since I've upgraded from ubuntu 13.04 to 14.04 (and before 13.10) my system get's to it's knees when the memory get's full and has to start swaping.. Of course I know that a performance penalty ...
0
votes
1answer
143 views

Why is radeontop showing 0,00% in all fields?

I'm trying to get realtime statistics about my graphics card utilization, and the program radeontop is supposed to enable that. However, as you can see in the screenshot below, it reports all the ...
2
votes
0answers
787 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: $ ...
3
votes
3answers
3k 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
1k 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
5k 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
185 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 ...
1
vote
1answer
2k 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
125 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 ...
9
votes
1answer
9k 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
2k 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
282 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
81 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
2answers
382 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 ...
2
votes
1answer
2k 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
1answer
109 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?
2
votes
0answers
209 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
360 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
56 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
81 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
1k 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 ...
1
vote
1answer
1k 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 ...
6
votes
2answers
798 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 ...
3
votes
1answer
4k 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
110 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
3answers
166 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
1answer
87 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 ...
3
votes
1answer
22k 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
166 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
68 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
619 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
102 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
130 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
2answers
2k 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
293 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 ...
12
votes
5answers
1k 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
207 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
159 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
560 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 ...
5
votes
3answers
8k 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 ...
1
vote
0answers
96 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 ...