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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I/O Performance on my mounted drive is extremely poor

I have a windows 7 machine. I have installed Oracle Sun Virtual Box here. On this Virtual Box I have Ubuntu 14.04.2 LTS installed. I have mounted a remote windows network share in my ubuntu using ...
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0answers
19 views

Slow Ubuntu 14.04 LTS on Dell PowerEdge R220

We installed Ubuntu 14.04 LTS 64-bit on Dell PowerEdge R220 server but the system is really slow. Do you know whether this is because of a missing driver or it is something else ? Memory: 3.7 GiB ...
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0answers
12 views

Java based application is really slow

I am using Ubuntu 16.04. I have a big problem with java based application. When I use java based application, the application always become really slow. The application I used are Cytoscape and ...
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0answers
22 views

How much will installing Macbuntu affect the performance of a low-spec system running Lubuntu?

How much will this theme affect performance on Lubuntu 16.04? The system in question has limited hardware. Intel Atom 1.66 GHz dual core, 1GB RAM. Will the performance impact be so small as to be ...
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3answers
73 views

Only 1 GB of RAM. Should I go for 32-bit Lubuntu, or 64-bit?

I know this has been explained very well in general, but I want to ask for advice on this particular situation. I hope it's not considered a duplicate. My friend has this old netbook with only 1 GB ...
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0answers
39 views

14.04 to 16.04 upgrade : Huge slowdown, why?

I have an older laptop with 2GB RAM. I have been running Kubuntu 32-bit installations for a number of years. I decided to move from 14.04 to 16.04. I had the option of 32-bit or 64-bit. I do have the ...
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0answers
24 views

Slow Performance 16.04LTS

Today I installed ubuntu 16.04 LTS in my laptop. I realized that even without having anything installed and my apt already updated, it features slow and loud noise coming from the hard drive, like ...
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25 views

Terrible performance

The pc is very slow when I turn it on, but when I restart it then it works normally without bad performance. I tried many distributions and all have this problem. I have a Toshiba C855D-S5307 with ...
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0answers
14 views

Regarding TTFB and CPU utilization relation

I have quick question regarding TTFB and CPU utilization time in waterfall chart. Is there any way to reduce TTFB in front end side? And would CPU utilization will affect rendering or any performance ...
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0answers
35 views

Ubuntu 14.4 running slow

I just bought the new Dell XPS 13 Developer edition which came preinstalled with ubuntu 14.04. After the initial boot it seemed a bit slow, but then it updated and worked fine, then later the same ...
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1answer
32 views

How to put ubuntu 14.04 LTS into Performance mode

I've tried the indicator-cpufreq but look at this: Screenshot of the indicator Rendimiento means High Performance and Ahorro de energía means Powersave. Seems like the indicator is obsolete, is ...
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0answers
56 views

Windows flickering, lag on window resize

I have a 3 Years old PC (GeForce GTX570, i7, 16GB RAM, SSD, 2x 24'' LCD monitors) and I installed Ubuntu 15.10 (I also tried with Mint). Depending on the graphic driver I installed, I got various ...
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0answers
30 views

Ubuntu running extremely slow on P4 1GB RAM. New Install. Used to run well previously

i am currently running Ubuntu 14.04 64 bit on a Pentium 4 with 1 GB DDR2 RAM. It used to run butter smooth on 2 GB RAM. Unfortunately I had to remove 1 RAM card to use in another old PC. And now, in ...
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0answers
26 views

How to make dragging windows not lagging behind?

I am new to Ubuntu and I feel my window manager (I've tried Unity and Cinnamon so far) is not fully responsive. In fact when I take a window by holding its title bar and moving it around, the window ...
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1answer
165 views

Virtual GPU for Ubuntu 16.04 Clients on VirtualBox

Assuming the host OS has a GPU, can anybody tell me if Ubuntu 16.04 clients run using VirtualBox will be able to make use of the GPU through virtualization? I read that GPU virtualization is only ...
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2answers
102 views

When can i use linux on my new computer? [closed]

I have recently built a beast! however I am finding it very difficult to use Linux on it. I am still considered a noob for my level of Linux knowledge but I am not new to it. It is comprised mostly ...
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1answer
76 views

Ubuntu is fast at one moment, but slow at the other moment

I am using Ubuntu 14.04 on my computer that acts as a server. Short pc spec list (lshw): http://pastebin.com/7ud6rpxX The average number of procs is 500 (I have got a little widget that I forgot the ...
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3answers
58 views

Do I need to clear out swap to make my computer fast again?

