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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1answer
77 views

What is throttling multithreaded performance? [duplicate]

I installed Ubuntu 12.04.5 (64 bit) on a Dell T5500 with two Xeon 5650 6-core processors specifically to run the free DCP-o-matic software (http://dcpomatic.com/). The same machine used all 24 virtual ...
0
votes
1answer
190 views

Which subdirectories of / should have compression disabled in btrfs root filesystem?

Imagine you set up your root filesystem to be btrfs with Ubuntu 14.10 defaults (one subvolume for / and one for /home) and you want to compress and deduplicate as much as possible. Which directories ...
0
votes
1answer
162 views

Opening programs very slow on Ubuntu 14.10

When I open any program for first time after boot on my Ubuntu 14.10 it takes 8 second and more ! i think i have powerfull laptop with Intel® Core™ i7-3630QM CPU @ 2.40GHz & nvidia gt630M & ...
0
votes
1answer
131 views

Accessing tty1 through 6 takes unreasonably long

When I try to switch from the X session (tty7), it takes very long. Once in tty1-6, going to tty1-7 is instant. It feels as if the time a tty7 -> ttyX switch takes was a function: tty7 -> ttyX ...
4
votes
2answers
2k views

Enable full performance on Sandy Bridge laptop

I have 2nd gen Intel i7 laptop. I use Thermald and tlp for managing battery life (they are great!). However, sometimes I don't care about noise and power consumption, and want the CPU to run at full ...
2
votes
2answers
4k views

Ubuntu is very slow when Intel SpeedStep is enabled (CPU is not used in full speed)

I have a Dell notebook with i7 processor and Ubuntu 14.10. When i disable SpeedStep in my BIOS my computer is very fast but the fan runs very often and the battery gets empty fast. When I activate ...
0
votes
1answer
537 views

How should I encrypt Ubuntu Server 14.04 with AES on RAID 10 and RAID 5?

After researching I've come to the conclusion that my set up is just not standard enough to have a direct answer floating about on the interwebs. My Hardware: i7 950 CPU 24 GB DDR3 7 2TB 7200 RPM ...
0
votes
1answer
181 views

After I installed UFW ssh login very slow

I'm wondering if I made a mistake or if this is the normal case. I turned off password based ssh login and changed it to RSA key exchange. After that I changed the ssh port and then I installed UFW. I ...
0
votes
1answer
36 views

New member with performance question [duplicate]

Just loaded Ubuntu on an older PC and it seems to be running very slow and “choppy”. I am running ubuntu 14.04 LTS on my 2003 Compaq Presario S4000NX. RAM = 993MB Processor = Intel Celeron ...
1
vote
0answers
286 views

Critical random slowdown issue using KVM/QEMU

I'm having a critical issue with KVM/QEMU which is severely impacting one of my projects and I don't know where to put my hands. I've set up a brand new physical server configured with a 2 x Intel ...
0
votes
1answer
24 views

which version on older laptop? [duplicate]

my 5 yo acer laptop came with windows vista which was just ok. I loaded win7 and it is now extremely sluggish. I'm going to wipe it completely and install an older ubuntu version* I need it for ...
1
vote
4answers
469 views

Can I get a 100% dedicated CPU to my critical process?

I am looking for a way to get a consistent time measurement (<1% difference between the different runs) for my program under Ubuntu 14.04. perf stat shows that I still get quite a few context ...
1
vote
1answer
268 views

Upstart vs Systemd Performance

Has anyone measured difference in performance between these 2 systems on Ubuntu? Systemd is coming, and it has it's merits, but I fear Upstart will be tough to beat on Ubuntu, since it had years of ...
4
votes
1answer
1k views

Ubuntu Gaming Question - Poor Performance

So this is sort of a hardware question relating to the performance of games on my laptop. I am trying to play Counter Strike: Global Offensive (Click here for required hardware), and am facing sever ...
0
votes
1answer
146 views

How to check if SSHD works? [duplicate]

I have a Laptop with an 500 GB SSHD and running Ubuntu on it. A friend of mine told me he is not sure if Ubuntu is even capable of taking advantage in terms of performance of this technology. So my ...
1
vote
2answers
971 views

Terrible performance in desktop at 4K

i'm running ubuntu 14.04, is it a known problem to have bad performance compared to windows? This is my setup: 2x nvidia gtx970 intel i7 5820K monitor: Samsung U28D590 nvidia drivers: 343.22 one ...
4
votes
1answer
497 views

How can I make perf script -g python work?

