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
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118 views

Does enabling ACLs have an effect on performance?

I'm looking at a web application that needs ACLs enabled. Are there any benchmarks or other documents to show what potential impact ACL does{n't} have when the file system is under heavy load? Also, ...
3
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0answers
469 views

Slow loading of pages (browser performance)

I have Ubuntu 12.10 installed. I notice for certain webpages, firefox and chrome both load them very slowly. In fact, while text content loads quickly, both of the browsers seem to be loading ...
2
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0answers
561 views

SD card write speed not as advertised, on 14.04 at least

I bought a new SD card and the claimed performance is a long way from my benchmark. Is there something I can do improve the transfer speed when working with this SD card? Information on the disk: $ ...
2
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0answers
199 views

12.04 to 14.04 update slows down the system

I recently updated from 12.04 to 14.04 LTS. But the system is very slow. Everything works, but slowly. What could be the reason?. I have 4GB RAM, 10GB swap space and 300 GB of hard disk. Also the ...
2
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0answers
158 views

full disc encryption with SSD

I'm about to reinstall Ubuntu onto my laptop. If I use full encryption, which I desire, how will this impact performance of the SSD and FSTRIM? Will I still be able to use it or will it be ...
2
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0answers
234 views

Poor Gaming Performance in ubuntu

I'm seeing a problem in Ubuntu 12.04 and later. When I boot into a video game like Half Life 2, I get massive lag (FPS drops) and my CPU runs at 100%. My system even lags for games like SuperTuxCart ...
2
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0answers
156 views

System very slow except while running Smartmontools selftest

I am quite new to Ubuntu. I have a L430 Lenovo with i5-3210M CPU @ 2.50GHz × 4 , 4GB Ram, dual boot with Windows 7. HDD 500 GB TOSHIBA MK5061GSY. Every 10/15 seconds the HDD light turns on for 2-3 ...
2
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0answers
202 views

Slow performance while copying large files to external peripherals

Since I upgraded to Ubuntu 12.10, I have been having many problems with External Storage devices like Hard Disk and pen drives. Sometimes, my external HDD (WD Passport 500 GB) is not detected at ...
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477 views

Hard Drive too slow

My computer has been going too slow since I remember, I tried several tips I found on Internet but nothing worked. After spending some time searching about the problem I found that it might be my hard ...
2
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0answers
291 views

ubuntu 12.10 64-bit consuming 100% cpu power and high battery

I am new linux user, installed ubuntu 12.10 (64-bit) from wubi (getting boot option (windows7/ubuntu). But after opening ubuntu, laptop gets heat up, fan running very fast and performance is very ...
2
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0answers
148 views

What does this fix for non-responsive mouse and keyboard do?

I'm using Ubuntu 12.10 and found that after about 20 minutes of work that my mouse and keyboard became very unresponsive. So I found the following fix (logging in as root - careful!!!): sudo -i To ...
2
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0answers
220 views

Minecraft runs really weird in Ubuntu 12.10

When I have Vsync on my framerate is capped to 30 instead of 60. Also, when I go fullscreen the mouse seems to have really fast acceleration and the game looks really jumpy. I could run this on ...
2
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0answers
295 views

How do I speed up initial login?

The initial login on my Ubuntu 12.04 machine can take anywhere from 45 seconds to two minutes. If I log out, then log back in again, the login time takes between 4 and 7 seconds. How can I find out ...
2
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0answers
137 views

What flags can I add or are added when loading the kernel to enhance Sandy/Ivy Bridge performance

Are there any flags in Ubuntu 12.04 that I can add or are added already that when loading the kernel it enhances the performance of Sandy or Ivy Bridge hardware? In my case my motherboard is the ...
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0answers
8 views

Slow raid5 resync with WD Green drives

The Question Why is my initial resync so slow? Initially cat /proc/mdstat reported ~ 30000K/sec. I then increased /sys/block/md0/md/stripe_cache_size from 256 to 16384. That increased the speed to ...
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0answers
29 views

Why is my system unbearably slow?

