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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0answers
52 views

Why is rvalue write in shared memory array serialised? [closed]

I'm using CUDA 4.0 on a GPU with computing capability 2.1. One of my device functions is the following: device void test(int n, int* itemp) // itemp is shared memory pointer { const int tid = ...
3
votes
1answer
2k views

How to speedup Ubuntu when user home directory on NIS/NFS?

I discovered that Ubuntu 11.04 is kinda slow when you have your home directory on NFS, even when NIS itself doesn't have any performence issues. Still it seems that many applications including ...
2
votes
1answer
838 views

Why does Ubuntu/Linux's UI performance seem to be so much slower than Windows? [closed]

I'm a long time Linux advocate and user (since around '98). I rarely boot up Windows, but when I do, it's secretly frustrating to me how fast things seem to be. For example, when you type in Ubuntu ...
2
votes
1answer
183 views

System Slow After Uprading Ubuntu

i have an ubuntu network machine which has release of 10.04.1 LTS Lucid. on this system i have apache, postgresql and django. for some app. development i have to install php and php-curl... due to ...
1
vote
2answers
697 views

NTFS access very slow , perhaps a hang

I installed Ubuntu 11.10 about a month ago. Very nice. I dual boot it with Windows and have run it on VirtualBox. I hope to transition from Windows to Linux this year. I have many files in various ...
15
votes
2answers
6k views

How to diagnose Ubuntu CPU spikes / IO wait?

I'm using Ubuntu and every couple minutes it goes unresponsive for a half second to a full second, which isn't normally a problem but makes trying to code extremely frustrating when your trying to hit ...
2
votes
4answers
4k views

How well does Intel 3000 HD work?

Right now i have notebook with Nvidia 8400M GS (I know, it's not good card) and it's impossible to work normally when i'll plugin external monitor (1920x1080). Windows 7 can deal with it without ...
1
vote
4answers
10k views

Make ubuntu gnome faster by reducing graphics quality

I'm running Ubuntu 11.10 on VirtualBox and performance is really bad. It takes seconds to respond to a click. Is it possible to reduce the graphics rendering quality or other unnecessary things, to ...
2
votes
1answer
522 views

How can I pre-cache image thumbnails? [duplicate]

I have several frequently-updated folders that contain thousands of high resolution JPGs. The first time I browse into any of them, it takes a long time for Nautilus to generate all the thumbnails. ...
2
votes
1answer
2k views

How do I prevent Ubuntu gradually slowing down to a stop?

I really do not know what is causing the problem of my desktop environment (D.E.) gradually slowing down. It seems to happen in Gnome 3.2, LXDE, XFCE, and KDE. I am running Ubuntu 11.10 and this ...
4
votes
1answer
6k views

Good way to run Java and Eclipse from a ramdisk

It is often suggested to me that to improve the performance of the Eclipse development environment, that I should move the Java JDK/JVM (and possibly Eclipse) to a Ramdisk. I know that the Ubuntu has ...
2
votes
1answer
3k views

How to troubleshoot a slow wireless connection (step by step)?

I am looking for a standard approach to troubleshooting slow wireless connections, regardless of what card or wireless router you have. Pings to the gw in a simple network less than 10 ft away should ...
2
votes
1answer
841 views

ATI Radeon 5800 series dual monitor unity not 3D accelerated

When I had a single monitor setup, without Xinerama, with my current setup of Ubuntu 11.10, ATI 5800 series card, Unity showed transparencies, shadows, etc. (although graphics was reported as ...
2
votes
2answers
5k views

How do I measure performance of a virtual server?

I've got a VPS running Ubuntu. Being a virtual server, I understand that it shares resources with unknown number of other servers, and I'm noticing that it's considerably slower than my desktop ...
9
votes
2answers
11k views

Slow USB 3.0 speeds

Long time forum forager, first time poster. I bought a Toshiba 500 GB usb 3.0 hard drive last week and instantly ran home to see how fast I could push it. On my desktop (that I built) I was able to ...
0
votes
1answer
352 views

Freshly installed system boots slow - unable to understand kernel messages [closed]

When my Ubuntu 10.04 PC stopped booting from one day to the next, I assumed that it is a boot loader problem. I managed to boot from a 11.10 live cd and installed a fresh 11.10 next to the old ...
1
vote
2answers
2k views

Java GUI extremely slow

I'm writing a Java app and the GUI is extremely slow on my Ubuntu 11.10 64bit setup. It takes a few seconds to respond to some action. It runs flawlessly on both Max OS X and Windows 7, it actually ...
3
votes
3answers
1k views

Unity or Unity2D, which will be fastest on a high spec computer?

