Sir,

What did context switch mean?

Regards,
Arunachalam.

The term refers to switching the CPU from running one process to running another.

Hi ,
Context switch means CPU changing from one process/thread to antoher process/thread . During this switching from one process to another it has to save the state of the current active running process so that next time it gets to the same process it can retrive the state and continue . comtext switch may happen if priority of any process in the run queue is greater than the current active running process or if u r using round robin scheduling policy ,if the time slice of the current active running process completes control of the cpu is given to next process in the run queue.

hope u r clear.

sekhar

Hello,
In linux kernel 2.6.25, May i know how the context switching is implemented in the code. I understood that scheduler.c deals with context switching but i am not clear about how does a signal or interrupt cause the CPU to context switch in the kernel code of Linux 2.6.25. It would be helpful if anyone can suggest me the .c files that i have to look into if i want to understand how context switching is done.
Thank you,
Chandan