Ubuntu :: How To Improve System Performance
Jun 4, 2011
Basically I'm wondering if there is any way to lighten Gnome and Ubuntu I would like to keep Gnome if possible. I am a pretty experienced linux (or for you hardcore GNU fans GNU/Linux) user having used it for almost 4 years and I just built my Arch system but have found that alot of the functionality that I've come to love about ubuntu isn't in the default Gnome package but that Ubuntu's Gnome is heavily modified so I want to switch back but do to my lack of modern hardware I can't run Ubuntu as smoothly as I want.
Below is my current hardware.
Code:
Intel Pentium III 733mhz
512mb of ram
8gb Hard Drive
and a Dvd Drive
Nvidia Geforce 6600 265mb pci gpu
100 watt power supply
I am also a Developer so I know I can compile the Kernel my self and remove some not needed junk and optimize it. But I was wondering are there some Highly intensive processes that don't really need to be running? The only thing I would be using Ubuntu for is Web Browsing, Coding, Gimp, Text Processing and probably Music; thats really all I need I don't do much else besides that.
tl;dr:
Basically all I'm trying to do is lighten Ubuntu and Gnome without putting 3 days worth of work into it.
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Sep 1, 2011
I am running a ubuntu desktop machine as a server and use VNC from my windows machine to login via a LAN to the ubuntu machine. The login session is very sluggish and frustrating. I installed gnome-rdp to see if it would be better but I don't know how it works or what to do and if there is something else I can do to improve the performance. I have 3 gig of ram and the server is a dual celeron machine
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May 6, 2010
I have a Gateway Laptop which is dual-booting Windows XP SP3 32-bit and Ubuntu 10.04, also 32-bit. The 64-bit version, would not install on my computer, even though the computer has 64-bit capabilities. It doesn't bother me that I use the 32-bit version, but something it is now doing seems to be affecting the way things work on my laptop. The computer has 4GB of RAM in it, an AMD Turion 64 X2 processor, and an ATI Radeon X-series graphics card. The monitor has HDMI capabilities. On the Windows side, it handles full-screen programs and operates very quickly. On the Linux side, I can also run things quickly. However, most programs on the Linux side are much slower-running than they would be on the Windows side.
Something I notice when my laptop goes into fullscreen on the Linux side, is that the color quality goes way down. You can see that it is trying to run in apparently 256 colors, and each individual pixel is very visible. It does not do this on the Windows side. Also, programs that I run on this half of the computer are very laggy, slow, and inefficient. I know that my computer has the video and processing power to handle these programs with ease, but it isn't utilizing all of it. How can I make Ubuntu run at a higher speed overall, by taking advantage of all four gigs of RAM and this 2.4 GHz Turion processor to run everything like Windows does?
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Jul 9, 2010
I have got a Radeon X800XL built in my computer. I was able to play Quake 4 in high details once, so I guess my PC is quite fast. Anyway, I have trouble playing Anno 1503 and SuperTuxKart (sic!). While Anno 1503 is fairly unplayable, SuperTuxKart has got around 30 to 90 fps, depending on the situation. In my opinion, that's way to less.
My question is: How could I improve the 3d performance, to be able to play such legacy games as Anno 1503? Therefor I'll give you some information about my configuration and what I tried so far.
I run Ubuntu 10.04. That means, the driver provided by AMD/ATI (fglrx) does not work anymore. My Ubuntu is up to date.
I set the kind of graphics card and the graphics ram in the Registry of Wine. Disabling the compiz-fusion-effects does not improve the situation however.
I disabled KMS. That gave an amazing performance boost, but still not enough. I am still experiencing performance troubles like being unable to play Anno 1503, and some others.
I also created a Xorg.conf, trying to tweak some settings, but that does not improve the performance much. The config file is attached below.
How to improve or accelerate the 3d-performance. Maybe there is an beta-driver or some xorg-settings I did not find?
Kernel:
Code:
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Feb 15, 2011
I have written a script as follows which is taking lot of time in executing/searching only 3500 records taken as input from one file in log file of 12 GB Approximately. Working of script is read the csv file as an input having 2 arguments which are transaction_id,mobile_number and search the log file having these two strings with one more static string that is "CustomCDRInterceptor",then format the searched data in prescribed format.
Code of script written is as follows:
Code:
Sample data of input file will be like :
Code:
Sample Data in log file is as follows:
Code:
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Jan 2, 2010
I'm trying to do a partition alignment on my main SSD to improve SSD performance and then install Ubuntu on the SSD. I can do the alignment with no problem but when I install ubuntu the alignment is erased. Is there a way to install ubuntu without getting rid of the alignment?
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Feb 26, 2010
dns cache serThis is probably more of a network question but I figured some one who is a network expert might know. Currently my organization has DNS servers. But my questions is would setting up a cache server improve the performance any? When I first thought about it i thought probably not. But since it stores information in ram that made me think maybe it would improve network performance a little.
