Questions tagged [optimization]

Optimization is a very broad term referring to optimizing (either minimizing or maximizing) some aspect of a computer system's hardware usage (like the hard disk space used by the system, the CPU and RAM used while running, etc.) or performance or resource usage (like electrical requirements).

Filter by
Sorted by
Tagged with
1
vote
1answer
77 views

How to optimize SSD in ubuntu 16.04?

I have installed ubuntu 16.04 on my SSD(Adata Su650 240GB). I wanted to know if there are any tweaks that are needed to be done for the SSD to work properly and increase its lifespan. Note:- During ...
0
votes
0answers
123 views

Lag using Ubuntu Budgie 18.04 and a strange workaround

I was experiencing a lot of lag using my Ubuntu Budgie 18.04 these days. The lag appeared in all basic operations (ALT + TAB, worksapace changes, programs opening, etc), but mostly when I type. To get ...
0
votes
0answers
17 views

Push down network installation time - what are methods and the lower boundary?

What are possible optimization vectors to significantly reduce Ubuntu network installation time and what are lower boundaries to strive for? That is, I am starting with a qemu/virt-install ...
0
votes
0answers
71 views

Why is Wikipedia taking up so much RAM on Ubuntu (with Google Chrome) and how can I reduce it?

My laptop with 16GB of RAM keeps running out of RAM and the top 10 processes chewing up the RAM are always from Google Chrome tabs, some which are using 900MB of RAM: Opening Google Chrome's own task ...
1
vote
0answers
228 views

Optimization of Linux (Ubuntu) for RDP

I am building up a pool of virtual machines for remote access via RDP. Currently, I want to stay on Linux side and avoid the need for using any Windows machines. Therefore I tested the latest most ...
0
votes
0answers
2k views

Graphical performance improvement for Intel HD Graphics in 18.04

I own a Lenovo Yoga 710 laptop with Intel Core i5-7200U processor integrated Intel HD Graphics 620 (Kaby Lake GT2). The graphical performance in Ubuntu 18.04 running kernel 4.15.0-33 seems to be a ...
0
votes
1answer
360 views

How to speed up Docker under Ubuntu 16.04

I think my containers in the docker is too slow. Start of 8 containers takes about 10-15 mins. My colleagues use docker under Mac and for the same set of containers it takes a few minutes (2-3 mins) ...
0
votes
1answer
73 views

How can I identify what is causing my laptop to lag?

I got a HP dv7-1133cl with some terrible Windows issues (black screen shortly after starting) and so I installed Ubuntu 16.04 as a learning experience as well as to have my own personal laptop. It ...
1
vote
0answers
493 views

Ubuntu 16.04 a lot of kworker processes

I have an ubuntu 16.04 server with kernel 4.10.0-37-generic. It's metal server, not virtual. There are a number of kworker processes (about 109-115), every kworker consumes CPU (up to 4%). Also I ...
0
votes
0answers
401 views

System monitor squashfs full is it normal?

My computer gets very slow after hours of working on it. I am wondering if it's not related to this and how to fix it ? Screenshot below shows system monitor output System monitor showing 5 devices ...
1
vote
1answer
51 views

Explanation of a Ram Utilization script

As an answer to question Lots of ram. How to use it?, I saw this script. find /home/user/.config/ /home/user/.gconf/ /home/user/.mozilla/ /usr/share/icons/current_icon_theme/ /usr/share/nautilus/ /...
8
votes
3answers
1k 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?
3
votes
2answers
3k views

How can I reduce the size of a SVG using software on Ubuntu?

I would like to optimize a SVG using software on Ubuntu (and by optimize I mean to reduce the file size without loosing any visible parts of the graphic) and I do mean software I know there are some ...
4
votes
1answer
1k views

Sysvinit alternative of systemd-analyze and systemctl?

