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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5
votes
1answer
1k views

Laptop's hard drive doesn't really spin down

I have a new laptop with dual boot to both windows 7 and ubuntu 11.04. While in ubuntu, the laptop gets significantly warmer than in windows. My suspect is the hard drive, because I feel it's ...
12
votes
3answers
4k views

Is Gnome 3 lighter than Gnome 2?

As we are going toward Gnome 3, I would like to know what to expect. May be a more responsive desktop, faster startup of apps? Or should I start to thinking in another DE if performance is a concern? ...
2
votes
1answer
2k views

USB data transfer rates lower than expected

USB "data transfer rate" on Ubuntu 11.04 is 13MB/sec. This should be about 5x that for USB 2.0. Anyone have a clue why I am getting USB 1.0 speed out of a modern mainboard with zero USB 1.0 ports and ...
6
votes
1answer
411 views

Is Firefox 6 performance worse in Ubuntu than upstream?

It has been said that Firefox 6 will perform better than previous version because it compiles with a newer version of GCC, version 4.5, and aggressive optimization. When I updated to Firefox 6 in ...
6
votes
2answers
2k views

What differences do I need to know choosing between ext4 and NTFS (Performance etc)

I understand that ext4 if faster than NTFS. But whats the speed difference if its like < 20MB/s, perhaps its better to use NTFS for convinence? What are the other implications of this apart from ...
34
votes
3answers
40k 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 ...
6
votes
1answer
1k views

How to speed up Evolution

I have a moderately big Inbox file (around 2.3Gb) and Evolution takes a lot to start (it takes over 2.5 mins until I can perform any action -read or compose mail, for instance-). During that time, the ...
0
votes
1answer
614 views

Why is my laptop's wireless Internet connection slow?

I'm sitting on the same level as my wireless router but still the internet is acting pretty slow. PING any-fp.wa1.b.yahoo.com (69.147.125.65) 56(84) bytes of data. 64 bytes from ...
19
votes
4answers
3k views

What in /home would benefit from being on an SSD?

In Is a 40GB SSD practical to use for ' / ' Jorge describes how he symlinks directories in his /home that would benefit from being on an SSD. The directories he names are ~/.cache ~/.config ...
2
votes
4answers
478 views

Getting a new hard drive - Running Linux/Windows in a Virtual Machine

I don't want this to turn into an argument about linux/windows. Please try to answer this objectively I'm getting a new hard drive today and my current setup (on this machine) is running Windows with ...
4
votes
2answers
1k views

How to troubleshoot and tweek unreasonably slow wireless connection?

I've just acquired a USB F5D8053ed Belkin adapter and it is unreasonably slow. Details of how I installed the firmware and device driver are described in this AU Question. I believe there is either ...
6
votes
2answers
11k views

Switching mdadm to an external bitmap

I've just read this in another post about improving RAID5/6 write speeds: After increasing stripe cache & switching to external bitmap, my speeds are 160 Mb/s writes, 260 Mb/s reads. :-D ...
4
votes
1answer
734 views

Downloading large files hangs system

When Im trying to download large files, i.e. 1gb or more under FireFox, first of all it starts with very big download speed and in few seconds in almost get up to max (~11 MBps). It is downloading ...
10
votes
1answer
3k views

How do I improve my server disk performance

I have an HP Microserver running Ubuntu 10.04 LTS. It's a low power server with 5 internal drive bays. I use it to backup my remote servers, VPSs and local laptops over the network. I want to get the ...
1
vote
1answer
648 views

Turn a mac mini g4 - 1.4 ghz, 2 gb ram - into a home server

I'd like to build a small home server (backups, download station and media server with dlna). Anybody knows if this spare mac I have is worth for the specified jobs using Ubuntu Server (I've already ...
6
votes
1answer
1k views

Unity is slow and laggy on my PC

I love Unity but its performance is slow and it always lags when I multi task. I have 512 MB of RAM. Please help me, I want to do my work smoothly with Unity.
0
votes
1answer
2k views

Will encrypting my (huge) home directory slow performance? [duplicate]

Possible Duplicate: Performance Overhead of Encrypted /home The Ubuntu installer offers to encrypt my home directory. Since I have hundreds of gigabytes in my home folder I am worried ...
1
vote
2answers
555 views

How to measure performance of a web browser?