I ran a process which used up mostly all my RAM and Swap... I was forced to kill the process, but now I see something strange, my Swap usage has decreased a little bit, but it is still half used while ...
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0answers
43 views

Fresh Ubutnu 14.04 on External SSD slow

I installed a fresh copy of Ubuntu 14.04 onto a new USB3 connected SSD drive and it seems to be very slow. The slowdowns are particularly apparent when performing actions such as opening programs, ...
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0answers
32 views

kworker CPU hog - waking up from suspend

I have the (apparently very common) problem of 'kworker' hogging CPU usage. As mentioned here, the solution for many is identifying the problematic 'gpe'. This solution seems to apply to my situation, ...
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0answers
18 views

Tile server performance seemling inconsistant with SSH Launch vs 'Local' Launch

I am setting up a Dell PowerEdge R410 as a tile server (i.e. a server which serves web map images á la Google Maps) and experimenting with TileStache -- a Python application which handles HTTP ...
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0answers
19 views

Performance issue when turning the pc on but dissapears when restarting

I am new to linux. My problem is that when i turn on the pc it is terribly slow, but when i restart the performance normalizes dissapears and the performance normalizes. I had the same issue also in ...
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0answers
22 views

Graphics and CPU Performance Programs

Are there any applications similar to "Razer Cortex" or "nVidia Experience" that will run on 15.10? I really love playing Counter-Strike: Source and Counter-Strike: Global Offensive but they lag ...
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0answers
90 views

Android Studio & Emulator slow performance in Android Studio on Ubuntu?

On my mac Android Studio is usable, however on my Linux Ultrabook, normally a fast machine, Android Studio and the Emulator are so slow (5 mins to start, one response or less per minute) that they are ...
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1answer
71 views

Will xubuntu and lubuntu give better performance for software development tools

I have tried xubuntu and lubuntu and found battery sacing distro. Will these distros provide me enough performance for using software development tools like eclipse, netbeans, tomcats, xampp etc ...
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21 views

Performance Alerts

Is it possible & how do I, in Ubuntu to setup a performance monitor / event at a certain performance. I want setup a monitor that calls a .SH script on a couple of things the first and major one ...
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0answers
11 views

What should be compared with ullimit -n

I know that max number of opened files per user is set in $ ulimit -n What is the right way to get a number to compare it with? My guess would be $ lsof | grep "REG" | wc -l but this number ...
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1answer
39 views

Slow display rendering on ATI Radeon with rotated display

I'm running XUbuntu 14.04 and I have a AMD Radeon HD 5450 graphics card and two Dell UltraSharp U2415 24" displays (1920x1200) where one display is rotated to be portrait. My system has never been ...
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2answers
75 views

Ubuntu lagging a lot in my laptop

I just installed Ubuntu on my PC, but it lags a lot. My pc runs all other OS at high speed, only Ubuntu is really slow. System specifications: Lenovo y_40 8 GB RAM 500 GB HDD Intel® Core™ i7-4510U ...
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0answers
43 views

Performance mode in a Desktop enviroment

I'm running Ubuntu Gnome 15.10 x64 in a desktopPC. What really annoying me is that each restart or start begin running in a power-safe mode.. It could be useful with a laptop, but in a desktop ...
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0answers
43 views

Choppy windows, slow animation/performance

So basically I just did a fresh install of ubuntu 15.10, I installed a recommended driver, which is nvidia-352. I recorded a video to show what's happening http://www.youtube.com/watch?v=5BE7D4MOzF8 ...
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0answers
46 views

Why the screen is turning black and white in Ubuntu 14.04?

I am using Ubuntu 14.04. Frequently I am facing this issue of screen turning black and white for few seconds(20-30) and in that time I cannot use that application. I felt like(dont know this is ...
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2answers
50 views

ubuntu 14.04 running slow on bootup and online

My apologizes right off is I do not know much about computers. My laptop crashed and was replaced by my sons college desktop computer that he built. we had a problem with windows XP on it and ...
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0answers
20 views

Massive throttling when switch from charger to battery on Ubuntu 15.10

When I watch a 1080p video on youtube, I got easy 60 frames/s. But when I plug out the charger the framerate drops below 20 f/s (even if battery is 100&). The governor is set to performance, but ...
0
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1answer
597 views

