Hi all, I am posting this in continuation to discussion about dual core processors in the following link:
Since I did not get any replies on my last posting regarding this discussion,I am reposting it here.Take the below query as continuation of discussion held in the thread link mentioned above.
Thanks for all your inputs and a healthier discussion.I am collating all I understood from this discussion:1)Real advantage of dual core processors are parallel processing 2)Its not fully in use into embedded system as compared to desktop pcs. 3)The main capability for an OS to run in a multicore system is to enable parallel processing.Mainly to schedule threads(or tasks in my vxworks world I use here) parallely. 4)Main problem in such a parallel processing OS is in taking overhead in handling synchronisation and communication objects between 2 cores.
I believe I have understood it correctly.While I can understand the above things,out of curiosity I have the doubt:
I have a belief that satellite imaging systems are real time and the moment you sense an object you develop an image in real time.This definitely will be huge data may be running in GBs!How has embedded world handled such an application without dual cores?Can dual cores be used in such situation and would I get benefits from this? Correct me If am wrong,some how I have a feeling that co processors are similar to dual cores.If thats correct,there are many embedded applications using math co processor which case I can conclude dual cores are not something new for embedded world.
Looking farward for further inputs and advanced thanks to you all,