CentOS 5 :: Custom Kernel Config For High FPS Game Servers
May 5, 2009
I have been wanting to increase the fps rate of my current game servers, and I need to have a custom config for this cause I'm only hitting 500. I have, attached, a custom kernel config and not to sure what to do with it at this point. The file name is config-2.6.24-zen4-lld.no-po.2000hz
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.24-zen4-lld.no-po.2000hz
# Tue Nov 25 22:54:23 2008
# Zen Options
# Kernel Tunables
# CONFIG_ZEN_SERVER is not set .....
# IO Schedulers
# CONFIG_FINGERPRINTING is not set
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Feb 17, 2010
How do I discover which kernel config parameters are important for my laptop hardware and frequently used applications? I'm not looking for something that is 100(...)% optimized for my hardware. I would prefer to have modules for everything that I don't use at all or often. I would prefer to avoid modules (built-in) for things that I use all the time but then any updates might mean a kernel rebuild. I'm currently running the generic PAE edition of the repository kernel. I think that I'm running the 32-bit flavor at that.
Code: user@host:path$ uname -a Linux mumbles 2.6.31-19-generic-pae #56-Ubuntu SMP Thu Jan 28 02:29:51 UTC 2010 i686 GNU/Linux I know the following from sysinfo
[Code]....
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Mar 15, 2009
Yesterday I installed a new server with a large partition for my XEN images. This partition is a about 930GB. The installation tooks ages and after he finished I was finding out why that is. The SoftRAID1 I configured is rebuilding the large partition.
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Oct 31, 2009
I'm running CentOS 5.3 and would like to know what the "best" or "proper" method is to build a custom kernel using the generic kernel sources from kernel.org. Most of the references I've found talk about modifying the current CentOS kernel using the RPM way. I really want to have the latest kernel due to some important security issues that haven't been addressed in the current CentOS 5.3 kernel.
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Jun 20, 2011
have a sample kernel .config, so I can compile a small custom kernel on my vps? I tried to make it alone,but I removed stuff,so that my VPS won't start anymore. Virtualization is KVM, running on a Core 2 Duo.
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May 27, 2009
I have builded my kernel through wiki manual, BUT, the kernel-headers rpm-package has not been builded. Now i have only two packages: kernel and kernel-devel. Is that ok? (i think, that it is not ok, because when i build the same version of kernel on x86_64 platform, after rpmbuild command i have kernel, kernel-devel and kernel-headers packages) My CentOS version is 5.2; platform i686; kernel, kernel-headers, kernel-devel packages 2.6.18-92.el5.
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Mar 3, 2010
I have compiled and created a kernel rpm kernel-2.6.18165.11.1.el5-3.i386.rpm
then created initrd image
I have installed the above via kickstart installation
%post
mount xxx.xxx.x.xx:/var/www/html/os/i386 /mnt/tmp
cd /mnt/tmp
rpm -uvh kernel-2.6.18165.11.1.el5-3.i386.rpm
cp initrd-2.6.18-165.11.1.el5.img /boot
[Code]....
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Mar 18, 2010
I am trying to build a custom kernel but I couldn't. Here are the steps to reproduce it:
1. Set Up an RPM Build Environment as its is explained in [URL]
2. Then follow the instructions in [URL]
3. When I try to install the kernel source rpm I get the following error:
[matias@Centos ~]$ rpm -i [URL
warning: user mockbuild does not exist - using root
warning: group mockbuild does not exist - using root . . .
warning: user mockbuild does not exist - using root
warning: group mockbuild does not exist - using root
error: unpacking of archive failed on file /home/matias/rpmbuild/SOURCES/linux-2.6.18.tar.bz2;4ba24901: cpio: read
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Jul 7, 2009
I need to compile a custom kernel for my xserve1,1. Or are there people who already managend using centos on their intel xserve? The current centos 5.3 kernel configuration does not support EFI. Right now I am able to boot the installation of centos to the welcome screen
and get stuck at the part where I need to skip or run the cd test. (keyboard and mouse won't work)
Just the boot screen
Screen where I pick option 2, the cd installer
Image shows ubuntu but it is centos. forgot to change the menuentry description name in grub.conf
ROMimage present
The screen that I see after image 3
The screen that I see after image 3
The window of centos
I tried the centos 5.3 86_64 DVD and netinstall. I already managed to run debian/ubuntu on my xserve1,1 with use of refit + grub2 but I need centos to use cpanel...