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Mar 12, 2011
Does anybody know more tips and tricks to increase visual performance besides these?:
Got it from:[url]
The first made minimizing windows a lot quicker.
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May 10, 2011
I was using centos for my business applications and now I am trying to work only with opensuse and install my other oprerating systems in it. I was always using vmware , but I decided to try another virtualization technologies other than vmware for testing , I searched the internet and found many other like virtualbox , kvm , xen. I concluded from my search that xen and kvm will be the faster type , I decided to test them, I choose xen, it is better than kvm. I installed opensuse 11.4 and installed xen hypervisor deployed two VMs windows xp and centos 4.8 , they are runing quite good but I have some questions:
1 : Isn't there anyway to improve graphics performance in xen guest , or change the video card memory or type ?
2 : Isn't there any way to copy and paste between the host and guest ?
3 : Isn't there any free application like vmware tools or virtualbox guest tools for xen ?
4 : I use these VMs to install some applications for my geophysics work which requires good graphic performance in the vm , also I don't them to be sluggish sometimes , which is better for that vmware or xen ?
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Mar 18, 2011
I'm using mplayer and libcaca on Gentoo. My framebuffer (uvesafb) is running at 1920x1200 (I don't know how many characters that is) and mplayer has problems filling up the screen, so video and audio lose synchronization.
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May 18, 2011
So I have built a program that takes a picture from two cameras every second and converts them both to jpeg format. The problem is that currently it takes ~2 seconds to convert a single raw photo to jpeg format, thus every second I add another raw photo (30 MB) to ram waiting to be converted to jpeg. So, theoretically the conversion to jpeg is running on a single core with hyperthreading, would I see better performance running the exact same process (a program pulling from a queue and converting to jpeg) running as a single process, or two concurrent processes? (both processes running on the same core, (so 1 thread on one clock cycle, the other on the other... (or one thread running on 1 core and the other on another core. What other steps would you take to improve the performance so there would no longer be a race condition?
-Currently using QT
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Nov 12, 2009
I just want to know if a linux server got rebooted after a scheduled time(2/3 month), whether the performance improves. If improves why.
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Mar 6, 2011
I have an older PC running Ubuntu 10.04, and the system is slow, especially with Firefox running. I recently upgraded to 2 gig memory, but it didn't help. I have plenty of space on my hard-drive, using only 30 gig of 80 gig. My CPU is Intel Celeron 2.40GHz. I have broadband, and the speed seems good. What are the system requirements for Ubuntu 10.04? Any tips for speeding performance, esp on Firefox? I used to do a defrag when I had Windows; is there any need to do that on Ubuntu also?
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Sep 14, 2015
I install KDM cause I couldn't run fglrx on GDM since i install the drivers of my GPU and the KDM ... I am suffering from poor system performance youtube videos mostly HD run very laggy and overall performance decreased ...
I run lxde ....
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Jul 16, 2011
I am running the newest linux (ubunbtu 11.04) on an old laptop (2.3 Ghz celeron, 760 mb ram, bios is the latest version). I don't expect it to perform well, it's not a fast processor.But.....it performs so poorly with linux...and I am beginning to wonder whether the machine is broken or malfunctioning. The processor utilization seems high at all times, but I am not sure what is normal/typical.Which of the many benchmark software packages should I use in order to quantify it's performance (or lack there of)? Are there web resources that will list benchmark values of various machines, so I can determine if my punch box is broken or whether it's just slightly slower than other similar machines?
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Jul 31, 2010
I just wanted to know if having my laptop set to ondemand, will this affect performance in any way? I realize it increases the clock speed to performance when the CPU is under load, but does the time it take to go from ondemand to performance affect speed? Will there be any noticeable difference between the two setups? I have a dual core intel at 2.2GHz when in performance. When ondemand is set with no load it downclocks to 800Mhz.
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Jul 11, 2010
I attended many interviews for Linux Admin post. Most of them asked me a common question 'How do you handle System Performance Issues' on a Linux Server. Now how do I answer this?
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Apr 13, 2010
I need evaluate the ext3 file system performance; i need define:
- services provided
- parameters and
- the performance with different parameter values; for example, changin the value of the "data" parameter (journal, ordered, writeback).
I do not know what services ext3 provides. Well, i know intuitively that it provides services to read, write and erase files. But, there are anything more?. Where can i find the API?. Is the ext3 file system POSIX compliant?
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Aug 12, 2010
I have doubts regarding storage:
How to configure the Events of Storage Processor?
What are performance issues will come daily in a critical production server?
What are first steps for disk performance Check?
What are first steps for Storage Processor performance Check?
What are first steps for MetaLUN performance Check?
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Jun 3, 2010
Is there a terminal command to monitor CPU and/or RAM usage?