I am curious to know which browser is the fastest one on my thinkpad x300 running Ubuntu 11.04. Could someone tell me how to measure performance of a browser on ubuntu 11.04, please?
0
votes
1answer
337 views

Will a Virtual Box Installation have low Disk performance

I understand that if you install Ubuntu on Windows using Wubi, there are disk performance issues since the entire system is mostly concentrated on a single file. What about the case of a Virtual Box, ...
2
votes
1answer
7k views

Low graphics performance with Intel HD graphics

hey, my laptop should be capable of running some games fine but doesn't. Examples are egoboo and tome. http://www.ebuyer.com/product/237739 this is my laptop. I tried the gears test and i only get 60 ...
3
votes
1answer
2k views

Install to SD Card

I've been wondering about improving the performance and battery life of my netbook by installing my root partition to an SD card. Will there be any performance benefits (or drawbacks)? Are there any ...
0
votes
3answers
2k views

Ubuntu 11.04 + Radeon 4850 = performance problems and graphic problems

I did not install Ubuntu 11.04 on the first day because i tought: okey maybe there are some bugs, i give them some days so they can fix them. But now i got it with the hope the most anoying bugs are ...
4
votes
1answer
10k views

Poor Performance with Intel HD 3000 GPU

I am running the 8,1 Macbook Pro. It has the integrated Intel HD 300 gpu. I've noticed the graphics performance is drastically worse in Ubuntu than in OS X. I tested this using the bullet physics ...
2
votes
1answer
149 views

Laggy file manipulations with Unity

I just upgraded to Ubuntu 11.04/Unity, and every file manipulations just feel very laggy (at least one second): Selection Drag and drop Even folder browsing My hard drive is OK, I'm using the ...
3
votes
1answer
8k views

How do I disable TCP Window Scaling?

TCP Window Scaling is part of RFC1323 - TCP Extensions for High Performance I'm on Ubuntu 10.10 at the moment. For an immediate effect I have run the following: sudo sysctl -w ...
6
votes
6answers
4k views

What's a good cheap video card?

Can anyone recommend a good, cheap video card that can handle modern desktop requirements? Cheap is somewhere under $50. I'm talking about decent 3d effects for Unity and friends, as well as playing ...
2
votes
3answers
769 views

Graphics very jerky on Natty Narwal

I just got a new laptop, and installed narwal on it. Things like youtube videso play fine, however "system graphics" (for lack of a better term) are extremely jerky, for example closing a tab will ...
2
votes
4answers
2k views

Would I benefit from reducing, or increasing swappiness?

I've read a few articles now about changing the swappiness level on Ubuntu to possibly increase performance. But I'm very unfamiliar with how swappiness works, would I benefit from increasing, or ...
1
vote
2answers
402 views

What's the best, most compatible sub-$100 graphics card for Natty?

Since upgrading to Natty graphic performance has been absolutely terrible despite having decent system specs. I'm willing to buy a new card if it will make the interface fast again. Can someone ...
3
votes
2answers
2k views

Video performance on a Lenovo T520 is slow

I have a new Lenovo t520 with 8gb memory and a i7 cpu. It's the first time I 'really' install Ubuntu on a pc. I have about six months of experience with Ubuntu as a guest OS on Windows in a VM. Now ...
0
votes
1answer
505 views

Ubuntu server unstable performance

I am experiencing frequent drops in performance of my server (affects both webserver performace and ssh). It may work fine all day and then suddenly pages load 10 times slower. After awhile it comes ...
32
votes
5answers
77k views

How to perform a detailed and quick 3D performance test

I am wondering how to quickly test performance of my 3D graphics. Since glxgears is not benchmark what should I use. Also glxgears sometimes stuck at 60FPS, you cannot even compare before/after driver ...
3
votes
2answers
2k views

Graphics performance of 945GME

Edit: Since setting Appearance -> Visual Effects up to a stunning "Normal", I now get ~35 FPS in glxgears right after login, with nothing else running :( I'm getting terrible graphics performance in ...
7
votes
2answers
856 views

Get flash drive to cache disk reads to primary partition

Basically I'm looking for a way to mimic Windows' ReadyBoost. I asked this question on Unix.SE to get an idea of whether this was even possible and it seems like it is. Appparently there is a cachefs ...
6
votes
3answers
4k views

How to speed up rsync/tar of large Maildir?

