General :: Modify Kernel With Non-Preemptive Scheduling
May 1, 2010How to modify kernel to non-preemptive process scheduling only. Suggest any site that provides this kind of source code.
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General :: Kernel With Non-preemptive Process Scheduling?
May 1, 2010how to modify kernel source to make its process scheduling to non-preemptive and FCFS ?
View 2 Replies View RelatedGeneral :: Kernel Scheduling Algorithm
Sep 8, 2010is linux kernel is priority preemptive kernel?if it is. where it is using round robin scheduling algorithm?when processes are scheduled for the processor process will be allocated as which sechudling alogorithm?
View 1 Replies View RelatedUbuntu :: How To Modify Kernel And Compile It
Aug 16, 2011I am new to Linux Kernel. I want to disable branch prediction in kernel and recompile for my research purpose. Can anyone point me to clear instructions on where i can find the kernel config file in ubuntu and steps to recompile the updated kernel
View 1 Replies View RelatedProgramming :: How To Modify System Kernel
Dec 7, 2010For my work, I have to modify the routing lookup process at Linux kernel.
The details is below:
A-----B.
We have pcA, pcB (using Linux OS kernel 2.6.26.5) connect together. We need to modify the source code of kernel at B in order to if A sends the packets with destination IP address as C, pcB still receives this packet and send to transport layer (that means, it bypass the routing lookup process at kernel).
The solution I used as the following code...
Ubuntu Installation :: Kernel Parameters : How To Modify Them
Feb 4, 2010Bottom line first: Is there a GUI or otherwise friendly tool to modify the kernel parameters? One that will give help on a highlighted parameters?
Now as to my reason for this question:
In preparing for an Informix installation, I may need to change some kernel parameters. I could follow the advice of G�rard BIGOT from a couple of years ago at this URL. However, messing with the kernel this way, by directly editing /etc/sysctl.conf, is a bit scary. I have already backed up the current one and started editing according the Informix machine notes. However, I have commented out my new settings. [:Chicken]
The scariest aspect of this is that the notes recommend settings to kernel parameters that I do not find in /proc/sys/kernel. for example, it recommends setting SHMMIN to 1 but when I can /proc/sys.kernel/shmmin, there is no such file. (I did find shmmax.) Similarly for the very logical shmseg (max number of shared memory segments) - not found. I am afraid to add these into sysctl.conf if the equivalent pseudo-files don't exist.
Additional question: Where [on-line] do I find all kernel parameters documented? This is so that I am more certain of what I am doing instead of relying on my memory. For example, I don't recall the names of the parameters that control Kernel-Asynchronous I/O (KAIO) events.
Ubuntu :: Modify The Source Code Of The Kernel?
Oct 4, 2010I want to modify the source code of the kernel so that the new compiled kernel should disable USB ports.
View 4 Replies View RelatedDebian :: Modify The Source Of A Custom Kernel?
May 1, 2011I'd like to create a custom squeeze kernel. Is it a really bad idea to edit to edit the kernel config file directly instead of using "make config", "make menuconfig" or "make gconfig"? My problem is I missing a search function, for example in "make menuconfig" and cannot find some entries.
View 2 Replies View RelatedUbuntu Installation :: Preemptive Preservation Of Grub During Xp Install
Mar 24, 2010I have, in the past, installed windows along side my main OS, Ubuntu. Every time I install windows, the grub ends up disappearing and I have always had to re-install Ubuntu to get the grub back. I have a lot of files and it would take a while to back up so would anyone be so kind as to tell me if there is a way to preemptively preserve grub so it doesn't disappear after I install XP on half of my hard drive?
View 4 Replies View RelatedFedora :: Subject - Modify Only Parameters In Kernel Config
Aug 28, 2009I want to start to play with "homemade" kernels. (To get some experiences in this subject). I want to do this step-by-step. I have already read a lot about this. I have a Fedora 10 running. So I want to start with this. I have read that there is a "special" way to create a kernel for Fedora. [URL] OK. I understand this +/-. When you build a new kernel with an other version number, you have to rebuild all the modules with this new kernelversion, and you have to install these also.
