Adaptive Partition Scheduler
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
computer science crazy
Super Moderator

Posts: 3,048
Joined: Dec 2008
03-09-2009, 05:24 PM

Adaptive Partition Scheduler

Adaptive Partition Schedulers are a relatively new type of partition scheduler, pioneered with the most recent version of the QNX operating system. Adaptive Partitioning (or AP) allows the real-time system designer to request that a percentage of processing resources be reserved for a particular subsystem (group of threads and/or processes). The operating systems priority driven pre-emptive scheduler will behave in the same way that a non-AP system would until the system is overloaded (i.e. system-wide there is more computation to perform, than the processor is capable of sustaining over the long term). During overload, the AP scheduler enforces hard limits on total run-time for the subsystems within a partition (as dictated by the allocated percentage of processor bandwidth for the particular partition). If the system is not overloaded, a partition that is allocated (for example) 10% of the processor bandwidth, can, in fact, use more than 10%, as it will borrow from the spare budget of other partitions (but will be required to pay it back later). This is very useful for the non real-time subsystems that experience variable load, since these subsystems can make use of spare budget from hard real-time partitions in order to make more forward progress than they would in a Fixed Partition Scheduler such as ARINC-653, but without impacting the hard real-time subsystems deadlines.
Use Search at wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: compulsory partition in linux with ppt, industrial power scheduler using microcontroller, scheduler, qnx schulung, seminar adaptive partition scheduler, virtual memory partition in mobile ppt, pf scheduler code matlab,

Quick Reply
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
Last Post: seminar paper
  Adaptive Sequential Prediction of Multidimensional Signals seminar paper 0 436 27-02-2012, 04:32 PM
Last Post: seminar paper
  Reliable Adaptive Modulation and Interference Mitigation for Mobile Radio Slow Freque project report helper 4 1,665 21-02-2011, 11:17 AM
Last Post: dharani_papudesi
  Pheromone based adaptive routing and replication for fast lookups in a distributed seminar presentation 0 668 19-05-2010, 09:41 PM
Last Post: seminar presentation