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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0
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0answers
70 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 ...
0
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2answers
55 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 ...
0
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0answers
21 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
votes
1answer
907 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, ...
1
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0answers
185 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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votes
2answers
108 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 ...
0
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0answers
87 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 ...
1
vote
1answer
1k 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 ...
0
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1answer
46 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 ...
0
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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 ...
0
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0answers
32 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? ...
0
votes
1answer
70 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 ...
0
votes
0answers
85 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 15....
0
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0answers
46 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 ...
1
vote
0answers
193 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 ...
0
votes
2answers
253 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
votes
1answer
122 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
vote
1answer
79 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
votes
1answer
132 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 ...
-3
votes
1answer
76 views

Ubuntu 15 is slower than 14 [duplicate]

Just installed Ubuntu 15. Completely deleted Ubuntu 14. However, running a 3GHz with 1 gigabyte of RAM, I'd think Ubuntu would 'fly'. Ubuntu 15 is much slower than Ubuntu 14 was and I wouldn't begin ...
1
vote
0answers
59 views

Restore boot parameters to default value

It feels like my system is getting slower and slower. I am using Ubuntu and my machine is an HP ProBook 450 i7 4x2.0GHz, 8GB RAM and an ordinary HDD. Still it takes ~2 minutes to boot, which in my ...
1
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2answers
612 views

Samsung SSD performance in Linux

I'm going to replace my HDD with a Samsung SSD 850 EVO. I've seen a software called Samsung Magician that only works in windows. Can I get the same performance on Linux than in Windows? Or is better ...
0
votes
1answer
5k views

Performance Ubuntu 14.04.3 LTS vs 15.10

I am running now on Windows 7, but i am thinking about going to Linux (Ubuntu), i have experiences only with debian (VPS) yet :) But i like Linux, so i would like to have Ubuntu as my primary desktop ...
0
votes
1answer
174 views

i5-6300HQ max CPU frequency set to 760 MHz in Ubuntu 15.04

I have a Dell Inspiron i7559 laptop with a Core i5-6300 HQ and an NVIDIA GTX960M GPU. I have installed Ubuntu 15.04 on it, and I've been noticing that the CPU performance is much slower than I ...
1
vote
1answer
87 views

Slow PC as I installed ubuntu 14.04

A week ago I installed Ubuntu 14.04 on my Toshiba Satellite with a QuadCore 2.4GHz and 8(!)GB Ram, Intel chip 4000 and Nvidia gt 640M which are both activated. Since I've done that my Laptop is just ...
6
votes
1answer
146 views

Got a new SSD, don't want to wear it out but I still want to use some of it to store data files together with the old HDD

I've bought a brand new 250GB Samsung 850 EVO for my laptop, that I want to use as primary storage device, together with the old - but still pretty functioning - 250GB 7500 RPM HDD that I put in the ...
3
votes
2answers
71 views

Will run Ubuntu only over terminal increase my computer performace?

I have this software that I need to run for a project I'm working on but it uses all my CPU and will take 10 days to finish. I want it to run faster so I can finish this earlier. My computer is ...
2
votes
1answer
95 views

What is the bottleneck in system performance?

System Configuration: Dell Inspiron N5010 - Intel Core i3 380M 2.53 GHz, 4 GB DDR3 RAM, 1 GB AMD RADEON Graphics, 500 GB SATA 5400rpm HDD, Ubuntu MATE 15.10 (this is supposedly lighter than the Ubuntu ...
1
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0answers
210 views

Ubuntu 15.10 64 is very slow on Four Core i7 16GB of Ram

I'm very new to Ubuntu. I came from a Macbook pro to a Dell Latitude E74400 i7 16Gb of ram. Ubuntu is terribly slow even if I reinstall it. It laggs when I work with it, opening multiple windows. ...
0
votes
0answers
101 views

Why my desktop Ubuntu system has lag when CPU is not full?

I have a desktop workstation installed with Ubuntu 14.04. It has i7-5820 CPU, 6 cores 12 threads. When I run my 10-threads code which takes up 80-90% CPU usage. (See monitoring statistics below). I ...
7
votes
1answer
348 views

System locks up when disk I/O is saturated

When I do a large file transfer from my external USB3 hard drive to my internal hard drive (or vice versa), be it via Nautilus or via terminal, Ubuntu (Unity) will almost completely lock up. Things ...
2
votes
2answers
337 views

Ubuntu extremely slow on high end PC

So I finally got to installing ubuntu on my PC at home. Installation went fine, smooth and all. When I finally rebooted into the OS everything was terribly slow. I started by installing the latest ...
2
votes
3answers
5k views

Poor IO performance - PCIe NVMe Samsung 950 pro

I just finished a hardware build expecting a big gain from the new NVMe drive. My prior performance was lower than expected (~3gb transferred), so I've replaced the motherboard/cpu/memory/hdd. While ...
0
votes
0answers
63 views