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Mar 30, 2011
Last I upgraded one of our cent 5 boxes which is running kvm with a mix of centos and windows VMs.After the update performance just tanked on the XP guest, but the others (including other windows VMs) are just fine.I checked with our good friend google and didn't really get any help there.We're hoping to NOT have to rebuild the XP guest, so I thought I'd check in here first.
This is CentOS release 5.5 (Final) with kernel
2.6.18-194.32.1.el5 #1 SMP (64bit)
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Feb 25, 2009
I have a weird performance issue with a centos 5 running a nfs server and a rh8 client. I think the fact that it is rh8 client should be downplayed. It is just that with rh8 client the performance degradation seems more clear. See test details below OS in server is Centos 5 x86_64 kernel 2.6.18-92.1.22.el5
1Gb connection between machines File to test over NFS is a 1GB file. First of all I wanted to measure how the network alone performs while using NFS. So in the server side I run a "cat" command on the 1GB file to /dev/null. Please note that the disk read speed is about 98MBs. At this point the file system has the 1GB file cached in memory. In the client side a "cat" on the same file gives me a speed of about 113MBs. It seems then that the bottleneck in this instance is the network and it is very close to nominal speed. So the network performance is really good. (BTW I know that the server got that file from cache because a vmstat or iostat shows no disk activity.)
The second test is reading from disk with no caching involve. In the server I flushed the 1GB file from the memory. For instance by reading another 5GB file and I repeat the same thing as above in the client (a cat on the 1GB file). Now, the server has to go to disk.(vmstat or iostat shows the disk activity). However the performance, now, is about 20MBs, I was expecting something closer so 90MBs. (since the reading speed in the server in the first test showed 98MBs).
This second test was repeated for ext2, ext3, xfs with no significant differences. A similar test using a RH8 NFS server and client gets me close to 60MBs for a 1GB file not cache by the file system in the serverSince network speeds and disk read speeds are not the bottlenecks ... what or where is the limiting factor then?
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Aug 19, 2010
I installed bootchart and had my boot times analysed. Unfortunately, I can't make head or tail of the resulting PNG file. Could someone take a look at and tell me what I should do to decrease boot time?
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Nov 2, 2010
Wondering if i improve my memory footprint
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Feb 7, 2010
I've got Ubuntu 9.10 running on an old thinkpad with an 800 mhz cpu. It's running wifi through a g rated card and a g rated router. The internet is very slow. I'm thinking of upgrading to an n rated card and router. Or, is the system just too old and nothing is going to help with internet speeds?
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Jul 13, 2010
I have Ubuntu 10.04 installed and although I had some problems initially, everything works fine now. I'm just bragging about that. I do have some strange "issues" with my boot. I know that Ubuntu is supposed to boot with only plymouth visible, but before I see plymouth I have a fairly long period of time when I see nothing but a console cursor (a.k.a. caret) blinking. I'm no expert in reading bootchart charts, so I'm attaching it for some feedback. I have no idea how and what to optimize.
My boot is ~40 secs as noted on the bootchart, but it would be nice to cut some fat if possible. Also, my StartUp-Manager is displaying some veeery long boot options. It doesn't look nice. I guess he's reading /boot/grub/grub.cfg but I don't think I'm supposed to see all that. my boot and shutdown screens are very low res and very ugly, often flickering on updates. I have 10.04 setup at work as a web test platform on a very old/crappy PC (Intel GFX) and bootsplash looks much nicer than on my home laptop.
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Jul 25, 2010
The hardware devices drivers list three different types of drivers onboard including what appears to be the latest one with accelerated graphics capability. When I try to improve the visual effects to 'extra' it keeps telling me there's an error. I've tried improving the effects with all three but still getting the error.
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Nov 2, 2010
I have a old Pentium III box with equally old monitor (It says LG Sutdioworks 45v).I have installed Ubuntu 10.04 LTS.I have found it difficult to setup my screen resolution. It shows by default 800x600.After some tweaking I can stretch upto 832x624.I have seen resolution up to 1024x768 in windows on the same box and same monitor.How can I improve the resolution?I have searched and found out that i need a xorg.conf setup as Ubuntu cant identify my monitor properly.I also installed ddcprobe, read-edid.However I have met with limited success.
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Feb 24, 2011
So I've been using Ubuntu on a Toshiba L645d, and after a few hiccups with the sound and wireless, it's finally working well now. However, the battery is still a bit less when compared to Windows 7 (2:00 vs 2:35, but it came with optimizations on W7 so that might be the reason. A comparison of power used: 25w of power on Ubuntu vs 17.5 on W7.
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May 23, 2010
I've some videos with poor quality.It has pixelation and such problems.Can somebody suggest me some filters to be used with avidemux for correcting the pixelation and maybe deblocking it
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