Server :: Gnome Desktop Harming Server Performance?
Feb 4, 2010
On my local apache web server I had installed gnome desktop, because I wanted it to use as a TV. But when I installed the gnome desktop, my requests for web pages became terribly slow (4-5 seconds!). When I deinstalled the gnome desktop, the request where fast again. But I still want to watch TV on my server, so I wander if people know why the gnome desktop harms the performance of the server?
PS. with gnome desktop, ping was <1 ms, samba server worked like charm, wget localhost was <1 ms, but for some reason, when tried to get a webpage from my webserver to a remote machine, it took seriously 4-5 seconds to load a page.
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May 4, 2011
Icons Not Showing in GNOME desktop at REDHAT ES Server.Also no right click on desktop .No Action.
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Aug 12, 2011
is it would be possible create a Ubuntu dvd that contains the ubuntu server desktop and alternate install opptions, as well as all four main desktop environments (gnome, kde, xfce, lxde) and unity. since much of the data is redundant between each version cd's it would probably all fit on one disk. then all that would be needed is two disks one for 32 bit and another for 64 bit. i really think that this could work.
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Jul 2, 2010
Can anyone tell me in performance tunning of apache-tomcat and jboss application server?when I deploy some application in apache-tomcat the performance is say 100 users per second and incase of jboss it is even worst (35-40 users per second)i want to improve my performance 1000 uesrs per second..
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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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Apr 27, 2011
What I try is to execute Linux programs from Windows. What I do:
- I run an X Sever in Windows (Xmin).
- I connect to Linux server using putty.
- Stablish DISPLAY to Windows X Server.
- Run Linux application.
Really, what I do for simplifying the work is create, in a shared folder, Windows direct access to do this work. Ex: I create a link called "tora - Run Oracle Administration Tool.lnk".
When users want to run Tora in Windows, they don't have to install it. Just press the link and it runs a .cmd which does the previous operations. So users can run konsole, LibreOffice, tora, ... and all Linux programs as if they where installed in Windows Clients. And as the Linux and Windows computers are joined to Active Directory, each users access has its own configuration for each program.
Thus, they can try this programs without having to install them.
So as I can run all Linux programs... Why not allowing to run a remote desktop (I know I can do it with Vnc, Xrdp, NX, ...) If user run "konsole", a Linux konsole is open in Windows client. And then he can open X programs (I don't create links for all Linux programs, so the can run the konsole link and run any program). After displaying konsole, if I type "konqueror", konqueror is opened in Windows client.
If type kdesktop, desktop of kde is open, but the menu bar, tool bar doesn't appear...
Here is an image: [URL]
I detail it:
- My client is a Windows 7.
- Open a konsole in a remote linux (titled shell-konsole)
- Run kdesktop command.
- A new window titled "KDE Desktop" is opened.
But no menu or application bar is opened. An it doesn't takes my configuration (my configuration is Spanish).
How can I add menu and application bar to that desktop?
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Jun 24, 2009
I'm new to linux ...
i have managed to install vnc server on my linux server ..
and also installed GNOME, i connected via VNC Viewer and the desktop showed ..
but then i closed the command prompt windows that was opened on the desktop, now when i connect via vnc viewer i get an empty desktop ...
how can i re open the GNOMe?
there's no cammand line in it now!!
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Apr 26, 2011
I execute Linux applications in Windows using an X server for Windows and setting DISPLAY variable in Linux to X server of Windows.
Ex: With putty I connect to Linux and setting DISPLAY to my Windows X Server, run Linux OpenOffice.But, is possible to run a KDE or GNOME desktop, with menus, taskbar,.What command do I have to run?
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Oct 2, 2010
I am hosting apache service on the CentOS5.4. I configure the Apache in default setting mostly. But keep getting complaints from others about the website download too slow, pdf cannot download at all, flash cannot play smoothly, etc.. But on my own machine, everything works fine. Is there any tool for analyzing this problem?
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Aug 22, 2010
I have followed the official instructions here to setup VNC service initially and was able to get it working.
However, during the course of setting up my BIND service, I have done the following:
1) Turned on SELinux
2) Used system-config-security to add the ports TCP:53 and UDP:53
When I tried to save the settings from 2) above, my GNOME desktop delivered via VNC got frozen.
Now when I tried to restart vncserver with "service vncserver restart", I see the following. I am also unable to connect via [url] anymore.
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Jun 16, 2010
I am trying to install "GNOME Desktop Environment" on my server. i used the following command: yum groupinstall "GNOME Desktop Environment" I got it from this tutorial: [URL].. Now when i started the installation on my centOS 5 server. i got the following error please see this image: [URL].. Now i wanted to know how can i fix that issue.