But : I want to start with modify only some parameters in my kernel config. Do I need to rebuild and re-install the modules also? Will it not be enough to rebuild only the kernel? (vmlinuz) Where can I find some information about the options I can disable in my kernel to speedup my system? (boot process ed). I want to suppress the loading of unneeded modules. I want to understand the options in menuconfig (and there are a lot of options ! ! )
Slackware :: How To Modify Grub To Boot Using Generic Kernel
Feb 16, 2011My Slackware boots using the huge kernel. I am not using LILO; I am using GRUB from the extras directory on the DVD. I followed the tutorial @ [URL] up to the point where it discusses modifying LILO. My /boot/grub/menu.lst reads, in part:
# Linux bootable partition config begins
title Slackware Linux on (/dev/sda7)
root (hd0,6)
kernel /boot/vmlinuz root=/dev/sda7 ro vga=normal
# Linux bootable partition config ends
This boots the huge kernel. What changes must I make to the above menu.lst entry to boot using the generic kernel?
General :: Cron Job Not Scheduling?
Jan 9, 2011I have a cron job to schedule the task on the third sunday of the month.I saw the previous threads but didn't find any solution.
How the cron syntax can be written.
General :: Earliest Deadline First Scheduling?
May 28, 2009kindly give me example of earliest deadline first scheduling?
View 5 Replies View RelatedGeneral :: Do Scheduling Using /etc/crontab File?
Feb 11, 2011i want to do scheduling using /etc/crontab file instead of using crontab -e that is crontab command on the terminal.i am appending to the crontab file in the /etc directory but the scheduling is not happening
View 7 Replies View RelatedGeneral :: Scheduling Script Using /etc/cron.d?
Mar 10, 2011iam try to schedule my job in a file made in /etc/cron.d file as follows* * * * * tomcat6 /home/etika/Desktop/eka.sh /home/etika/Desktop/ea/etika.txt abc@gmail.comwhere eka.sh belongs to etika which is the root and etika.txt belong to tomcat6 this command is not running iam confused about the name of the owner written after the *'s please tell me whose name is written after the *'s(the schedule of the script) the owner of the script or the owner of the file which iam passing as an argument to the shell script
View 2 Replies View RelatedGeneral :: CGROUPs And Fair Group Scheduling?
Apr 23, 2010I have played around a little bit with CGROUPS and the fair group scheduler ( using kernel version 2.6.31). When you have CGROUPS in a flat structure, with only one layer from the root-cgroup, everything works as you might expect when setting the cpu.shares parameter, i.e. a fraction of the total. But when I experimented with having deeper levels of CGROUPs it did'nt make any sense sometimes. For example, I had one CGROUP with the maximum number of shares (260000 something) , and two childgroups with quite little shares, 5000. Then I created some cpuhogging processes ( while(1); ) and put most of them in childgroups and one in the parentgroup. The logical thing would be if the parentgroups single process took almost all CPU-time, as it had the maximum number of shares, but instead the processes in the childgroups got the most CPU-time.
I have tried to figure out how it works by looking at the source code, but I can't really understand it. How does the hierarchical structure of the cgroup-tree interact with the flat aspect of it, i.e. siblings? Or do I misunderstand the whole concept?
General :: Write A Scheduling Script In Java?
Mar 2, 2011am newbie and i have problem to write a scheduling script in java, this script should do something in certain time interval... Could anybody help me, maybe give some example or source that maybe useful
View 3 Replies View RelatedGeneral :: Scheduling Shutdown After Download Completion?
May 20, 2010Is there any way to schedule shutdown, from terminal,right after some currently running download in mozilla completes??
View 6 Replies View RelatedGeneral :: Scheduling Product That Is Available To Handle The Production Code?
Oct 12, 2010I am proposing moving from the mainframe to Linux. Problem is that I am not aware of a scheduling product that is available to handle the production code. Currently using CA7. Is there anything out there that accomplishes the same thing? As you can tell, I am NEW to Linux!