I have a Thinkpad Edge E430, Core i5 dual core, 4GB RAM, Ubuntu 14.04 64-bit. It is pretty common for my system to freeze in such a way that the mouse cursor still reacts, slowly, lagging - but ...
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0answers
65 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, ...
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0answers
73 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 ...
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0answers
39 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 ...
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0answers
17 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 ...
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0answers
212 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 ...
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70 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 ...
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0answers
105 views

Ubuntu 14.04 64bit Slow performance

I am using ubuntu 14.04 64bit version in my following configuration system. CPU - Intel i3 3.30 Motherboard - Intel DH61BF Ram - 4GB DDR3 Hard disk - 250GB sata When i was using Ubuntu 13.04 32bit ...
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0answers
55 views

Shutter very slow and laggy?

Shutter is very slow and laggy and I'm not sure why. I've tried to change settings to "Do not save file automatically" and "Do not copy anything to clipboard" but it's still incredibly slow. I have it ...
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0answers
68 views

CPU usage varies from 0 to 100. Strange waveform

so I have a strange problem. I'm currently using an old Thinkpad T61 and Ubuntu 14.04 LTS, although this same problem was also happening when I had elementary OS Luna (based on ubuntu 12.04 LTS) ...
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0answers
325 views

Ubuntu Hangs a lot even when 3 or 4 apps are working

I have a Samsung NP300E5C-A0CIN Laptop with 2 GB of ram, intel i3 processor. I have installed ubuntu 14.04 alongside windows 8.1 My laptop tends to hang a lot, especially while browsing the web both ...
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0answers
114 views

Solved: 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 ...
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0answers
24 views

Total system failure on ubuntu 14.04

I have a Lenovo ThinkCentre that just had Ubuntu 14.04 installed on it. I installed restricted extras, attempted to turn on the firewall in the terminal, and made a few extra tweaks. Now there is a ...
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0answers
560 views

Radeon R7 M260 & Proprietary Drivers: Bad Performance

I recently bought a Dell Inspiron 5547 laptop and installed Ubuntu 14.04 on it. Almost everything worked great out of the box. This laptop comes with two graphic cards, an Intel HD Graphics 4400 and ...
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0answers
95 views

Problems with external harddrive (USB 2.0)

I recently installed Ubuntu 14.04. LTS on a Compaq Presario CQ 60. After having a few problems, I managed it to run more or less stable (freaking Nvidia problems are more or less resolved by using ...
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0answers
339 views

Ubuntu 14.04: very slow response from a 64 bit fresh install on 4 core server

I did a fresh install of Ubuntu 14.04 desktop version (64 bit) on the Dell quad-core (2.3 Ghz) AMD64 server with 8 GB of memory. The graphics card is NVIDIA CK8-04 Pro (System details says ...
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0answers
1k views

Very high IOWAIT times

I have a large system - 128GB, a couple of RAID0 filesystems (6TB and 2TB) with an SSD cache, 8 cores (16 with hyperthreading), running Ubuntu 12.04 64bit. When I try to write a large file I get very ...
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0answers
103 views

Former Windows XP systems are slow after installing 14.04

I just replaced windows XP on our work computer with Ubuntu 14.04 32-bit, and it runs really slowly, only after logging into an account and the screen sometimes flashes. It doesn't fill the whole ...
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0answers
252 views

“not authorized to perform operation” message in Xfce remote desktop

On ubuntu 14.04 i installed Xfce to maker remote desktop working. when i rdp to the machine and while performing some tasks like mounting removable usb media I get "not authorized to perform ...
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0answers
60 views

How to fix System Settings window lag

I wanted to open System Settings window and I waited ~30s. Then the window was opened. My machine has an Intel Core i7 processor and 16GB RAM. What produces a lag in opening System Settings? How can ...
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0answers
83 views