System performance drop when adding a second monitor (zbook - ATI)

i have been trying to find a solution for this but can't quite make sense of it. I have a Zbook14 with hybrid ATI/Intel graphics card (AMD Radeon R7 M260 Series). Everything works like a charm when ...
5
votes
3answers
126 views

If I compile Firefox instead of binary install it will work faster? [closed]

Many times I hear that software compiled at my hardware will work faster at my hardware. Can I win 10% of performance of Firefox or Chromium if compile from source?
1
vote
0answers
350 views

Gnome 3.18 Activities overview and application list very slow with Ubuntu 15.10

Ok, any help would be great: After updating to 15.10 and Gnome 3.18, the activities overview has become very unresponsive. Arranging windows from desktop to desktop is slow and when opening and ...
3
votes
1answer
5k views

How to take advantage of VirtualBox paravirtualization in an Ubuntu guest?

I have an Ubuntu 14.04.3 (with linux-generic-lts-vivid (3.19) kernel) 64-bit host, and a VirtualBox guest with the same OS and configuration. The host has an AMD A10-7800 CPU. If I enable the KVM ...
0
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0answers
14 views

starting apps from kde menu are delayed about 2 seconds?

I got an immediate start when I do run applications like dolphin from terminal but when I do click on them in KDE menu it takes about 2 seconds to fully run, I see the icon beside cursor bouncing ...
1
vote
0answers
175 views

Poor performance thinkpad E550

Hi I have just bought a lenovo thinkpad E550, and installed Ubuntu 14.04 onto it but I am running into major performance issues. Like 8 + seconds to launch any application from startup, Firefox runs ...
0
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0answers
34 views

Unable to install ATLAS even after disabling CPU throttling [duplicate]

I am trying to build a computational tool called SU2 from source on my Ubuntu 14.04.3 and it has many prerequisites, ATLAS being one of them. Being new to Ubuntu, I followed this guide for ...
0
votes
1answer
38 views

Obtaining better performance? [duplicate]

i'm a Lubuntu 14.04 user. I have some trouble about my CPU going to a high % usage while doing simple things like launching firefox. I would some advice if there is some fixing that I can do to ...
0
votes
0answers
31 views

Slow Perfomance overall

could anyone tell me how to improve my system performance? It is very slow and I do not know the purpose of it. One idea that comes to my head is that my laptop is quite old, but I can recall that a ...
0
votes
0answers
704 views

Very poor performance drivers for Intel® HD Graphics 4600

I am new to Ubuntu and Linux. I have a HP Envy 17'' laptop and it comes with an i7-4710HQ processor with integrated Intel® HD Graphics 4600. I have Ubuntu 15.04 installed and I also installed the ...
-3
votes
1answer
108 views

What the difference between performance the of Ubuntu 14.04 LTS and Windows 10? [closed]

I want to know the difference between performance of Ubuntu 14.04 LTS with Windows 10. Features like RAM, interact with hardware, CPU usage, shutdown delay... etc.
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0answers
110 views

Slow performance on HDD - need advice how to tune it!

I have a MyCloud with a 3TB harddrive. It's incredibly slow when transferring large files over the lan (files about 1gb, give or take a few MBs). I think it has to do with the read/write-speed of the ...
0
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0answers
155 views

Slower than advertised SSD performance

I've just assembled new machine: Asrock AM1H-ITX, AMD 5350 with AES-NI, 8GB RAM, Samsung 850 EVO 120GB SSD Elementary OS based on Ubuntu 14.04 Advertised read/write of the SSD is something around ...
1
vote
1answer
374 views

Docker performance on ubuntu host 2x+ worse than OSX host

Ok, let's start over after a bunch of investigation. Here is what we know: Ubuntu host 15.04 on i7 3820 (quad 3.6) and Samsung 850 pro SSD 512gb SATA 6 $ docker info Containers: 2 Images: 101 ...
1
vote
2answers
122 views

Ubuntu is very slow after a few years

I installed ubuntu a few years ago. In the first days it was very fast compared to windows. However it goes slower by time. It takes more than 1 minute to see the desktop. Chrome takes around 30 ...
0
votes
1answer
68 views

Long running kiosk application eats up memory without freeing it

I've a long running application built with PHP/HTML/CSS3/JS running on Chrome on a Ubuntu Server 14.04.03. I've set everything up to make it work and let it run for some days. I've noticed something ...
0
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0answers
99 views

Different performance of identical virtual machines

I have a desktop and a laptop both with i7, with 64-bit Win-7 OS. I installed VirtualBox with the same Ubuntu VM with exactly the same resources. I ran the same program into both VM's. The desktop is ...