I have a decent laptop. i7 quad 2.8, 8gb ram, and Nvidia nvs3100m. I wonder which of unity 3d and 2d that would be fastest on my system. Sure its hard to tell. And the question I'm seeking answer ...
3
votes
1answer
393 views

Slow flash on certain web pages

When trying to use www.songsterr.com for listening guitar tablatures i get a few second lag between diplay and audio. Also, while playing on chesscube.com, moving the pieces is quite horrible because ...
4
votes
2answers
8k views

How to reduce TCP latency for gaming?

I use Ubuntu for gaming. In competitive gaming every millisecond matters. I know that many people who use Windows use something called Leatrix Latency Fix which is basically a script that modify ...
4
votes
1answer
177 views

What processes should be ioniced for a responsive desktop?

My goal is to intelligently and permanently ionice the processes on my desktop for responsiveness under heavy disk and network load. By permanently, I mean that any changes made to the system will ...
0
votes
1answer
830 views

Ubuntu 11.10 x64 and AMD Processor slow performance

I'm having a problem with the last distributive of Ubuntu. The problem is that with an Intel DualCore E7500, 4GB of RAM DDR3-1600 and x32 bits type of OS with PAE enabled, I have not met performance ...
0
votes
1answer
95 views

Which directories at / is it safeish to move to a slower (but much larger) secondary drive?

I took the path less traveled and installed Ubuntu on my CR-48. Mostly this is a completely standard install, minus it using ChromeOS's kernel (for drivers) but the main drawback is the 8GB SSD-- it ...
7
votes
2answers
1k views

Is my boot process normal? It takes 50 seconds boot

Here's my boot.log resume: libgcrypt version: 1.5.0 fsck from util-linux 2.19.1 fsck from util-linux 2.19.1 fsck from util-linux 2.19.1 /dev/sda5: clean, 668102/3276800 files, 4449436/13107200 blocks ...
7
votes
4answers
7k views

How does ecryptfs impact harddisk performance?

I have my home directy encrypted with ecryptfs. Does ecryptfs lead to fragmentation? I have the feeling that reading files, displaying folders and login became continuously slower and slower ...
8
votes
4answers
7k views

Does compiling a linux kernel make the OS faster?

Does compiling a downloaded linux kernel (e.g 3.2) make the OS (e.g ubuntu) faster on that specific machine?
3
votes
1answer
209 views

Is there any difference in using switch user and login?

I have configured my Ubuntu Oneiric to automatically login to a standard user account. This setup is for my parents who don't know much about computers. But when I use it I need to login as an ...
0
votes
1answer
387 views

Kubuntu proprietary drivers vs open source

Which driver has better performance with the KDE desktop environment for kubuntu 11.10? Laptop integrated AMD Mobility Radeon HD 3200.
1
vote
3answers
1k views

Ubuntu on older Laptop

I installed Ubuntu on an older computer (with pentium M processor) and it is very slowly. I don't think this is a bug, but just a too slow computer for the standard version. What can i deactivate or ...
0
votes
1answer
5k views

Why is my video playback always bad? [duplicate]

Possible Duplicate: Why are Flash applications so sluggish? I am wondering, why is the HD video playback under Linux so bad? I mean, HD videos are laggy . I've tested many distos, on ...
3
votes
5answers
1k views

How can I improve performance and user experience in 11.10 (boot + shutdown time, graphics, …)

I've been dual-booting with Ubuntu and Windows since Ubuntu 9.04. This was the first time I used Ubuntu and was really happy with it. The boot and shutdown time was very nice and much shorter than on ...
0
votes
2answers
945 views

Why I get non-symmetric usage of CPU on multicore PC

CPU: AMD Phenom II X4 955 Ubuntu 11.10 amd64 I launch some application that use only one core and when I look at cpu-load graphic in gnome-system-monitor I found that all of my four CPU's loaded not ...
0
votes
1answer
99 views

Which hardware upgrade will give me the greatest performance boost with Ubuntu 11.10(with list of currently installed hardware)?