I am trying to tweak my system's start time. Usually I go about it by using systemd-analyze blame Which gives me a list of stuff and how long it takes them to start. For this machine I don't need ...
1
vote
0answers
51 views

A/B testing software

I am looking for A/B testing and optimization software for web-page development in ubuntu. Can I get some software recommendations?
0
votes
1answer
231 views

Steam game does not use all available CPU power

When I quit a Steam game today I noticed on CPU Usage Monitor widget graph that it did not run on 100% CPU load which came as a surprise considering that simply scrolling askubuntu.com in Firefox uses ...
0
votes
2answers
273 views

How to use my 6GB of free ram to optimize ubuntu12.04?

I also want to load faster on boot. If possible, can I shift all temp file hard disk operation to RAM?
5
votes
1answer
9k views

Find and disable unnecessary services in Ubuntu 12.04

I have been presented with a server running Ubuntu 12.04 LTS server edition. This machine was in use earlier for a web application and also has many other applications configured in it. Now, I want ...
0
votes
1answer
914 views

Optimizing Wi-Fi Connectivity

Hello and big thanks to everyone in the askubuntu community who has been more than helpful in the learning process of Linux. I'm Running ubuntu 12.04.3 on a hp g7 (dual booted with windows 7 ...
0
votes
2answers
4k views

How to optimize sata hard disk in ubuntu 12.04?

How to optimize sata hard disk - HDD (Not A SSD) in ubuntu 12.04 for better performance. Hard Disk ( HDD ): 500 GB - Not a SSD Ram: 4GB 1GB 1 GB Nvidia Graphic Card Intel Core i5 Second Generation ...
0
votes
1answer
989 views

Optimizing 12.04 LTS for Matlab R2013a

Good day I would like to know what steps could be taken to optimize Ubuntu 12.04 LTS for running Matlab R2013a (64bit). We have run the same test on the same machine with Windows 7, Windows 2008 ...
1
vote
0answers
22 views

Ubuntu splash Screen is now a gear and boot speed is slow [duplicate]

I installed lxde, gnome, and a whole bunch of other desktop environments the other day, and now while Ubuntu boots, the splash screen is now a gear on a gray background, and boot speeds have gone from ...
0
votes
1answer
73 views

Use wifi only when necessary

To optimise my laptops battery life I would like to make it so that wifi gets turned on only when there is a process running which needs a network access. For example when browser or transmission is ...
10
votes
3answers
1k views

My boot time has increased by 25% in the past two months. How do I reduce it?

I used to have a boot time of ~35 seconds till 2-3 months back. Now it is about ~50 seconds or more. Shut down time has also doubled. Before it used to be at most 5 seconds. Now it is at-least 10 ...
2
votes
3answers
772 views

What distro of ubuntu to choose when I focus on performance? kubuntu? [duplicate]

Possible Duplicate: Lighter in CPU/Memory Usage: Lubuntu or Xubuntu I do have an old laptop. it has 512mb of ram and weak processor. I would like to use it only for internet(www and email). ...
2
votes
1answer
9k views

Optimization: RAM cleaning and monitoring

Is there any good tools for ram cleaning-purging? I mean some daemon, that watch on RAM and trying to purge some, if it reached the limit? Thanks!
1
vote
1answer
7k views

What does it means: `cgroup_disable=memory` in my `dmesg`?

My dmesg command give me that result in particular: [0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups What does it meanings and how to know what I want around ...
11
votes
2answers
11k views

Investigate disk writes further to find out which process writes to my SSD

I try to minimize disk writes to my new SSD system drive. I'm stuck with iostat output: ~ > iostat -d 10 /dev/sdb Linux 2.6.32-44-generic (Pluto) 13.11.2012 _i686_ (2 CPU) Device: ...
1
vote
1answer
978 views

How can I get the best performance for playing games?

I've been playing a couple of Wine-games today and decided to switch to metacity to see what the performance difference was like. If you've never done it before, you just run metacity --replace but ...
3
votes
2answers
243 views

How do I tune WordPress to make my site more responsive?

I have a Linode that has Ubuntu loaded and am hosting a WordPress site. I would like to optimize my site so that I no longer get Out of Memory errors like the following: Killed process 16660 (...
2
votes
2answers
2k views

Slow for no apparent reason [closed]

Ubuntu is becoming slow for no apparent reason. I'd like some help with analysing and fixing this issue. Usually when a system slows down, that's because the software is using too much system ...
1
vote
2answers
2k views

Optimizing EXT4 performance

I'm using my machine to build stuff a lot and there's a specific directory that gets used very often. I've got 8GB of RAM, which is helpful for the build, but is far from enough to cache the whole ...
2
votes
4answers
7k views

Why is my fresh install of 12.04 running slow?

