Latest LQ Deal: Linux Power User Bundle
Go Back > Forums > Linux Forums > Linux - Newbie
User Name
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!


  Search this Thread
Old 03-12-2011, 08:34 AM   #1
LQ Newbie
Registered: Dec 2010
Posts: 18

Rep: Reputation: 0
linux scheduler

I am new to Linux and learning the Kernel. Please suggest any future scope for research in Scheduler. Will it be feasible to take up Linux Kernel Scheduler(CFS,O(1).....) as research topic.
Old 03-12-2011, 10:40 AM   #2
LQ Guru
Registered: Dec 2007
Distribution: Centos
Posts: 5,286

Rep: Reputation: 1191Reputation: 1191Reputation: 1191Reputation: 1191Reputation: 1191Reputation: 1191Reputation: 1191Reputation: 1191Reputation: 1191
Long ago, simply scheduling work into one processor was a difficult (and therefor interesting) topic. Since the cost of both the scheduling decisions themselves and the context switches was relatively high, there were serious tradeoffs between scheduling "well" and scheduling efficiently.

But with faster CPU's the relative cost of the decisions and the context switches is reduced. With multiple cores, the difficult trade offs between throughput and responsiveness isn't as serious.

But now, systems in which memory access speeds are unequal are more common. So those drive a new set of complicated scheduling issues. How much should/can you bias scheduling in favor of putting a thread where its memory can be accessed fastest? How much of an imbalance might be enough to trigger drastic action such as moving pages of memory contents from processors getting too much high priority work to those with only low priority threads ready?
Old 03-14-2011, 10:07 AM   #3
LQ Newbie
Registered: Dec 2010
Posts: 18

Original Poster
Rep: Reputation: 0
Thank you

Thank you for your valuable guidance.
Also Is simulation of scheduler possible so as to execute higher priority work.
May I take up a research over the problem you suggested.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Scheduler available on Linux? NY-Ed Linux - Newbie 1 10-12-2010 10:13 AM
Linux Job Scheduler??? mrbarritt Linux - Software 2 09-27-2010 04:54 PM
Linux Scheduler tbui57 Linux - Kernel 3 02-04-2007 12:37 PM
Linux Scheduler Scarlett_987 Linux - Kernel 1 01-23-2007 08:54 PM
linux 2.6 scheduler panandsapphire Linux - Kernel 1 08-26-2006 09:01 PM > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 02:13 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration