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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3
votes
1answer
65 views

How do I diagnose a sudden slowdown

Running a particularly compute-intensive task on my computer (Tecra W50) for more than a few seconds causes it to become very slow. Performance does not return to normal after the task completes. ...
0
votes
0answers
14 views

Ubuntu Gnome doesn't run properly on my laptop

I'm using Ubuntu Gnome 15.04 and it's get hobbled sometimes. for example, when I try to move to some other window, it doesn't move smoothly, or when I watching a video on youtube - it's "spiky".. did ...
2
votes
2answers
36 views

nVidia GeForce 2 Aopen MX-400 64 Mb video card is slow [on hold]

My motherboard burned out and I replaced it with another lga755 with a better processor, E8400 4 core vs E5200 2 core, with more memory, 6 Gb. The motherboard did not come with integrated ...
4
votes
3answers
8k views

Recommended testing tools to test MySQL performance?

What is the recommended tool(s) for testing the performance of MySQL 5.5 (innodb) under Ubuntu 12.04? We have purchased a new multi-cpu multi-core server to replace our current MySQL dual-core ...
5
votes
2answers
671 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 ...
0
votes
1answer
31 views

Performance problems with Ubuntu 14.04

My computer's performance (A 2012 Macbook Pro, i7 with intel hd 4000), specifically with gaming, has been lacking in Ubuntu compared to my other operating systems, OS X and Windows. I feel like this ...
-3
votes
0answers
21 views

Mapreduce job takes lots of time [closed]

The mapreduce job doesnot proceed from the line: 15/07/24 13:15:25 INFO client.RMProxy: Connecting to ResourceManager at /127.0.0.1:8032 15/07/24 13:15:28 INFO input.FileInputFormat: Total input ...
0
votes
3answers
6k views

How can I figure out what polkitd is doing with so much of my system's resources?

I'm running 13.04 on an acer c7 (chrubuntu 12.04 install then two system upgrades) and now whenever I use my computer for more than a few minutes, it slows down as polkitd, dbus-daemon, ...
89
votes
6answers
204k views

How to check hard disk performance

How to check the performance of a hard drive (Either via terminal or GUI). The write speed. The read speed. Cache size and speed. Random speed.
0
votes
0answers
20 views

how to boost up ubuntu 14.04 performance in Sony VAIO E series?

I am using Ubuntu 14.04 LTS and getting very low performance. I have 4Gb RAM and intel core i3-2330M 2.20 GHz processor. Is it possible to improve performance?
0
votes
1answer
21 views

GUI for monitoring CPU usage (including L1/L2 caches) in real time?

Is there any GUI available in Ubuntu which shows detailed CPU usage, including L1/L2 cache usage? So that while running a custom program, I can monitor the CPU utilization in detail. The default ...
3
votes
2answers
7k 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 ...
0
votes
0answers
24 views

Choose Different Screen Layouts with Latest NVIDIA Driver Dual 4K Setup

I just bought a ASUS PB287Q monitor and hooked it up (via HDMI) to my ASUS N550JK-DS521H. Everything works...but the performance of rendering on the external (right) monitor is terrible. So bad I can ...
1
vote
3answers
49 views

Speeding up ubuntu machine [closed]

Does below command improved performance of the machine: sudo sync && echo 3 | sudo tee /proc/sys/vm/drop_caches I know this is for freeing RAM. Please guide
2
votes
2answers
189 views

Worse compiz performance in Ubuntu 14.04LTS

I know this question has been asked multiple times before, but they seem to be like 3-4 years old now and I could not find any associated with Ubuntu 14.04. Also, solutions mentioned there do not ...
1
vote
3answers
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 ...
1
vote
1answer
37 views

Sluggish Desktop Experience on Laptop with External 4K Monitor

I just bought a ASUS PB287Q monitor and hooked it up (via HDMI) to my ASUS N550JK-DS521H. Everything works...but the performance of rendering on the external monitor is terrible. The experience on the ...
0
votes
2answers
29 views

How do I deal with mplayer2 forwarding latency?

I use smplayer as default player on ubuntu 15.04, which is provided by mplayer2 now. It takes mplayer2 more than 3 secs to forward a video, which is unacceptable. On ubuntu 12.04 or 14.04 LTS, ...
2
votes
2answers
52 views

Compilation time slow on a single computer

We are experiencing some really slow compilation times on a single desktop computer that we use as the primary workstation for a research project. Compiling our codebase on this computer takes 42 ...
11
votes
6answers
31k 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 ...
0
votes
0answers
9 views

what is status “ fsnotify_mark_destroy ” in wait channel?

Recently Iam seeing lot of "fsnotify_mark_destroy" as the wchan state for process .May I know more details on this status
76
votes
7answers
85k views

How to empty swap if there is free RAM?

When I open a RAM-intensive app (VirtualBox set at 2GB of RAM), some swap space is generally used, depending on what else I have open at the time. However, when I quit that last application, the 2GB ...
2
votes
1answer
187 views

14.04, I have Disabled CPU throttling, but installing Atlas says: “CPU Throttling apparently enabled”

My PC is using ubuntu 14.04, and I need install Atlas. Atlas says: it need to disable CPU throttling, I have done the job to disable it. cat ...
2
votes
2answers
2k views

Occasional excessive IOWait freezes computer - how to diagnose?

I have a very slow SSD on an eeepc900A, and it occasionally freezes the OS (even the mouse pointer) with system monitor showing excessive IOWait. How can I diagnose what is causing this and should ...
0
votes
0answers
14 views

What should be my Wine configuration

I use a laptop with 3rd Gen CORE i5-2410M with 6 GB of RAM. I wanted to know what would be the best configurations(suggest me regedits and other things) for wine that could be done for playing games ...
5
votes
4answers
879 views

How can I empty the trash without first opening it?

The only way I've seen how to empty the trash is to use the Empty Trash button that is displayed after choosing Go | Trash in Nautilus. If there are too many items in the trash it can take a long time ...
0
votes
0answers
34 views

Slow performance (Ubuntu 14.10) on core i7 (mobile 3rd)and 8 GB of ram.(Asus k56cb)

community I been using windows for ages, but I wanted to try something new, and get some experience on Linux based OS. So I have formated my ssd and installed Ubuntu, installed updates and needed ...
2
votes
5answers
408 views

Switched from Windows XP to Ubuntu [duplicate]

I have a computer, below are the specs: RAM: 1GB DDR2 Processor: Intel(R) Celeron(R) CPU 2.53GHz Network Adapter: Intel(R) PRO/100 VE Network Connection (Ethernet) 500GB IDE HDD The computer is ...
1
vote
1answer
45 views

No hardware events in perf list on PC w/ Intel Core i7-4770 CPU running Ubuntu Server?

I have dell desktop with Intel Core i7-4770 @ 3.4GHz CPU. There, I have installed Ubuntu server 15.04. Afterwards I have install linux-tools-generic and linux-tools-common to install perf tools. ...
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 ...
1
vote
3answers
58 views

Does shutting down and restarting Ubuntu have an effect on its performance?

This article talks about how OS's accumulate all sorts of unnecessary things in the RAM due to continued use. Is this the case with Ubuntu too? Just curious as my computer has been getting a bit ...
1
vote
1answer
900 views

Advantages of alternative kernel

Recently I have seen an WebUpd8 article about an alternative kenrel to the stock Ubuntu kernel, the pf-kernel, that supposed increases performance. I am running Ubuntu 12.10 using kernel 3.5.0-30 ...
1
vote
0answers
99 views

Shutdown Takes too much time in Ubuntu 15.04

I upgraded Ubuntu 14.10 to 15.04 about a month before, after upgrading I'm facing too much of performance issues and it also takes too much time to shutdown. Is there problems with this new release of ...
1
vote
1answer
34 views

CPU benchmarking utility for Linux

I am looking for a utility that will benchmark CPU performance under single and multi threaded instances. At present I have an old rig with a dual core CPU (E7500) at 3.6 Ghz and I am looking at ...
263
votes
40answers
201k views

How can I improve Ubuntu overall system performance?

