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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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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1answer
25 views

Automatic switching between performance and powersave mode on plugging in/out the power supply

Recently I've been trying to investigate why my laptop is so slow. I found out that it runs at ~600Mhz, regardless of the power supply being plugged in or not. Note that it's Intel i5-2540M nominally ...
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0answers
58 views

Why ubuntu runs so slow on my laptop? [duplicate]

I am running Ubuntu 15.04 but it is running very slow, a lot slower than windows 8.1. When I open a browser or file manager it takes 5-10 seconds before it opens, the system settings take 6 seconds to ...
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0answers
9 views

How do I use performance counters inside of the kernel? [closed]

I want to access performance counters inside the kernel. I found many ways to use performance counters in user space, but can you tell me some way to use those in kernel space. Please don't specify ...
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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 ...
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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 ...
1
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1answer
36 views

Lubuntu on ASUS 1215

I have a ASUS Eee PC 1215P netbook (Seashell series) and liked to migrate from it's original MS-Windows 7 to Ubuntu/Lubuntu. There are documents on Ubuntu official website website which certifies that ...
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0answers
18 views

Can I make my game run smooth by dual booting windows [closed]

When I had windows installed I could run CS:GO on my laptop with medium to low settings. And it ran fine. Now, with ubuntu it doesn't. Will it run fine again if I dual boot windows?
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2answers
39 views

cpu is always at high consumption 50% - 90%, what can be checked for solving?

My platform: Host: Ubuntu 14.04.2 Virtualbox ubuntu 14.10. The cpu of the client 14.10 is always reach at high consumption, although no app running. After a start up, I launch nothing, the cpu is ...
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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 ...
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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 ...
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1answer
77 views

Worse compiz performance in Ubuntu 14.04LTS

I know this question has been asked multiple times before, but they seem to be like 3-4 years old now and I could not find any associated with Ubuntu 14.04. Also, solutions mentioned there do not ...
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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 ...
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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 ...
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0answers
19 views

Why is Ubuntu so slow? (I'm a new user) [duplicate]

I am new to Linux. It seems to be that Ubuntu is much slower than other Windows OS. Please show me how I can improve my computer's performance. Thank you very much in advance. Theo
0
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1answer
20 views

Setting to High Performance

When I had Windows 8.1, there was a power option for "High Performance" which allowed higher performance at the cost of power supply. Is there a way to set my power option to "High Performance" on ...
0
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1answer
24 views

how to check if zfs is using the kernel module

I am having perfomance troubles (transfer rates only about 50MB/s using 6 2TB server hdds WDC WD2003FYYS, each doing app 150 MB/s) with my raidz and was hoping to increase it with the ZFS on Linux ...
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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
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 ...
2
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1answer
27 views

Any benefit to uninstalling unused applications?

I am a newcomer to Linux and after a few months of trying out different distros I have now settled on Ubuntu 14.10 on my aging HP TX2000 Notebook. One thing I am unsure of is if there is any benefit ...
0
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1answer
53 views

Speed up first launch time of some applications (in this case: filemanager, xfce panel addon)

I installed xubuntu-desktop on my Ubuntu 14.10 and now use its file manager Thunar and its panel addon application menu (link to its docs.xfce.org site). Both programs take extremely long to launch ...
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1answer
37 views

Recommanded step for Apache and mysql Performance tuning

I googling lots of sites and forums to solve issue but i didn't get result as my expectation. I installed successfully Ubuntu 14.04 LTS on ProLiant DL360 hardware with LAMP environment. Hardware ...
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1answer
42 views

Ubuntu performance drop

I upgraded to Ubuntu 14 and it seems im lagging. I started playing a 2d rpg game on steam and my whole pc is a bit sluggish. I read that I should use xubuntu or something. I'm on an intel HD processor ...
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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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1answer
51 views

What can I do to restore disk performance on slower Ubuntu VM

I have Ubuntu 12.04 (x86) running under VMware Workstation 10.0.5 on a Windows 7 x64 host. Disk access in this VM is noticeably slow - it takes ages just to start Firefox, for example, and the disk ...
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0answers
46 views

Extremely poor performance in Ubuntu Server 12.04.5 LTS

I am trying to host a Minecraft server in Ubuntu Server 12.04.5 LTS. For some reason, my computer responds extremely slowly to any executed command or process. When starting up, it can take anywhere ...
0
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1answer
37 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 ...
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0answers
29 views

Sandybridge irregular performance with GPU-intensive game

My laptop has a Sandybridge i3, specifically Intel® Core™ i3-2310M. The following condition occurs playing League of Legends using vanilla Wine from the PPA. I do not have a native game to compare, so ...
0
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1answer
37 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 ...
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1answer
52 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 & ...
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1answer
93 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 ...
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2answers
188 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 ...
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0answers
49 views

Samba performance on ubuntu server 14.10

I have a desktop machine with ubuntu server installed which I am converting to a docker repo + media server(using samba -no amahi/firefly etc bloatware). Earlier I was using windows 8.1 and while ...
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0answers
32 views

Graphics Performance

My system specifications are Intel Core i5 2500; NVIDIA GeForce 520GT and I am running Windows and Ubuntu 14.04 as dual-boot . I prefer to use Ubuntu, but the Gaming Performance (Minecraft) is better ...
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2answers
416 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 ...
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0answers
58 views

Java algorithm performance difference between Linux and Windows

We observe a very significant performance difference of an algorithm in java between Linux (ubuntu) and Windows. The difference is 3x-4x in favor of Windows. Test machine is i3770 quad core (8 logical ...
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0answers
62 views

Ubuntu 14.04.2 is acting really glitchy and frequently has severe lags and has graphical bugs

Programs will dim and not respond after a while. Opening programs make the screen bug out. Is there a way to fix this without having to reinstall from USB/CD.
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1answer
115 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 ...
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0answers
38 views

Slow Chromebook Acer C710-2847 after 14.04 LTS upgrade

My Acer C710-2847 laptop is slow after upgrading to 14.04 LTS. I tried to watch a movie downloaded on it and it was just like a "Slow Motion" movie while it was fine before upgrading. I also usually ...
0
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1answer
33 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 ...
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0answers
66 views

VMware Performance Problems

I've installed Ubuntu 14.04.1 as a virtual machine (VMWare Player 6.0.5 build- 2443746), and it's performing terribly. My host machine is a Core2Duo (E6550) @ 2.33Ghz<br/> 4Gb RAM<br/> ...
0
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1answer
32 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 ...
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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 ...
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
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4answers
122 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 ...
0
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1answer
124 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
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1answer
595 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
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1answer
40 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 ...
0
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2answers
281 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 ...