My xserve specs:
Xserve1,1
Dual-Core Intel Xeon
Processor Speed: 2 Ghz
Number of processors: 2
Total number of cores: 4
L2 Cache (per Processor): 4 MB
Memory: 8 GB
Bus Speed: 1.33 GHz
Boot Rom version: XS11.0080.B01
SMC Version (system): 1.11f5
LOM Revision: 1.2.8
Installed:
OSX 10.5.7 server
Developertools: 3.1.2
refit: 0.13
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Dec 7, 2010
I have read that when using xfs with lvm2, prior to kernel 2.6.29 write barriers are by deffault disabled.As i want to migrate /home to xfs (and create a external partition to hold some data in xfs too) i was thinking in compile a custom kernel 2.6.30 or higher from [URL].I have read the wiki, all the warnings , and that for compile a kernel.org kernel you should use the Linux Kernel in a Nutshel guide/book. But i don't really know if would worth do that only to have write barrier support , more when in one month i will buy a ups to be sure i can shutdown the pc well if the power goes out.Should i enable write barriers on xfs with lvm2 ,although going to have a ups ?
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Apr 5, 2011
I got the following error after compiling kernel version 2.6.38.2 from sources with this Howto:[URL].. Creating root device.
Mounting root filesystem.
mount: could not find filesystem '/dev/root'
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
[Code]...
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Mar 4, 2010
(Mods: If you feel this belongs more in the Games or Wine discussion area, please feel free to move. This question does intersect many areas, so was unsure where to put)
I have a funky server Ubuntu 9.10 Enterprise setup where I have X on all the time (using Xfce4 - not Xbuntu) with latest wine so I can run Windows only based game server executables. One of the applications is a simple dedicated racing game server made by the company I work for that works perfect in wine (unfortunately, the full 3D game client does not, so its a windows only game). The other is more just to test, runs Serious Sam HD dedicated with wine with a steam client active in background since SSHD Ded requires a steam client logged in (just create a dummy account).
Im getting some lag issues with the SSHD on the end-users client side. Unsure if its related to it being a more complex game and using wine to translate slowing it down. Things like tiny warps once in awhile, and the ping of clients kinda jumping around.
Im pretty sure my network settings are ok. Maybe not fully optimized for every bit via ipv4. Still though. This 1U Opteron server is in a ISP with a full 1000 up and down. Ports are locked out that aren't being used. I do have apache going, but its nothing strenuous. The CPU isnt used overly so. Maybe peaks out around 60% under strain, but mostly 20-40%. Memory use is about 550-700megs for SSHD itself. Given, it only has 2 gigs total at this time, but I still usually have near a Gig of memory available at most times.
I admit newbness of linux servers in general. Was reading about other game servers like CS:S requiring a ticked kernel near 1000 to get the least amount of lag. Some even saying they dropped the tickless options of the newer 2.6 kernels on purpose because they produced lag. Was checking on the history of newer Windows Server like 2008 and they still use a ticked OS, though a more optimized version.
So this boils down to should I be running a Ticked OS kernel to run a more complex Windows based dedicated server? I haven't tried thus far, well because I am again a bit of a n00b to all this. That and I'm not sure you have to tell wine or the SS:HD dedicated exe itself to run at a full ticked rate (no option I have seen for a command line function in the SS:HD itself).
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Jul 10, 2011
I'm running Ubuntu Server 11.04 with OpenSSH, trying to create an ssh tunnel (for web traffic) to it from my (also Ubuntu) laptop. This is the command I'm using to create the tunnel:
Code: ssh -ND localhost:8080 george@192.168.1.20 I had it all working on a virtual machine.. which was deleted What settings/lines do I need to change/add from the default OpenSSH config files to get tunnelling to work? I've Googled and AllowTcpForwarding is set to yes, as is X11Forwarding.. but it still doesn't work. Chrome can connect to the server, but says the connection was closed before any data was sent.
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Nov 9, 2010
I am trying to install GRUB with a custom location for my config file. Is this possible? if so where can I find how to do this? Found nothing by googling except where it should be located and how to install it. P.S. enter/spacing doesn't work
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Sep 7, 2009
I was tryin to deploy svn on centos 5 with respect to [URL] I am stuck understandin the location svnpath parameter on svn config
[Code]...
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Jan 24, 2010
I have a problem with my custom kernel when I want to create the Nvidia kernel module.After this finished I installed the image and headers and created the Nvidia kernel module. Everything worked fine.However, if I remove the linux-source from my home directory then I can't create the kernel module.Even though I have the headers for the kernel installed.
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Apr 24, 2011
I'm building my own ubuntu variant for low resource systems at the moment. It's based from the ubuntu 10.10 minimal install (12mb iso). It uses openbox as the window manager and SLiM as the login/display manager.
What I would like two know is how to have a few config files that are on the live cd to be altered for the installed system. Specifically, SLiM autologin, but I'll probably find other things to change aswell. Basically a sort of "first boot script".