Hey guys I'm a new linux user, I figured it would be the best for the laptop I just purchased because it's said to be faster than Windows 7. I'm currently dual-booting with Windows 7 Professial and ...
0
votes
1answer
2k views

Can Ubuntu use a flash drive to increase performance like ReadyBoost? [duplicate]

Possible Duplicate: Is there any way that an external hard drive can be used to boost performance? This might be a silly question but is there any way to use a flash drive to optimize the memory ...
1
vote
1answer
2k views

Does using both tmpfs and zram make any sense?

I wondered if tmpfs and zram do negatively interfere with each other in any way? After what I've read about it I'm unsure whether there is a positive cumulative effect accomplishable with that ...
2
votes
2answers
1k views

What can I do to improve Ubuntu 10.10 performance on my netbook? [duplicate]

Possible Duplicate: How can I improve overall system performance? I am not new to Linux, but I've never really dug in and am much more proficient with Windows and Mac OS. I've used Ubuntu off ...
37
votes
3answers
24k views

Lowering Compiz memory usage

I have been following the updates that appear every week in how they affect the performance and resource usage of Compiz since I installed 11.10 (Right now I am testing 12.04 and 14.04). For what I ...
10
votes
1answer
3k views

Open Source command line tool for optimizing PDF

Are there any open-source command line tool for optimizing PDF in Ubuntu. I have used Ghost Script and i am able to convert the PDF into 72 dpi, gs -sDEVICE=pdfwrite \ -dCompatibilityLevel=1.4 \ ...
3
votes
3answers
533 views

Optimizing rarely used server installed in an always up virtual machine

I have a Ubuntu Server installation on VirtualBox since I am a Mac OS X user and I want to launch some Linux-dependent programs on Ubuntu rarely by connecting it via SSH. Therefore I want to make a ...
5
votes
1answer
1k views

Optimize bootup sequence

I'm on Ubuntu 11.04 (upgraded from 10.10) and suffering really high bootup times. It got so annoying, that I decided to dive into bootchart analysis myself. Therefore I installed bootchart and ...
22
votes
3answers
6k views

How can I queue file operations?

When I pick and choose files to copy to or from a single device, Nautilus accumulates file operations in parallel: I worry that in certain circumstances this could cause fragmentation of the ...
88
votes
6answers
147k views

How can I limit battery charging to 80% capacity?

I just learned that some Lenovo laptops include a utility that offers to limit battery charging capacity to within 0–80% in order to slow the attenuation of the battery lifespan: How can I do this in ...
1
vote
0answers
145 views

How can I improve my start-up time [duplicate]

Possible Duplicate: How to make Ubuntu boot fast? Hey, I've loaded Ubuntu on an older laptop and while it loads faster than Windows used to I'd like it to load even faster. Are there any ...
10
votes
6answers
49k views

How can I maximum compress video files?

I received 4 .mov files from a client that they want on their mobile website via SlideShowPro. Each original file was between 200 and 400 mb. I've gotten each one down to about 30 mb using ...
9
votes
3answers
4k views

Optimizing Boot-up

I installed bootchart to monitor my boot-up process. I had some problems with my booting time (>80sec) Before : http://i.stack.imgur.com/4tvky.png After some tweaking with Bum,Ubuntu-tweak and Start-...
3
votes
4answers
396 views

Execute a script when memory peaks?

I don't have a lot of memory and sometimes, when I play video games, its get full and my computer start freezing, anything I do take more than 1 minutes before getting done that include mouse move and ...
14
votes
2answers
1k views

Why is mainstream Ubuntu still i386-compiled?

I pretty much believe (am I wrong?) that over 90% (if not over 99.9%) of Ubuntu 10.x i386 installations are run on i686 computers. So why is Ubuntu still not i686-optimized? The only case I can ...