What are your tips for improving overall system performance on ubuntu? Inspired by this question I realized that some default settings may be rather conservative on Ubuntu and that it's possible to ...
0
votes
0answers
192 views

Perfromance in gaming, In Ubuntu 15.04

I have problem with game performance, for example in War Thunder when I'm setting up a lowest graphic settings I have around 20-30 FPS (same situation in CS:GO), it's very poor performance for my ...
1
vote
0answers
52 views

Video Editing Performance?

I'm relatively new to Linux but love using Ubuntu and it has become my preferred OS for daily use. I am really disappointed I don't seem to ba able to edit video on Ubuntu 14.04 with my Lenovo ...
0
votes
2answers
105 views

Why is dash autocomplete (super key) slow?

I like the dash autocomplete feature (super/windows key) to open applications. But the feature is slow. In 90% of all cases I open keepass or emacs. But it takes several seconds to show the results ...
0
votes
0answers
126 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 ...
12
votes
2answers
19k views

VNC session very slow in 12.04 compared to older versions

I have a 12.04 X64 Desktop install on a machine where I previously had 10.10. Previously I've used both the built-in vino and tightvncserver to provide the VNC session. I connect to them using Chicken ...
11
votes
2answers
1k views

How to make faster first search at Unity-Dash? Way slower than second one

After a reboot, first searching at Unity Dash will be slower (15 sec) than the second search (seems instant), on my system at least. I guess this is because file index is cleared after a reboot and ...
2
votes
1answer
52 views

How do I use dmesg to diagnose slow boot speed?

I've installed Ubuntu 15.04 on a new Lenovo Thinkpad S440. With 8 gig of RAM, an i7 and an SSD I expected Ubuntu to boot in a few seconds, instead it seems to be taking almost a minute. I've read a ...
2
votes
1answer
169 views

Very slow Chromium browser

On my machine Chromium is very slow, I had to switch to Firefox where everything works fine. Looks like this is a kind of JavaScript problem (eg. slowed down typing on Facebook), pages loading slower, ...
-1
votes
1answer
580 views

Improving gaming performance in wine

When running League of Legends through wine I get about 50fps while I would like to run the game at a stable 60fps with vsync. Is there any way I can achieve higher framerates, or is my hardware just ...
23
votes
5answers
49k 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
83 views

Ubuntu very slow startup

My new laptop is taking very long (a few minutes) until it reaches the log-in screen. Here is the output of dmesg: http://pastebin.com/MuW79kVd I think the important part is the following gap in ...
0
votes
1answer
85 views

ubuntu 14.10 too slow to open VLC player

my ubuntu 14.10 is too slow .It takes about a min to open a video in VLC media player. Even other software are too slow to open. My Laptop is new & has high end specifications.
0
votes
1answer
30 views

Ubuntu 12.04 lags very bad at my laptop

So I recently decided to change from Windows XP to Ubuntu 12.04 on my crappy 1gb RAM & 1.6GHz laptop. The problem is that it lags A LOT. Like first 5 minutes I can use it fine but then it just ...
1
vote
0answers
55 views

Home Computer Build Designed For Optimized Performance With Ubuntu

Perhaps this is not a question for this forum, but I hope I can get some good info here. I currently dual-boot Ubuntu on a MacBook Pro. The OS performance is unreliable on my laptop, so I am hesitant ...
0
votes
2answers
67 views

Can I really experience performance in a LiveCD context?

I don't know exactly how LiveCD works, but I know that everything is happening on the RAM memory, so a great part of the RAM would be used by the OS itself. Can I really experience performance in a ...