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
votes
2answers
1k views

Does Ubuntu run well on an USB HDD?

I have here a company notebook, and because the HDD is full encrypted, I cannot install an extra partition for another system that I would like to use in my free time. And I really need another ...
1
vote
0answers
22 views

Streaming video does not play smoothly. CPU struggling with simple tasks [duplicate]

Possible Duplicate: How do I fix Flash issues? I have a desktop made in 2004. It has a 3.0 GHz processor with 2 GB DDR2 533 Mhz dual channel and a Radeon 4670 PCI-E card w/ 1 GB DDR3 RAM. ...
1
vote
0answers
70 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?
1
vote
2answers
248 views

Ubuntu LTS performance is good but sometimes slow

Ubuntu Unity is fast in my computer running multiple windows etc., but after an update, Software Center suddenly shows and when a script stops running (usually when I'm on FB), it suddenly slows down ...
14
votes
3answers
12k views

Why most people recommend to reduce swappiness to 10-20?

I have seen in several site which recommend to reduce swappiness to 10-20 for better performance. http://community.linuxmint.com/tutorial/view/998 ...
1
vote
0answers
35 views

Ubuntu 11.10 Performance Problems [duplicate]

Possible Duplicate: How can I improve overall system performance? I have recently installed Ubuntu 11.10 in my hp pavilion t440m (this is a pc, not a laptop; with extra ram, now 1.5G) and I ...
2
votes
2answers
4k views

Ubuntu swappiness

I have a laptop with 4 GB RAM and i3 processor. It runs very fast when I use windows, but it keeps slowing down on my Ubuntu when I use it continuously. I noticed that 500mb+ swap is getting used even ...
1
vote
1answer
277 views

How can I get my system performance back again?

I have had this laptop for about 3 months running Ubuntu and it is now considerably slow performing every function than when I first installed Ubuntu 12.04. I have tried running a virus scanner. I ...
1
vote
0answers
21k views

Ubuntu 12.04 running slow: How to improve performance? [duplicate]

Possible Duplicate: How can I improve overall system performance? I used to work in a computer (Dell Inspiron) with 2GB RAM, 80GB dd and Intel Core Processor with Ubuntu 10 under Gnome, and ...
1
vote
1answer
304 views

Cuda driver, CPU/GPU performances issue [closed]

I implemented a RNS Montgomery exponentiation in CUDA and on CPU for comparison. Everything nice everything fine. It runs on just one SM. However, I am going to tell you some strange regression in ...
0
votes
3answers
683 views

building monolithic kernels will improve performace of the system ?

i am using ubuntu 12.04 . If I build monolithic kernels for device drivers i.e driver will have its own kernel as i understand , will it really improves system ...
1
vote
1answer
60 views

Can I get online support from Canonical for improving performance?

I am a real techno-tard. I need help optimizing my pc performance. Does Canonical offer any online support (such as online chat) to help people like me? I try to understand the posts but the language ...
2
votes
2answers
323 views

What packages/programs should I install to get better graphics and performance on gaming?

So, I want to install some packages/programs to get better graphics and performance while playing a game on Ubuntu 11.10. What packages/programs you guys recommend to me?
3
votes
2answers
4k views

What is process “/usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none”?

I am experiencing some serious performance issues with my Ubuntu 12.04 setup and thus looking for the culprit by running htop alongside my usual tasks. Aside from the usual suspects like chromium, ...
0
votes
2answers
3k views

My Ubuntu 12.04 LTS slowed down

My Ubuntu 12.04 LTS worked fine for few months after I installed it. But it has now slowed down considerably. For example: initially it took about only 2 or 3 seconds to load LebreOffice Writer, but ...
2
votes
2answers
223 views

Why is my system becoming gradually slower and how should I fix it?