After installing perf with the linux-tools-common package, I still can't use the python/perl scripting abilities. $ sudo perf script -g python Python scripting not supported. Install libpython and ...
0
votes
1answer
251 views

How to check file-level write performance?

In a very similar question, the accepted answer suggests to do: dd if=/dev/zero of=/tmp/output bs=8k count=10k; to measure the write speed of a hard disk. My tests were inconclusive. I have an ...
0
votes
1answer
371 views

Photoshop CS6 on Wine Performance Improvement

So I'm running Photoshop CS6 on Wine on Ubuntu 14xx. My issue is once I get deeper into work (fairly large images), the performance drops...a lot. When I ran Photoshop on Windows using the same PC, I ...
1
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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 ...
3
votes
1answer
2k views

VMware Player 7 performance on Ubuntu 14.0.4

My dual-boot laptop (Windows 8.1 + Ubuntu 14.04) I installed, on both Windows and Ubuntu, VMware Player 7.0.0. In other words: Same exact hardware (16GB RAM!) Same VMware Player version (7.0.0) ...
-1
votes
1answer
462 views

ubuntu 14.04 server memory problems

I'm getting this weird memory problem that causes massive slow down on any programs but doesnt want to go away till reboot. so when i do htop the memory usage shows half my ram is used but if i do ...
-1
votes
1answer
100 views

apt-get update starts 'by itself' and never stops running

I noticed my laptop becomes really slow from time to time. I think, but I'm not 100% sure, that this only happens after i plug the power in, and it started happening several days ago. Then I also ...
1
vote
1answer
136 views

Logical sector size for physical sector size of 4096

With many new hard drive disks the physical sector size is 4096. Would it be possible to make the system use a logical sector size of the same size, rather than the default logical sector size of ...
2
votes
2answers
152 views

Which parts of Ubuntu would you place on SSD and not HDD? (to leverage better system responsiveness without excessive write cycles to the SSD)

Which parts of Ubuntu would you offload from an SSD installed system to HDD or vice versa, to reduce write cycles and still enjoy better responsiveness? I assume the following, but must be missing ...
0
votes
2answers
179 views

Any benefit installing ubuntu desktop on SSD [closed]

For a large memory (lots of RAM) Ubuntu desktop machine, is there any upside to installing Ubuntu on SSD ? wouldn't everything be loaded to memory right after boot anyway, making it just superfluous? ...
0
votes
1answer
571 views

Cannot play media on Acer Aspire One AO751h

I am having problems with playing media on my Acer Aspire One AO751h on Linux. All media is laggy and jumpy, even MP3s and XVid-encoded video. I know that the laptop IS capable of at least playing ...
1
vote
0answers
71 views

Harddisk operations totally brings down my system respond time to its knees

I have massive system slowdowns during harddisk operations on my PC. My Firefox is responding slow, it gets to a extreme at times that it actually becomes a not responding program and greys out during ...
1
vote
5answers
991 views

Ubuntu runs super slow [duplicate]

I have an Acer Aspire computer that contains: Intel Atom CPU 1.33 GHz x 2 2.0 GB RAM Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits) Disk 243.9 GB I thought that Ubuntu would run faster than Windows ...
0
votes
1answer
112 views

Are proprietary drivers better for battery life?

I have an Intel HD 4400 onboard video card. I was pondering getting the properitary linux drivers from Intel. Will this increase battery life and performance? Does this apply to other components as ...
0
votes
1answer
85 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 ...
4
votes
1answer
2k views

Incredibly bad M.2 SSD performance (HP OMEN with Samsung XP941)

I have a new laptop (HP Omen) and have just, after great trials and tribulations, installed Kubuntu on it. The install is a dualboot install along with the factory Win8.1 installation using EFI mode. ...
0
votes
1answer
47 views

Install Ubuntu on an external hard drive

If I install Ubuntu on an external hard drive USB 3.0 is it gonna be slow to work on and do some gaming (Metro, borderlands etc.)?
0
votes
1answer
174 views

Is it usable to install ubuntu over laptop Dell Latitude E5420 already installed with Windows 8.1? [duplicate]

I am using Windows 8.1 on Dell Latitude E5420 and I am interested to give a try to Ubuntu. So to use Ubuntu efficiently, whether would I need to remove Windows and then install Ubuntu or can install ...
1
vote
2answers
398 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 ...
1
vote
2answers
29 views

Will only Xubuntu be faster than dualbooting with Windows 8?