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Feb 25, 2010
Morning All, I have a RHEL 4 box with a broken GNOME package. It boots to TWM. I have looked at some of the posts that recommend looking at config files etc. No .xinitrc file found. Cannot "exec gnome-session" , cannot find file. No choice at login screen. Some Gnome files are on the machine. How do download and re-install the entire Gnome-Desktop package?
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Oct 14, 2010
I'm curious, I believe that one of the ways that OSX make the GUI experience of *nix more 'snappy' was to ditch X and run the window manager more directly on the hardware.
If I'm looking to run Linux on a desktop, and have no interest in sending Windows to other machines on the network, can I run KDE or Gnome with no 'X' to eliminate that ever-so-slight lag with the window manager experience.
I guess basically what I'm asking is is there an equivalent of quartz for Linux?
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Feb 23, 2010
how to change CentOS 5.3 GNOME Desktop to KDE without effecting others configuration?
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May 9, 2010
I had to do quite a lot of digging before I managed to work out how to do this. It turns out to be reasonably straight forward, and so here is my howto all in one place.
Objective: Connect to my Ubuntu (Lucid Lynx) Desktop machine (which does not have a screen or keyboard) using a remote desktop viewer and get my usual GNOME desktop interface. And have the desktop persist while I am not disconnected.
I have recently discovered one niggly issue with some of the keys being messed up. 'm' and 's' in particular? I am looking into it and will update this post when I have resolved it.
The following steps were performed on a freshly installed version of Ubuntu 10.04-desktop. Just for clarity:
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Install a VNC server. There is a choice of servers I chose the "tight" one.
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Setup your VNC password. This password isn't very important as my setup will only allow for connections via SSH, so 123456 is what I used. One can possibly disable it?
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At this point or the first time you run 'vncserver' (I forgot to check) the all important and much discussed ~/.vnc/xstartup file is auto generated. This is the make or break place where you can either get GNOME over VNC or not. My xstartup which required NO changes was:
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Give the VNC server a test, by running it from the command line.
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Try connecting to the VNC server:
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Ok if that all worked then great! It all did for me and my machine was fresh from the CD.
Now we setup the VNC server to run all the time. There are a variety of ways of doing this. Since this howto requires the use of a SSH shell one could quite easily run the vncserver (as we did above to test it) and then disown (haven't tested if this is actually required) commands the first time you connect. This would leave the VNC server running until you used the vncserver --kill command. This would be a suitable approach if you had many different users wanting to have VNC GNOME desktops.
For convenience in a single user setup we can get the VNC server to be started at boot time:
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Make the contents of 'vncserver.user' (credits to some smart guy on some blog out there that I couldn't find again. and then I made a few improvements):
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Aug 2, 2011
I install ubuntu server 11.04 I select ubuntu server from boot menu then enter username and password and then i see a command line line and a black background How i can setup a graphical app (some thing like genome) for my server I do not know any thing Any body can explain all step of this for me how I connect to internet how download graphical app and install it? (I connect to web with windows 7 and adsl internet)
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Jan 10, 2010
little offtopic: GNome is really needed on server OS ? I do not install "X Server" subsystem on server, to optimize performance of server.
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Jan 29, 2010
how much of a performance impact full disk encryption (say, AES 256-bit) has on disk-related activities? On one particular project I'm involved in I am trying to weigh out security vs performance issues.
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Jan 4, 2011
I have installed a linux server, centos gui server with Raid1, his role will be only a file server. I installed samba and configured it. The file system is EXT3. the server got 4 gigs of memory.There is a program in windows that writes files to the share.I searched and i found that there is some commands that you add and they boost the performance.
I got complains that the writes are not fast enough. Before me another IT guy configured the file server and it was faster, what he told my customer that he changed some command of cache but i dont know exactly what he did. I have been asked to find how to boost the performance.Please give me more commands to try to boost the performance of Samba or tell me if i need to change anything..
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Jun 22, 2010
Just want to know if solid state drive supported by slackware 13.1? Coz I want it to try to boost my server performance???
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Apr 23, 2010
is there any way to convert ubuntu gnome desktop into ubuntu server..however i try search google and various article that are related to server to into gui interface..in fact i have windows xp with ubuntu and ubuntu as testing installed inside windows to run. but my basic networking commands not working like dig,host etc however internet working fine.
