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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-1
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2answers
22 views

Ubuntu 14.04 runs slow on AMD A4 - 4Gb Ram

Recently I bought laptop of ASUS with configuration AMD Quad Core A4 - 5000 1.5Ghz Memory 4Gb HDD 500Gb Even after installing LUbuntu, I didn't see much increase in speed. Currently installed ...
0
votes
0answers
8 views

Matlab 2014a interface started lagging on Ubuntu 14.04

My Matlab 2014a interface really started lagging recently, after months of smooth and fast performance, on Ubuntu 14.04. Both the main Matlab window and the code editor window has a persistent ...
1
vote
3answers
2k views

Firefox use lot of cpu

I have a notebook nb510 Toshiba with Ubuntu 12.04 and firefox 22.0 with extensions like addock-plus, x-notifier, download helper, xmarks. Sometimes it's take more cpu than 100% This information of ...
2
votes
2answers
106 views

How I can disable CPU frequency scaling and set the system to performance?

My processor is running at 40% of its maximum speed, I want it to use 100% of the speed, all the time. I searched on Google but the tutorials are very old and they all differ. So, how can I ...
0
votes
5answers
12k views

Why is Ubuntu slower than Windows Xp? [duplicate]

Possible Duplicate: How can I improve overall system performance? My system config is-chipset - Intel Brookdale-G i845GEVmotherboard - 01/25/2005-i845G-W627-6A69VM4YC-00video adapter - ...
0
votes
1answer
134 views

lm-sensors ubuntu 14.04 core voltages

I am trying to measure the core voltages of my cpu. I installed the lm-sensors, I ran the sensors-detect and I reply YES to all of the question. At the end of the sensors-detect I get: To load ...
-1
votes
0answers
12 views

IRQ Balancing-RSS-Flow affinity

I am playing with a multi-core system, in which i would like to get maximum ip packet forwarding performance.I am getting 1.2Mpps with Ubuntu 14.04, with new ixgbe driver. But when i am allocating ...
2
votes
2answers
38 views

Find files that are heavily used in the system

atopsar -d 30 - shows that one of hard drive (sda) in the system is heavily used. Is there a way to know which files are heavily used on HDD?
0
votes
1answer
28 views

SSD performance testing

I'm testing the performances of my new SSD card, and it seems I'm stuck with sata2 speed even if my controller is sata3. Here is the command I'm using. dd if=tempfile of=/dev/null bs=1M count=1024 ...
0
votes
0answers
17 views

Very poor performance after regular updates

Recently my install of 13.10 decided to go all wonky on me. It did some kind of system update and then I got that lovely black screen after on boot. After many efforts to fix it I did a dirty upgrade ...
1
vote
0answers
49 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 ...
0
votes
1answer
37 views

Is my netbook powerful enough to run Ubuntu 14.04? [duplicate]

Mods: this question is not a duplicate of others. While related in subject, this question is not a general specifications request, nor is it concerned with building kernels and whatnot. This question ...
1
vote
2answers
3k views

Unity environment way too slow in Ubuntu 13.10

Unity and its apps open too slowly whenever I open one. It takes a while for them to appear completely. Everything works properly when the window is already open. The biggest problem is with the dash: ...
0
votes
2answers
117 views

SSD is more sluggish in Unity than my HDD on 14.04

I've been running Ubuntu 14.04 on my old Dell 6400 laptop with 2Gb RAM (max) with a small 60Gb HDD and Unity performance has been fine. Last night I dropped in a 128Gb Adata SP600 SSD and installed ...
-1
votes
1answer
58 views

Ubuntu 14.04 videos and games running slow

I have little problem with Ubuntu here. I was running Windows 8 and then i decide to make dual boot with ubuntu 14.04 (whitch is great system!) but when i boot to Ubuntu i have problems with system ...
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 ...
0
votes
0answers
3 views

How can I log pre-process resource usage?

