Adding Soft and Hard Deadlines to the Linux Scheduler










0














I am trying to create two new system calls for the Kernel, to set and get deadlines.



I know the general concept, but I am struggling as to what the .c files will look like.



Could anyone give me some examples as to how, given a process's pid, give it a soft/hard deadline.



Also, if possible I'd like to know how I can examine if a process is child of another process or not.










share|improve this question























  • Do you know how to add and test new syscalls on Linux? What about the code is confusing? What have you tried so far? What do you mean by deadline, let alone a soft vs hard deadline? Why do you want to create new syscalls for this? The last part about checking if a process is a child of another is answerable as is, but the rest requires more information.
    – rationalcoder
    Nov 12 at 15:44











  • The reason i m doing this is to modify the Linux Scheduler and set deadlines for each process. So how do i check if a process is a child of another process ?
    – Μιχάλης
    Nov 12 at 15:49











  • Ah, then that's out of my wheelhouse, sorry :)
    – rationalcoder
    Nov 12 at 15:56















0














I am trying to create two new system calls for the Kernel, to set and get deadlines.



I know the general concept, but I am struggling as to what the .c files will look like.



Could anyone give me some examples as to how, given a process's pid, give it a soft/hard deadline.



Also, if possible I'd like to know how I can examine if a process is child of another process or not.










share|improve this question























  • Do you know how to add and test new syscalls on Linux? What about the code is confusing? What have you tried so far? What do you mean by deadline, let alone a soft vs hard deadline? Why do you want to create new syscalls for this? The last part about checking if a process is a child of another is answerable as is, but the rest requires more information.
    – rationalcoder
    Nov 12 at 15:44











  • The reason i m doing this is to modify the Linux Scheduler and set deadlines for each process. So how do i check if a process is a child of another process ?
    – Μιχάλης
    Nov 12 at 15:49











  • Ah, then that's out of my wheelhouse, sorry :)
    – rationalcoder
    Nov 12 at 15:56













0












0








0







I am trying to create two new system calls for the Kernel, to set and get deadlines.



I know the general concept, but I am struggling as to what the .c files will look like.



Could anyone give me some examples as to how, given a process's pid, give it a soft/hard deadline.



Also, if possible I'd like to know how I can examine if a process is child of another process or not.










share|improve this question















I am trying to create two new system calls for the Kernel, to set and get deadlines.



I know the general concept, but I am struggling as to what the .c files will look like.



Could anyone give me some examples as to how, given a process's pid, give it a soft/hard deadline.



Also, if possible I'd like to know how I can examine if a process is child of another process or not.







c kernel scheduler deadlines






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 12 at 16:51









rationalcoder

667524




667524










asked Nov 12 at 14:13









Μιχάλης

196




196











  • Do you know how to add and test new syscalls on Linux? What about the code is confusing? What have you tried so far? What do you mean by deadline, let alone a soft vs hard deadline? Why do you want to create new syscalls for this? The last part about checking if a process is a child of another is answerable as is, but the rest requires more information.
    – rationalcoder
    Nov 12 at 15:44











  • The reason i m doing this is to modify the Linux Scheduler and set deadlines for each process. So how do i check if a process is a child of another process ?
    – Μιχάλης
    Nov 12 at 15:49











  • Ah, then that's out of my wheelhouse, sorry :)
    – rationalcoder
    Nov 12 at 15:56
















  • Do you know how to add and test new syscalls on Linux? What about the code is confusing? What have you tried so far? What do you mean by deadline, let alone a soft vs hard deadline? Why do you want to create new syscalls for this? The last part about checking if a process is a child of another is answerable as is, but the rest requires more information.
    – rationalcoder
    Nov 12 at 15:44











  • The reason i m doing this is to modify the Linux Scheduler and set deadlines for each process. So how do i check if a process is a child of another process ?
    – Μιχάλης
    Nov 12 at 15:49











  • Ah, then that's out of my wheelhouse, sorry :)
    – rationalcoder
    Nov 12 at 15:56















Do you know how to add and test new syscalls on Linux? What about the code is confusing? What have you tried so far? What do you mean by deadline, let alone a soft vs hard deadline? Why do you want to create new syscalls for this? The last part about checking if a process is a child of another is answerable as is, but the rest requires more information.
– rationalcoder
Nov 12 at 15:44





Do you know how to add and test new syscalls on Linux? What about the code is confusing? What have you tried so far? What do you mean by deadline, let alone a soft vs hard deadline? Why do you want to create new syscalls for this? The last part about checking if a process is a child of another is answerable as is, but the rest requires more information.
– rationalcoder
Nov 12 at 15:44













The reason i m doing this is to modify the Linux Scheduler and set deadlines for each process. So how do i check if a process is a child of another process ?
– Μιχάλης
Nov 12 at 15:49





The reason i m doing this is to modify the Linux Scheduler and set deadlines for each process. So how do i check if a process is a child of another process ?
– Μιχάλης
Nov 12 at 15:49













Ah, then that's out of my wheelhouse, sorry :)
– rationalcoder
Nov 12 at 15:56




Ah, then that's out of my wheelhouse, sorry :)
– rationalcoder
Nov 12 at 15:56

















active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













draft saved

draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53263985%2fadding-soft-and-hard-deadlines-to-the-linux-scheduler%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown






























active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes















draft saved

draft discarded
















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53263985%2fadding-soft-and-hard-deadlines-to-the-linux-scheduler%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







這個網誌中的熱門文章

How to read a connectionString WITH PROVIDER in .NET Core?

Node.js Script on GitHub Pages or Amazon S3

Museum of Modern and Contemporary Art of Trento and Rovereto