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Jan 22, 2010
I'm trying to run extract-ikconfig because I've mistakenly deleted an old kernel config that I'd like to recover. However, when running the script from the latest (2.6.32.5) tree I run into this error:
Quote:
ERROR: Unable to extract kernel configuration information.
This kernel image may not have the config info.
Coincidentally, this happens with all of my kernel images. Is it a fixable problem? I should really set CONFIG_IKCONFIG_PROC next time..
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Jun 1, 2010
This game is Java based. After rebooting the game works, but on ending the game several notification boxes remain. If these boxes are not closed in the reverse order that the game opened them, it is no longer possible to close them. Only by killing the Java processes can these notifications be made to close. Also after playing the game, even if all these notifications are closed it is many times necessary to kill the Java process(es) in order to get the game to load again at a later time. I am currently using Slackware 1.30, but a similar problem has existed in several of the past releases.
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Dec 22, 2009
I wonder if there is any fast deploy kernel for multiple servers / VPSs when new kernel is available? Kernel from RHE/CentOS is always old comparing to new versions from kernel.org
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Apr 28, 2010
i have the qt designer and other applications for program development that came with the centos install, but is there any software that is specific for video game design?
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Apr 27, 2010
can i install gamemaker on centos 5, or is that considered a windows application?
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May 6, 2011
Do you know any game engines or game studios that can make adventure games, for instance in the style of Myst (1st person) or in the style of old Sierra games (3rd person), like King's Quest, Space Quest, etc.?I've seen AGI Studio, but it is too old, I'd like to use more modern graphics (although there is no need for 3D).
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Apr 27, 2010
Most kernels are written in low level programming languages such as C and Assembly. Would it be possible to write a kernel in a high level language such as Python? Many high-level languages are themselves written in C.
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Nov 10, 2009
I am having new hardware and IDE driver for that hardware as drive disk image (it8213_centos53.img). CentOS 5.3 installation is working fine with drive disk image at USB and CentOS 5.3 at DVD. Our application uses CentOS 5.3 and we build a custom kick-start ISO for installations. Using that ISO client is going to install on all hardware boxes.
Note while installing :
a) No network connection is avalible.
b) No USB isavalible.
c) No floppy is avalible.
d) Only single CD-ROM is avalible.
So, is it possible to build single custom kick-start CentOS 5.3 ISO which contains dirve disk image and entire installation will be done using that image. If so please let me know the steps to build it.
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Oct 14, 2010
a stock fedora 11 install on my embedded board results in the primary CompactFlash card being driven by the SCSI driver and is called SDA..running my custom kernel which i have slimmed down and yanked out the SCSI stuff because I dont need it, results in my CompactFlash card being called HDA of course driven by the ATA driver.which should I be using? both work just fine.. the CompactFlash card is on board and according to Soekris is actually run from an IDE controller, as there is no SCSI on board..
so im assuming the less amount of system overhead is to run it as IDE?I have no issues running it either way I just want to do whats right.. and what is going to be supported in kernels down the line, as im considering a bump from my current 2.6.30 kernel upwards for my project.
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Jun 15, 2011
I recentled upgraded all the packages on my server and now I have an issue where I can't get any thing to install or uninstall do to errors, This is what I get:
praetorian@praetorian:~$ ps ax | grep dpkg
7330 pts/1 Ss+ 0:00 /usr/bin/dpkg --status-fd 21 --configure bind9 cups cups-bsd
7331 pts/1 S+ 0:00 /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/bind9.postinst configure 1:9.7.3.dfsg-1ubuntu2
[code]....
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Jan 14, 2010
What i want to be able to do is create a custom kickstart for my centOS 5 server. I want to create a bootable cd that I can pop in my server and basically walk away for 45 minutes and I come back and its fully installed. All the directions I have read so far tell me that I have to create a seperate ks.cfg and then I need my original centos cd to get it booted. Then the cd will ask for where the ks.cfg file is and I have to type the location. I just want to pop the CD in and type in linux_clean or something and have it perform a custom install based on the information and specification in my ks.cfg. How can I go about doing this?
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Feb 23, 2010
I been trying all day to compile a kernel i downloaded from http://www.kernel.org/ (2.6.32.8 )Following this help thread viewtopic.php?t=4468.When i invoke make xconfig i'm just kinda lost at that point. Not really sure what to do, so i just save it as is and then compile/install.when i try to boot the kernel, a kernel panic happens saying it can't not mount the root partition.So i am sure i am missing a step with the xconfig part but not sure what.
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Jun 18, 2011
This is (I'm sure) a silly question, but when reading the guide for custom kernel [url] it mentions I need to use yumdownloader to pull the source as an RPM.
How exactly do I find mirrors etc for this (and where do I configure it)?
I've already got the source locally along with the patches I want to use, and want to try this the 'fedora' way. I'd normally just use make/make modules etc, but I've never tried it via RPM.
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