I am encountering a reproducible system slowdown when I perform a given action on the desktop. I have observed some odd behaviour running top and iotop in separate TTYs. How can I log resource usage ...
0
votes
1answer
36 views

gnome-session-flashback desktop — is just booting into gnome enough or do I need to uninstall unity?

I am currently running Ubuntu 12.04. If I want to run Ubuntu with a less performance-sucking GUI than Unity, is it enough for me to install gnome-session-flashback desktop and set the system to boot ...
0
votes
0answers
16 views

Difference between System monitor and free -h

I have a Lenovo T430 laptop with 3.7GB of RAM. Since I started using this machine I observe the following strange behavior. If I do a lot of things, say have rails server running, a few nodejs ...
0
votes
2answers
33 views

How to clean up/clean out /dev/sda7 when permission is denied?

d@d-Satellite-C655:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda7 38G 36G 278M 100% / none 4.0K 0 4.0K 0% /sys/fs/cgroup udev 931M ...
0
votes
2answers
1k views

Why Windows 8 is a lot faster than Ubuntu 13.10 on the same laptop? [closed]

I am not a Windows fan. I don't like Windows. But, for my curiosity, I temporally installed Windows 8 on my machine (a Samsung NP300, Intel Core i3, 4GB Memory). I observed that it's a lot faster ...
1
vote
2answers
132 views

How do Ubuntu flavors compare regarding resource consumption and performance?

Minimum requirements statistics do not provide enough accurate info to new and prospective users trying to determine a suitable flavor for their machine. People need to know if an OS will run smoothly ...
0
votes
1answer
164 views

Ubuntu is 13.04 slower than 12

I've been using Ubuntu for quite a while now, mostly 12. I recently updated to Ubuntu 13.04 and the most noticeable change is that it's overall slower than 12. In particular, moving windows on the ...
7
votes
3answers
25k views

Is there a benchmark tools for Ubuntu?

Is there a benchmarker (a tool to measure computer performance) for Ubuntu (like SuperPI, 3DMark, or PCMark)?
2
votes
2answers
322 views

Can I enhance the performance of ubuntu using a sd card by in anyways?

I'm just curious if it is possible do it. I have a spare 4gb sd card.
0
votes
0answers
34 views

Can't install Ubuntu 12.04 32bits on a modern PC - So slow!

I'm working on a project that only works on Ubuntu 12.04 32 bits. I've been given a modern computer to work with but the installation of Ubuntu is driving me nuts. The machine specs are: MoBo: ...
0
votes
2answers
47 views

Low desktop performance with netbook

After installing latest ubuntu on my netbook (ASUS 1225c) I experienced major drop in responsiveness and frames per second on desktop. It seems that there is something wrong with video drivers. The ...
-1
votes
2answers
66 views

Disable unnecessary startup services and applications

What is the best practices to disable unnecessary startup services and applications? This post is very useful when i came to decide what to disable Which startup applications can I safely disable? , ...
1
vote
3answers
3k views

Bad 3d performance of intel ironlake

I'm using ubuntu 13.04 and got VERY bad 3d performance with intel ironlake comparing with a windows installation. Is there any way I can improve this? I already tried various paramaters of the i915 ...
0
votes
1answer
25 views

Xubuntu laggy/slow in brand new MBP host

I am using Xubuntu as a VM in both a Windows/PC host and recently a OS/X Mac host. The latter is laggy, especially when I use two monitors. It's weird cause the Windows machine is less capable (less ...
0
votes
1answer
51 views

I only have 1GB of ram, what can I do to improve the performance on my 32-bit 14.04 system? [duplicate]

I'm running a fresh install of Ubuntu on an old iMac. It was going painfully slow on OSX so I wiped that and installed Ubuntu overtop of it hoping it would speed things up a bit. I'm not going to be ...
0
votes
0answers
34 views

LibreOffice (Calc) consumes all of the available RAM memory

I am having problems with LibreOffice's memory consumption. It didn't change much since 12.04 - I have tested it in Ubuntu 12.04, 13.04, 13.10 and 14.04 and didn't notice any significant differences. ...
3
votes
2answers
4k views

How to set cpufreq governor to performance?