I've noticed that the more time passes since I installed the system the more unresponsive it gets. Booting up takes for ever, login screen loads slow, logging in takes about 3-4 seconds, when first ...
2
votes
2answers
6k views

The performance governor for cpufreq doesn't seem to behave as advertised

The kernel in use: 3.2.0-23-generic on Ubuntu 12.04LTS For example, I issue the following command: sudo cpufreq-set -c 0 -g performance Then I go to /sys/devices/system/cpu/cpu0/cpufreq and type ...
2
votes
4answers
3k views

Poor performance when looking at Youtube videos

I am using Lenovo computer having the following configuration: 516 MB RAM and 3.06 GHz CPU When I installed 11.04, the system was getting very slow. From the Internet, I read an article that Lubuntu ...
1
vote
1answer
55 views

Ordinary use. Is GFX memory the culprit? Problems with 128 MB GFX memory

I have noticed when on my laptop using an external screen+laptop screen, the terminal gets corrupted and responds really slowly; several bug reports and questions here are having the same symptoms. ...
2
votes
2answers
658 views

Slow for no apparent reason [closed]

Ubuntu is becoming slow for no apparent reason. I'd like some help with analysing and fixing this issue. Usually when a system slows down, that's because the software is using too much system ...
0
votes
2answers
435 views

Ubuntu 12.04 flush-encryptfs resource hog

I've been using Ubuntu 11.10 for a while, but recently upgraded to a fresh install of 12.04 LTS. I am noticing a program called flush-encryptfs- using a significant portion (30 to 80%) cpu resources. ...
0
votes
1answer
184 views

How to set power setting to performance?

In Ubuntu 12.04 how do I set up the power settings to obtain maximum performance (opposed to max battery life)?
0
votes
0answers
1k views

How is the performance of an encrypted Home directory compared to a non-encrypted one? [duplicate]

Possible Duplicate: Performance Overhead of Encrypted /home When you install Linux Mint, it asks you if you would like to encrypt you home directory (I think that's what it asks, its been a ...
2
votes
1answer
704 views

Ubuntu 12.04 - e1000e slow performance

I'm running Ubuntu 12.04 on a Thinkpad W510. lspci reports this ethernet controller 00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06) By default the ...
8
votes
3answers
15k views

Why does kworker cpu usage get so high?

I recently installed Ubuntu 12.04 on my Samsung laptop alongside Windows 7. Whenever I use Ubuntu (even when its idle) kworker uses almost 90% of one of 8-cores. Even though it doesn't really affect ...
1
vote
1answer
2k views

Best Ubuntu version for Virtualbox host

What is the best version to use as a Virtualbox host OS? Is it 12.04, or 9.04? I get the notion that an older system runs faster. Is this true? I especially have to consider the amount of RAM ...
0
votes
2answers
216 views

Will ubuntu 12.04 LTS run faster when installed individually instead of in the windows folder? [duplicate]

Possible Duplicate: What performance differences are there when installing with Wubi? I have lots of freezes and stuff... So I was wondering if I installed Ubuntu individually instead of ...
0
votes
1answer
1k views

How to compare performance between desktop graphics card and laptop graphics card? [closed]

For example, I know GT640 is better than GT640M. 1.Is GT630 better then GT640M? 2.Is GT620 better then GT640M? 3.Is GT610 better then GT640M? How to check for their performance if I don't have any ...
2
votes
3answers
569 views

How to speed up installation?

I have an Acer 4736z with 2gb Ram and ubuntu 12.04 is running too slow for my standards. I would like to know if I am running useless processes that I am not aware of and remove packages I will never ...
11
votes
8answers
16k views

Is Xubuntu really faster than Ubuntu?

I installed xubuntu desktop on top of ubuntu 12.04. The usage of RAM and CPU is in general lower than in ubuntu. But when it comes to some serious computations I did not see much of a difference ...
0
votes
1answer
816 views

Apache tomcat 7.0.29 performs very slow on Ubuntu server 12.04 [closed]

We have 16 GB of RAM and trying to access our applications hosted through the server with Apache tomcat 7.0.29 in Ubuntu server 12.04 (GUI). All our applications are running very very slow... Please ...
2
votes
2answers
5k views

Gnome shell slow on a fast computer

The computer is an EliteBook 8540w: ATI FirePro 5800 (using proprietary drivers) i7 720qm 8Gb RAM OCZ Agility III SSD Ubuntu is freshly installed (a week ago). I have set swapiness to 10. When I'm ...
0
votes
0answers
135 views

Constant crashes and freezes after upgrade to 12.04 [duplicate]

Possible Duplicate: What should I do when Ubuntu freezes? After a fresh install of 12.04 as an upgrade from 10.04 my computer keeps freezing. I have a 2.4GHz Intel quad core processor, 4GB ...
1
vote
2answers
311 views