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Feb 4, 2010
I am starting to get bottlenecks in the loading of webpages via squid. It is not the actual playback of video that has performance issues, this is very good. However, when a webpage is first requested, it is the initial response that takes more than a few seconds to load the page. I am wondering how to troubleshoot the issue as I don't know whether it is squid, the dns lookup, the number of users, RAM, or the bandwidth. Bandwidth seems to be the least likely since the server has a high bandwidth and video streaming appears to have no problems. I do not have caching turned on yet, which would certainly help because I do not want to cache flb, mp3, etc. files and the last time I turned on caching the performance was actually worse. The slow loading of pages has only just beguin to creep into the performance, it wasn't an issue before.
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Jun 8, 2010
I broke down and spent some $$ on a new server for home use. I mostly do technical research and testing, plus store movies and music. My interests are mainly in the IET iscsitarget performance.
Server system consists of an AMD Phenom II 550, 8GB RAM, 1x 80GB system partition, and a LVM-vg0 software raid5, running Ubuntu 10.04 server x64.
The vg0 consists of 3 x 500GB 7200RPM SATA drives (mdadm) sliced up with 100GB for VBox VMs, one slice is an iscsitarget for a Windows 2k3 server, and another slice iscsitarget for a desktop.
With this setup, the win2k3 server is booted from a .vdi image stored on the ext4 lvm raid5 vg0. Here are the DiskTT stats.
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However, with the Win2k3 server and the MS iscsi initiator I get using DiskTT:
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The speeds are incredibly slow considering a non iscsi connection is screaming fast in comparison. Any ideas?
All nics are 1GB.
Here is my ietd.conf
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Feb 23, 2011
I am currently reading [URL] its an old document from 2006, so i am not really sure how much information in it is still valid.
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Mar 1, 2010
I am installing Red Hat Linux enterprise 5.0 on HP proliant ML 110 G5 with X3330, 8 Gb 2 X 250gb SATA Config. Time required for full istallation is around 2hours 30 minutes. What could be the reason?
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Nov 16, 2010
I wasn't sure where to post this question so administrators, feel free to move it.I have a media server I set up running Ubuntu 10.4 Server, and I set up a software raid 5 using 5 Western Digital Caviar Green 2TB 7200RPM 64MB drives. Individually they benchmark (using the Ubuntu's mdadm GUI (pali?somthing...) at about 100-120mb/s read write.I set the raid 5 up with a stripe size of 256kb, and then I waited the 20 hours it took to synchronize. My read speeds in raid are up to 480mb/s, but my write max is just under 60mb/s. I knew my write performance would be quite a bit lower than my read, but I was also expecting at least single drive performance. I have seen other people online with better results in software, but have been unable to achieve the results they have gotten.
My bonnie++ results are more or less identical (I used mkfs.ext4 and set the stride and stripe-width).The PC has 2048mb of RAM and a 2.93Ghz Dual Core Pentium (Core 2 Architecture), so I doubt think that's the bottle neck. These drives are on the P55 (P45*) South Bridge SATA controller.
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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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Jul 6, 2010
I have a Nagios server with a lot of hosts and services; around 400 services (in all) and 150 hosts. Most of these services are programmed in bash language. The problem is the server has a high load average; between 5 and 11. The server has the next features:
- Intel Xeon 2.66GHz Dual Core
- 4MB cache memory
- 1GB RAM memory
- 50GB hard disk
Is this load average normal? Should I program the plugins with C?
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Jan 5, 2011
I have recently migrated my file server over to a HP Microserver. The server has two 1TB disks, in a software RAID-1 array, using MDADM. When I migrated simply moved the mirrored disks over, from the old server Ubuntu 9.10 (server) to the new one 10.04.1 (server).I Have recently noticed that write speed to the RAID array is *VERY* slow. In the order of 1-2MB/s order of magnitude (more info below). Now obviously this is not optimal performance to say the least. I have checked a few things, CPU utilisation is not abnormal (<5%) nor is memory / swap. When I took a disk out and rebuilt the array, with only one disk (tried both) performance was as to be expected (write speed >~70MB/s) The read speed seems to be unaffected however!
I'm tempted to think that there is something funny going on with the storage subsystem, as copying from the single disk to the array is slower than creating a file from /dev/zero to the array using DD..Either way I can't try the array in another computer right now, so I though I was ask to see if people have seen anything like this!At the moment I'm not sure if it is something strange to do with having simply chucked the mirrored array into the new server, perhaps a different version of MDADM? I'm wondering if it's worth backing up and starting from scratch! Anyhow this has really got me scratching my head, and its a bit of a pain! Any help here would be awesome, e-cookies at the ready! Cheers
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Jun 24, 2010
I have several server (mailserver, webserver and lot of fileserver) all are 32 bit slackware and I am satisfied! My company plan to upgrade our server and buy a 64 bit server maybe amd x3 or opteron? Is slackware 64 bit will help boost my server performance? Or will I stick to 32 bit for now?
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