I have installed Xubuntu alongside with Windows 8. I want to install Xubuntu again without Windows 8. Fresh installation, just Xubuntu. Will this increase this my performance?
1
vote
0answers
27 views

Ubuntu 14 Idle - Non Activity Causes Poor Performance

I'm having an issue with Ubuntu 14. I have a touch screen and I noticed after medium to long periods of inactivity the device "throttles down" and takes a few moments to snap back. When I tap the ...
0
votes
3answers
301 views

Reason for really slow 14.04 LTS performance

Ubuntu newbie/ computer novice with a question on performance. Downloaded Ubuntu 14.04 LTS from a purchased disk. The installation process went flawless. My problem is the OS is crawling (hovering the ...
2
votes
1answer
72 views

Oscillating disk performance

I recently upgraded my server from 12.04 LTS to 14.04 LTS. It used to run flawlessly for 2+ years, perfect in every way, but now I'm getting massive dropouts in the media streaming it provides. So ...
0
votes
1answer
2k 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 ...
0
votes
1answer
84 views

Ubuntu on Flash USB rather than SSD: performance penalty when not r/w-intense use?

I plan to turn my fanless HTPC completely silent, exchanging the current HDD for a silent runner. All I expect to do with the machine is to run a media client (XBMC), streaming my media via a network ...
1
vote
1answer
1k views

How can I reduce ram usage? And also how can I speed up Ubuntu 14.10?

I just upgraded to Ubuntu 14.10 from 14.04 to find the amount of ram usage has almost doubled well my CPU usage and almost been reduced. When doing little on my computer my ram usage stays at about ...
1
vote
0answers
260 views

Ubuntu 14.10: Extremely bad CPU Performance and heat

Ubuntu is running extremely slow due poor CPU performance, I have fairly good notebook (4GB ram 2.4Ghz Sandy Bridge CPU) and I know thats the cause is the p_state driver from Intel (the substitue of ...
1
vote
0answers
167 views

Benchmark phones using Ubuntu Touch?

I have a few used phones running identical fresh installs of the current Ubuntu Touch for Devices and want to benchmark their performance and attributes in the field such as: processor, battery ...
0
votes
1answer
3k views

AMD E1-6010 1.35GHz slow performance?

I have just installed the 64bit version of ubuntu 14.04.1 LTS version on my low-end laptop which has a AMD Dual-Core E1-6010 Accelerated Processor (1.35GHz, 1MB L2 Cache) and 4g of ram. Been switched ...
0
votes
1answer
578 views

Ubuntu 14.04 running slow on a 64 bit processor

I upgraded from win 8.1 64 bit to Ubuntu 14.04 64 bit version. My PC have 4 GB of ram and 2.23 GHz dual core processor... after installing Ubuntu its running slow.. should I switch to 32 bit or are ...
0
votes
1answer
76 views

What makes LiveCDs, LiveDVDs, and LiveUSBs slow?

Even on a rather good computer, booting from a LiveCDs or LiveDVDs is really slow, especially in the beginning before the operating system has completely loaded in. What is the major bottleneck in ...
2
votes
1answer
527 views

multi-core usage, biased towards core 2?

I have 4 cores in my system. Core 2 is frequently showing 100% usage in htop. Meanwhile Core 1,3,4 show something around 5% most of the time. Is this normal? Is there a way to better distribute Core ...
2
votes
4answers
289 views

Robot running Linux is slow to boot

I'm working with a robotic platform (for use in the RoboCup competition) and we run Ubuntu Server 13.10. It's critical during matches that our robots are able to boot as quickly as possible. What's ...
11
votes
2answers
4k views

Ubuntu Gnome 14.10 - desktop performance degraded when certain apps are running

I have upgraded from Ubuntu Gnome 14.04 to 14.10 yesterday using standard Software Updater GUI. The upgrade went smooth, however once upgrade was done I've noticed significant desktop performance ...