Monitor disk activity on a per file basis

I am trying to find a program that actively monitors how much data is read and written per second to open files and then sorts files with the highest usage at the top. This would be similar to iotop ...
8
votes
4answers
7k views

high performance with xen, vmware or virtualbox

I was wondering which is the best method to go about if I want to play win based games. I do not want to go with the dual boot method as this will cost me time to restart, login and run a os to do my ...
0
votes
1answer
173 views

Responding very slow while loading icons

I have just installed Xubuntu 12.04 x32 from a USB on to my hard drive. It installed fine, however now when I boot up and log in to my user, it seems to be rather slow -- notifications at the top ...
2
votes
0answers
37 views

Question regarding power outages affect on ubuntu [duplicate]

Possible Duplicate: How resilient is Ubuntu to repeated “power-off” shutdowns? Due to some reasons, sudden power outages are common at my place so my current operating system ...
2
votes
1answer
2k views

Is there a way to disable Intel SpeedStep on an Ubuntu Server using a command line application?

We cannot disable it using the BIOS, because Turbo gets turned off as well as a side effect (what a crappy BIOS!). I am looking for a simple command line tool for Ubuntu 12.04 LTS Server that can do ...
0
votes
2answers
1k views

Swappiness setting ignored in systcl.conf

My Ubuntu 12.04 x64 on Dell XPS 15 with 8GB of RAM has been really sluggish. After some searching I came across post about swappiness. I noticed that swappiness on my system was reported as 0 which ...
0
votes
1answer
662 views

Reinstall Ubuntu wit UEFI for better performance?

I am thinking about reinstalling Ubuntu 12.04 on a freshly formatted disk with BIOS changed to UEFI on my Asus laptop. I hope, it can boost my bootup performance, but am not sure whether it is worth ...
1
vote
1answer
125 views

Why my computer fails when converting many images in Imagemagick with one command?

After updating to Precise had a few times the following mishap: when I try to convert to pdf many (100, 200) jpegs or pngs, my system gets completely stuck and need hard reboot. Or, more fortunately, ...
0
votes
1answer
175 views

12.04 Running slow when downloading files

I've been using Ubuntu for a while now, and just upgraded to the latest version about a couple months ago. I've noticed, then and now, that 12.04 seems to run much slower on my computer and ...
0
votes
0answers
231 views

Really slow copy speed [duplicate]

Possible Duplicate: Copying to/from NTFS partitions very slow Does writing data from ext4 to NTFS partition take a lot of time?? I get speeds upto only 70kB/s (copy). ext4 - ext4 is pretty ...
2
votes
1answer
159 views

Do I need to update my GPU drivers?

I have the following system running Ubuntu 12.04 with Wine 5.8: AMD Phenom I x4 2.8 Ghz XFX GTs 250 1GB 3GB DDR 2 Ram I have tried the 2 drivers in the additional drivers program and both have the ...
1
vote
1answer
2k views

How to get isolcpus kernel parameter working with Precise 12.04 amd64?

I've been testing this stuff trying to reserve some CPUs in a host with two Intel E5645 but I can't get it working for some reason. Steps I followed: Edit /etc/default/grub and added isolcpus=0,1 to ...
2
votes
2answers
640 views

I am experiencing slow performance on my system. How do I diagnose and fix it?

I am using ubuntu 12.04 in my laptop. This is my first experience in ubuntu. I just installed Ubuntu yesterday. I have dual OS in my laptop. The other OS is Windows 7. Comparing Windows 7 ubuntu ...
3
votes
2answers
2k views

Ubuntu SSD performance issue

I have installed Ubuntu 12.04 on a 55GB Adata S599 SSD. I have a Asus M4N68T motherboard that does not support AHCI. Bootup takes a lot longer than expected and working in the system is not even close ...
15
votes
3answers
23k views

Gaming performance difference between Windows and Ubuntu

What are the pros/cons switching from Windows 7/8 to Ubuntu? I mainly develop software and play games. I obviously don't play games on my laptop that's why I give Ubuntu a try. But the whole OS ...
1
vote
0answers
222 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 ...
0
votes
1answer
89 views

Are there any automated functionality tests for an Ubuntu installation?

I have installed Ubuntu on my MIPS architecture machine (it is not an x86). I want to test if the applications are working well. I want to use automation test methods to do it, but how can I ...