I have the following components in my computer: https://docs.google.com/spreadsheet/ccc?key=0ArazBkOGrxEbdDhjc1lJWklJMEV5RlVrdzVYcHdMYWc The system currently works okay with Ubuntu 11.10 and unity. ...
2
votes
3answers
636 views

Disk I/O makes desktop unusable. System consumes too much memory

I have a long-term problem with my Acer TravelMate 3002WTMi (Pentium-M 1.73Ghz, 512 MB RAM) and Xubuntu 11.10. Whenever load increases machine tends to slow down to the point that it's totally ...
1
vote
2answers
1k views

Problem with Hibernate on Ubuntu 11.10 slow

I installed Ubuntu 11.10 on my machine and I notice several problems with the Hibernate functionality. When I use s2disk/pm-hibernate, I see an embarrassingly slow wakeup from the hibernate state. I ...
2
votes
1answer
644 views

Which Ubuntu version will work best with 845G motherboard?

I have been working with Ubuntu version 11.04 and I have noticed that it is a lot slower than xp. Like, windows take more time to open. Processes take more time to complete. Even surfing the net is ...
0
votes
5answers
14k 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
545 views

Improve VNC connection speed over LAN

I am wondering if there is anyway to increase the performance of a VNC connection. I have an server setup (ubuntu) with a wired connection to the router. Its connected to the house sound system. I ...
4
votes
6answers
3k views

Should I switch to Xubuntu for better Flash video performance?

I have HP Mini 2133 netbook, with 1200MHz processor and 2GB of RAM. I am currently using the normal Ubuntu. But, Flash videos (on YouTube, etc.) do not play smoothly. I tried all optimizations, but ...
2
votes
1answer
279 views

Is Ubuntu/Unity More CPU or GPU Intensive?

The answer is really important. I want to know if it's more cpu or gpu intensive I'm choosing between sandy bridge and llano.
2
votes
3answers
3k views

Which CPU will work best with Ubuntu?

I'm choosing between two laptops with an AMD A6-3400 and Intel Core i3 Sandy Bridge. I want to know which CPU is better with Ubuntu as in performance? Using laptop for browsing and programming.
1
vote
1answer
249 views

Does removing extra workspaces in Unity2d impact CPU or RAM performance?

I never used workspaces, so I have set number of workspaces to 1. After restarting, unity seems to be kinda snappier. What`s in theory?
1
vote
0answers
137 views

New system runs WAY slow.. What to look for? [duplicate]

Possible Duplicate: How can I improve overall system performance? I have a new Ubuntu installation (11.10) on an older machine (Intel P4 1.7G). System monitor shows CPU usage pegged most ...
1
vote
1answer
1k views

Slow window movement with unity on AMD 6950

I am new to Ubuntu and I like it. I have some issues with the window movement performance (in Unity). My PC has a AMD Phenom X4 955 processor, 4 GB ram and AMD HD 6950 graphics card. So its not that ...
2
votes
1answer
177 views

Can I use kernel-seeds on top of Ubuntu kernels?

Former Gentoo user here. I'm trying to optimize the system by recompiling kernel specifically for my processor and disabling code I won't be using (to reduce memory consumption, improve speed etc.). ...
2
votes
1answer
529 views

Do GNOME Shell extensions have any impact on system speed?

I loved the various extensions available for GNOME Shell but I don't want to enjoy their benefits at the cost of slowing the system down. Is there any known impact?
2
votes
2answers
616 views

Slow startup on a Dell Inspiron 1012

Ubuntu11.10 is very slow to start up and shutdown comparing with ubuntu 11.04. I am using ubuntu 11.10 on a mini Dell Inspiron 1012 (N450 atom) I only have one program in the startup applications and ...
1
vote
1answer
3k views

Flash player performance issues [duplicate]

I have serious performance issues with flash on ubuntu 11.10. the problem manifests itself when I try to play large flash files on hosting sites like gorillavids.com and the like. the playback starts ...
1
vote
1answer
805 views

What software can I use test the performance of my system?

I installed Ubuntu (11.10 64bit) to my new laptop (Asus A53E-XT4), and would like to test capabilities, especially it's 6GB's of RAM. Is there any software in the Software Center (or on the web), ...
2
votes
0answers
450 views

Why do I have poor video performance in browsers with a ATI HD3650 GPU? [duplicate]

Possible Duplicate: How do I fix Flash issues? I'm experiencing poor video performance on Youtube, both in Firefox and in Opera - Flash and HTML5 (all of the combinations). HTML5 is ...