View 1 Replies View RelatedGeneral :: Get And Modify Thread_info For A Given Pid?
Jan 21, 2010How do I get thread_info for a given pid? Is there a way to modify PC of thread A in thread B so once thread A is scheduled, it will jump to the new instruction?
View 2 Replies View RelatedGeneral :: How To Modify Rm Command
Jun 22, 2010When we execute rm command then the target files or directories are permanently removed from our computer.
Is there any way my which when we execute rm command then the files or directories moved to Trash.
General :: Modify A File That Contains \ Using Sed Or Awk ?
May 13, 2010I need to modify a file that contains \tsus.fbfs.comappsdataStormLossProduction and replace the \tsus.fbfs.comappsdataStormLossProduction line with rm -f /mnt/nfsvol/PC/SLR/
I have tried:
But it provides an error on the second . I need to change this in place and not redirect to another file.
Is this possible? I have used sed and awk before but not extensively.
General :: MBD Modify For Dual Boot?
Dec 29, 2010I am going to install the newest version of Ubuntu on my computer. I am currently running Vista. I would like to be able to dual boot. I understand the whole partitioning deal and booting from the cd but i am worried that doing so will overwrite my Master Boot Record for windows. Do I need to modify the GRUB2 after installation. Read many writeups but was hoping for some input.
View 1 Replies View RelatedGeneral :: How To Modify Some Particular Elements Of Column
Feb 22, 2010It is very important for my research work. For example mydata.txt:
id type x y z
1 6 0.474611 0.227223 0.583947
2 4 0.422894 0.22726 0.536791
3 5 0.448963 0.200148 0.560336
4 3 0.386478 0.207721 0.515293
5 6 0.371617 0.22361 0.582206
6 4 0.32123 0.222999 0.534782
How to change second column (type) whose values are 4 and 3 to value 1, so that mydata.text file become:
id type x y z
1 6 0.474611 0.227223 0.583947
2 1 0.422894 0.22726 0.536791
3 5 0.448963 0.200148 0.560336
4 1 0.386478 0.207721 0.515293
5 6 0.371617 0.22361 0.582206
6 1 0.32123 0.222999 0.534782
General :: Modify The Output Of Df Command?
Mar 20, 2010this is the output of df command on my system
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda8 18073924 4911628 12244184 29% /
udev 642140 308 641832 1% /dev
[code]....
General :: Put Modify Packages In YUM Repository?
Apr 20, 2011I have set up a local YUM repository to install own modify packages om my clients.
View 2 Replies View RelatedGeneral :: How To Modify Grub Menu
Nov 3, 2010How can I modify my grub menu? I remember that on openSuSe was /boot/grub/menu.lst. But in debian there isn't it. In ubuntu is the same for modifying grub menu?
View 1 Replies View RelatedGeneral :: Modify Network Protocols - TCP In Particular
Aug 10, 2009I m pretty new to Linux..! I've been given a task to modify network protocol(TCP in particular). So now i've to make few changes to the kernel which includes modifying few source files. So i want to know how can i go abt it. Till now i've explored various .c files of kernel(Eg.tcp.c,tcp_input.c etc etc)by referring few books. And now comes the important part of implementing it. So how exactly can i go abt it?? I went thru various threads like installing a kernel,compliling a kernel and other things. But i m not getting the exact sequence in which i should do it. I've installed fedora 10. But i cannot see any source files which i can modify. Where and how can i modify these files?
View 5 Replies View RelatedGeneral :: Unable To Use AWK To Modify Column
Jul 28, 2011I want to use awk to modify file like this
origin:
A[]A[][]A[]A
modified:
A[]a[][]A[]A
but when I use
awk '{$2="a"; print $0}' inputfile
the output is
A[]a[]A[]A
where the [] means space. This is not what i want. I guess that is because the OFS is one space by default, but i really don't know how to solve this.
General :: Modify Network Packet In Wireshark?
Nov 12, 2010anyone know network packet editor for Linux? or modify network packet in wireshark?
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