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
votes
3answers
2k 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 ...
2
votes
0answers
53 views

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

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?
7
votes
1answer
279 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 ...
5
votes
1answer
2k 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 ...
0
votes
1answer
1k views

TLP don't change CPU frequency

I check CPU clock speed with cat /proc/cpuinfo | grep "MHz", After sudo tlp start and sudo tlp bat still frequency is 2100MHz (Maximum). Could you please help me to solve this problem? I'm using ...
1
vote
0answers
124 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
0answers
38 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 ...
3
votes
3answers
9k 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
21 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
2answers
84 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 ...
1
vote
2answers
319 views

Change Frequency But nothing different

My problem here: root@LeAn:~/Desktop# sh MinPower.sh CPU MHz: 1200.000 root@LeAn:~/Desktop# lscpu | grep MHz CPU MHz: 1200.000 root@LeAn:~/Desktop# python TestCpu.py ...
15
votes
3answers
7k 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 ...
6
votes
3answers
6k views

Firefox use lot of cpu

I have a notebook nb510 Toshiba with Ubuntu 12.04 and firefox 22.0 with extensions like addock-plus, x-notifier, download helper, xmarks. Sometimes it's take more cpu than 100% This information of ...
11
votes
4answers
6k views

Is there a tool to measure speed of your pc/laptop?

In Windows 7 there is a tool that calculates some kind of index of your machine: the performance index. I am not sure how it is done, but it is nice to know, to be able to compare machines. Does ...
2
votes
1answer
118 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 ...
0
votes
0answers
39 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 ...
0
votes
0answers
45 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 ...
1
vote
0answers
54 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 ...
-3
votes
1answer
62 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
2answers
138 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 ...
6
votes
3answers
1k views

Slow installation of applications in Ubuntu Software Center?

I have installed Ubuntu 11.04 desktop and I am in the process of learning. I want to install some applications from the Ubuntu Software Center, but the installation process is quite long and slow. ...
1
vote
1answer
2k 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
80 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 ...
278
votes
40answers
239k 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 ...
26
votes
5answers
61k 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
1answer
58 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
105 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 ...
0
votes
1answer
75 views

Slow performance on good hardware? 12.04

I am experiencing slow performance on good hardware, here are my specs: Ubuntu 14.04 LTS Memory: 8 GiG (7.7 Usable) Processor: IntelCore i5-3210M CPU @ 2.50GHz x 4 Graphics: Intel Ivybridge Mobile OS ...
3
votes
2answers
58 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 ...
1
vote
0answers
104 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 ...
2
votes
1answer
64 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 ...
0
votes
0answers
130 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
71 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 ...
2
votes
2answers
149 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
2answers
2k 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 ...
0
votes
0answers
280 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 ...
1
vote
1answer
300 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 ...
0
votes
0answers
52 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 ...
8
votes
4answers
3k views

Upgraded to Ubuntu 14.10 and *everything* lags

Yesterday, I upgraded my Lenovo Thinkpad X1 Carbon (2013) from Ubuntu 14.04 to Ubuntu 14.10. Since then, everything lags, from applications when opened (or 'drawn back in the background' for an ...
1
vote
2answers
1k views

InkScape starts extremely slow

InkScape starts extremely slow on a powerful machine (16GB RAM, Intel Core i7, SSD). I did: $ inkscape After 8 seconds the window appears. This happens every time I start inkscape. Is this a ...
1
vote
1answer
180 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 ...
7
votes
2answers
2k 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, ...
4
votes
2answers
153 views

How to find the maximum data transfer rate possible from the RAM of my laptop

How to find the maximum data transfer rate possible from the RAM of my laptop. I am using Ubuntu 14.04.
6
votes
3answers
3k views

What SSD optimization are needed on latest Ubuntu version?

I have read of a lot of questions about SSD optimization (How do I optimize the OS for SSDs?, Installing Ubuntu on a SSD, I'm confused about SSD optimization, etc...). Most of those questions seem ...
1
vote
1answer
130 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 ...
18
votes
4answers
2k views

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

After a reboot, the first search using 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 ...
1
vote
1answer
1k views

How to take advantage of paravirtualization in an Ubuntu 14.04 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 O/S and configuration. The host has an AMD A10-7800 CPU. If I enable the KVM ...
7
votes
2answers
8k 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 ...
0
votes
0answers
83 views

Kubuntu 15.04: Random lag spikes in all games

A couple days back, every game (Minecraft, TF2, GMod,...) I played on my laptop had unbelievable FPS drops for ~5 seconds to 1 FPS and then it went back to 30. I noticed when the FPS dropped the ...
0
votes
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 ...