RAID6 Ubuntu rebuild - how to calculate best parameters for fastest rebuild

I am doing a resync on a RAID6 array and I am looking at some 2 days to complete. I looked here for hints on how to speed it up, but I have, instead, managed to slow it down! HW details are: 10x 4TB ...
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0answers
45 views

Basics about Nvidia GPU and graphics performance

Well, I'm new in this OS, and I already love it. Before I had Win7 but I'm not coming back. I installed it yesterday in my laptop, a HP Pavilion dv4-1528la with a GPU Nvidia GeForce 105M. Installed ...
1
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0answers
89 views

Window manager affects 3d performance - how to work around it?

I learned the hard way that enabling compositing VM will affect 3d performance. What can I do today to be able play games on linux with no performance penalty? I guess I could create user with ...
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0answers
82 views

Gnome3 runs faster when running game

I'm having a bizarre, and kind of funny, "problem"(if you can call it such). Ordinarily, Gnome shell is quite choppy on my system. Sure, it's smooth "enough" and fast "enough" but it most certainly ...
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0answers
460 views

My Laptop is running very slow when I installed ubuntu

I recently installed Ubuntu on my laptop, I have a pretty decent configuration that supports windows 8 very fluently but Ubuntu lags a lot while operating. This is my Laptop's configuration: ...
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0answers
2k views

GeForce 8600M GT: Nouveau performance better than proprietary driver?

After installing Ubuntu 12.10 on this computer, I installed NVIDIA's proprietary driver, since I might want to play a few games. I soon started having problems with video and audio. I'd be watching a ...
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0answers
514 views

Openbox overhead is similar to that with gnome-panel

I just installed openbox via sudo apt-get install openbox. It already has obconf, btw. I noticed that when I logged into my openbox session instead of the one I usually use (gnome-panel and NOT ...
0
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0answers
9 views

Why interface lags a lot when writing to disk and try play games

Ubuntu 14.10 with open drivers (not tested with catalyst) lag when I write data to external USB disk. And if I run Team Fortress 2 the interface lag hard - some mouse movements ignored, keyboard ...
0
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0answers
21 views

Slow performance Xubuntu 14.04 - Radeon HD6950

Im having slow video performance on my i5 with 16gb of Ram with a Radeon HD6950. Just installed the xubuntu, updated the system and when i open for example the Firefox or chrome, the video appears to ...
0
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0answers
23 views

Ubuntu touch HTML5 performance

I made a simple cordova bootstrap HTML5 app and deployed it on a bq phone. When I open the top right page navigation menu it appears that the slide animation is very slow. The animation is rendered in ...
0
votes
0answers
36 views

How much use of swap space means that I should add more memory?

My system is slow and I am trying to figure out if I need more memory or a better system. I am using Ubuntu with 32 GB RAM. $ free total used free shared buffers ...
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0answers
13 views

Ubuntu Sometimes with slow graphics and locking

long time since I installed Ubuntu x64 on my machine (Del Inspiron 3421 with Intel graphics) always realized that the graphics were not working as well as they should, I used Ubuntu 4.12 LTS x64 and ...
0
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0answers
16 views

Allocate disk space to partitions in a fresh install

I'm planing to do a fresh xubuntu install and am wondering about how I would best partition my hard drives, which are as follows: SSD - 128 GB HDD - 2 TB Right now, running ubuntu, I have the ...
0
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0answers
23 views

Performance of KVM on 32 Bit Ubuntu compared to 64 Bit?

Due to hardware failure, I recently grabbed a harddisk out of an old 32 bit machine and plugged it into a new 64 bit system - powered on, everything good, services outage minimised. Now I am planning ...
0
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0answers
32 views

Severe lag in Ubuntu 14.10

I am currently having a serious problem in Ubuntu 14.10. This morning when I booted into my computer, The UI of Ubuntu started to give me some serious lag. Normally the OS is perfectly fine, but every ...