Intel HD 520 really weak performance | Ubuntu 14.04 LTS

Using Lenovo e460 with i5-6200u + Intel HD 520. Performance is terrible, 20FPS on games I got 80+ in Windows (same settings) and even native linux games like CSGO. I've done all the updates etc, ...
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0answers
166 views

Strange cpufreq scaling issues: regardless of governor, max cpufreq drops incrementally on wake

I am running Ubuntu Mate 15.10 64bit (kernel 4.2.0) on a Lenovo y5070 with an i7-4710HQ cpu. I noticed recently (possibly after a recent dist-upgrade) that certain programs were really slow. After a ...
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2answers
91 views

With all respect ..but Why linux sucks so much on gaming? [closed]

I mean on windows 10 i play left4dead 2 full res,full detail maxed everything and it plays it fluently and nice. On ubuntu,xubuntu,kubuntu it sucks so much that i must lower many settings to make it ...
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0answers
76 views

Not able to run perf on linux 4.4 kernel

I'm not able to run perf on linux 4.4 kernel version. I'm using ubuntu 15.10. I have also installed linux-tools specific for this kernel. But when I try to run perf from the terminal I'm getting this ...
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1answer
823 views

Performance with Intel skylake 6500U with integrated graphics HD 520

I just got a new laptop (razer blade stealth) with the following configuration : Intel skylake i7 6500U Intel HD Graphics 520 8Gb of RAM 512Gb SSD 4k Display I know this question might seem too ...
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1answer
44 views

Ubuntu Server 14.04.4 server setup

Need some help on my configuration on my low power server. I have a multiple applications loaded on my ASRock Q1900M Intel Quad-Core Celeron Processor with 4GB memory and 2 TB WD green drive. The ...
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0answers
20 views

Should I use an older version of Ubuntu? [duplicate]

I just installed Ubuntu Gnome 14.04 fresh earlier today and the cpu maxes out several cores while watching Youtube videos and the cores run high while doing pretty much anything. Is Gnome my problem ...
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0answers
26 views

xfs on raid0(mdadm) proper mounting

Reading manuals on howto tune xfs on raid is totally crazy. In my case I have raid0 of 2 disks with 512K chunk size. Physical disk block size is 4096 The correct su and sw should be su=512k and sw=2? ...
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1answer
54 views

External Hard drive gets slow while copying lots of data

I have an external 5T drive where I want to copy my files (about 22GB). When copying the files everything runs well for a while and then it gets really slow (maybe because of the file size?): If I ...
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0answers
74 views

Xubuntu 15.04 Live SD card on Atom N270-powered netbook: How do I improve boot time?

I know using Xubuntu in Live mode can be slow, even with persistent drive space. I was given a netbook whose SATA connector is not working. It's a bit expensive to repair it so I'm using Xubuntu ...
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0answers
44 views

Live USB Xubuntu unresponsive BUT Kali USB distro running ok, how to fix it?

update: today it turned unresponsive. I Can barely use it for more than typing text in a text editor. adjusted the title accordingly. I'm not going to be able to buy a hard drive until 10 days and I ...
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0answers
185 views

Low network speeds Ubuntu 14.04 RTL8191SU 0bda:8172

My wireless adapter Bus 006 Device 017: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter Output of lsmod Module Size Used by ctr 16384 ...
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2answers
220 views

Kernel generic vs low-latency vs Zen

I would like to move from Windows to Ubuntu 14 LTS and i would like to ask you which kernel should i use. I will be using PC for surfing, programming, livestreaming (twitch), recording videos on ...
0
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1answer
117 views

15.10 very slow during file operations, despite 16GB RAM good CPU and no apps running

Every time I move or extract a big file (example: 1GB), or when I delete a directory containing a lot of small files, Ubuntu becomes extremely slow: the mouse stops moving (or only moves after a ...
1
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1answer
76 views

Degrading streaming video performance (Google Chrome and 15.10)

I'm currently running Ubuntu 15.10 and the latest beta of Google Chrome 48.0.2564.48, and whenever I try and stream video through Chrome, performance drops off rapidly. I can start a video, but after ...
2
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1answer
129 views

Better nice: how can I pause a demanding process completely if the computer is unidle?

Some background jobs on my PC do heavy processing. Running them with maximum nice level still produces slow interactivity and annoys me. Is there a better way than maximum nice? As soon as I use the ...