I have a very large Maildir I am copying to a new machine (over 100BASE-T) with rsync. The progress is slow. VERY SLOW. Like 1 MB/s slow. I think this is because it is a lot of small files that ...
1
vote
2answers
1k views

Thunderbird compact is taking forever

The other day I came in to work and found that our development server - a Ubuntu box - had a full hard disk. I did a bit of investigation and it seems like mozilla thunderbird is the major culprit. ...
3
votes
2answers
1k views

Slow Ubuntu 10.04 after long time unused

I'm at spring break so I'm back at my parent's house. I've turned my computer on which has been off since January and its unusably slow. This was not the case when I last used the computer in January. ...
4
votes
4answers
841 views

MacBook Pro: should I virtualize Ubuntu or use Boot Camp?

I'm looking to run Ubuntu on a 2008 MacBook Pro 2.4Ghz C2D, 2GB GDDR3. Will it be okay performance wise through virtualization such as VMWARE or should I use BootCamp? Thanks.
3
votes
6answers
3k views

How to tweak Ubuntu running on an old PC?

After getting some old, but fancy hardware from my friends, I want to setup a second PC running ubuntu. Due to the fact that the hardware is more than five years old, I'll have to tweak some things to ...
5
votes
4answers
26k views

How to check system performance?

Is there a way to measure the performance of 3D acceleration, java applets, firefox scrolling etc. with a tool and compare it with lets say a windows OS or other users having almost the same hardware? ...
4
votes
2answers
2k views

RAID slow on all levels

I am getting very slow write speeds (<1MB) with RAID 1 and RAID 0 (striping and mirroring). The read speeds are sufficiently fast but writing is very slow. At first I thought it was just poor ...
1
vote
2answers
2k views

Tuning my Ubuntu installation [closed]

I'm using Ubuntu 10.10 and i'm interested in hearing a few tips on how to improve performance and tune my system to be faster. Any articles or links on this? Thanks in advance!
2
votes
1answer
192 views

Should I reorder partitions regarding performance

I have in principal 3 big partitions on my Netbook. One Windows, one for shared files, one for Ubuntu. I recently find out (using hdparm) the the hardisk seems to have much better perfomance on the ...
7
votes
3answers
9k views

Ubuntu slows down over time?

About a few months ago I was using Ubuntu (doing something in the command line) when it started lagging really bad. I would hit S (or any other key) and like 20 seconds later it would show up in my ...
23
votes
4answers
13k views

What is the performance overhead of encrypted /home?

I have a netbook with Windows on the second partition and Xubuntu (/ and /home) on the third partition. I selected to encrypt my home folder during installation. The performance of the netbook is ...
13
votes
6answers
35k views

Best way to set up DNS caching?

In order to speed up DNS lookups, I want to install a DNS cache or proxy. I can see at least three programs I think will do the job: bind9, pdnsd, or dnsmasq. I would like to make sure that if I ...
2
votes
1answer
983 views

System has gotten very slow of late. How to unearth the problem?

I have been running processor and memory intensive tasks past 2 weeks. But, even after i stop the run, the system is pathetically slow. A simple operation like opening the terminal by clicking on the ...
8
votes
2answers
5k views

Performance cost of running Ubuntu from external hard drive

A friend just complained to me about Ubuntu being slow. Although I've noticed a certain lack of snappiness with Linux vs Windows in the past, I really can't say I've had much to grumble about with ...
6
votes
1answer
3k views

Slow Response and System Lag

Recently my computer has been responding slowly. It was fine few days ago, but now it always lags. I need to find the cause. Thanks.
7
votes
3answers
5k views

Tips for debugging Samba performance?

Samba gives me 24 MB/s read and 44 MB/s write, while ftp gives 97 and 112 MB/s under the same circumstances. The documentation says that Generally, you should find that Samba performs ...