I am on Ubuntu 13.04 64-bit. I have heard that setting the cpufreq governor to performance will, well, increase performance. Unfortunately, I am a bit of a newbie at this sort of thing, and I am not ...
22
votes
5answers
16k 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 ...
0
votes
1answer
292 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
19 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 ...
2
votes
1answer
1k views

very high IOWait + extremely slow hdparm -tT

I have been running 12.04 on my Fujitsu Siemens Lifebook E751 for almost a year without any problems, and then several days ago I noticed a very high CPU IOwait that makes the system poorly responsive ...
14
votes
10answers
5k views

Long wait time on login

When I log in on my server I get this: No mail. Last login: Fri Nov 5 14:22:45 2010... then I must wait for 5 sec and then is ready... wolfy@ubuntu-server:~$ Is this wait time normal or should ...
1
vote
1answer
128 views

Getting URL of YouTube video with `youtube-dl` is slow, without downloading video

I want to get the URL using youtube-dl, and the "simulate" option -g that does not download the video. So I gave the following command: youtube-dl -g https://www.youtube.com/watch?v=k4JGSAmu4lg ...
0
votes
0answers
221 views

Radeon R7 M260 & Proprietary Drivers: Bad Performance

I recently bought a Dell Inspiron 5547 laptop and installed Ubuntu 14.04 on it. Almost everything worked great out of the box. This laptop comes with two graphic cards, an Intel HD Graphics 4400 and ...
0
votes
0answers
97 views

IPSec Offload support in 82576GB controller for Linux

Due to migration of servers to cloud computing, we bought several NICs that support mechanisms like SRIOV and VMDQ. Furthermore, as security risk was also a concern and we did not want to create more ...
1
vote
0answers
51 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 ...
0
votes
2answers
350 views

high CPU usage on Ubuntu 12.04

I just installed Ubuntu 12.04 on my Asus k53s notebook. Processor is Intel® Core™ i5-2410M CPU @ 2.30GHz × 4 5.7 GiB RAM. The CPU usage gets very high after a while, specially when using internet. ...
1
vote
1answer
42 views

New 14.04 Install on Workstation - Suggish Performance

Machine Details Dell Precision M4800 Laptop Intel i7-4900MQ Nvidia Quadro K2100 16GB Memory 240GB SSD Hi, I was running Windows 8 for a while but finally decided to make the switch to Ubuntu. I ...
1
vote
0answers
113 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 ...
1
vote
2answers
51 views

Ubuntu touch threads priority; Will Touch be as laggy as Android, or smooth like IOS?

Are there separate User Interface and Rendering Threads in Ubuntu Touch? In other words, will Ubuntu Touch be laggy like android or smooth like ios?
15
votes
3answers
12k views

How can I measure the execution time of a terminal process?

I'm trying to measure the execution time of a process that I call via the command line (i.e., I want to find out how long it takes to for the process to finish). Is there any command that I can add to ...
110
votes
13answers
75k views

How do I optimize the OS for SSDs?

What steps should be taken before/during/after installation of Ubuntu on a Solid State Drive to optimize performance and ensure maximum durability of the drive?
0
votes
0answers
64 views

Ubuntu 14.04 Not recognizing GPU, EXTREMELY slow performance

I recently installed Ubuntu 14,04 on my Compaq Presario CQ62 laptop. Specs: 4GB 1600 MhZ DDR3 RAM Ati Mobility Radeon HD 4250 GPU AMD V120 CPU, 1 Core, 2200 MhZ I have installed Ubuntu using the ...
1
vote
1answer
97 views

Ubuntu 14.04 on Toshiba suddenly super slow

I have a Toshiba Satellite C55 with Ubuntu 14.04 with a 320GD HDD and 6GB RAM. It dual boots with Windows 8 (which I never log into). I usually completely shut-down the laptop only every 2 days. ...