A Thread and a Process

Question

Hi Ques What is differences between a Thread and a Process ?

Senthilkumar · Answer

Hi The major difference between threads and processes is 1.Threads share the address space of the process that created it; processes have their own address. 2.Threads have direct access to the data segment of its process; processes have their own copy of the data segment of the parent process. 3.Threads can directly communicate with other threads of its process; processes must use interprocess communication to communicate with sibling processes. 4.Threads have almost no overhead; processes have considerable overhead. 5.New threads are easily created; new processes require duplication of the parent process. 6.Threads can exercise considerable control over threads of the same process; processes can only exercise control over child processes. 7.Changes to the main thread (cancellation priority change etc.) may affect the behavior of the other threads of the process; changes to the parent process does not affect child processes.

Jignesh Trivedi · Answer

hi Process is a programe in execution Thread is a separate path of execution Process is an thread under execution means every process runs with in a thread. a process can have multiple thread. Thread are not fully Isolated whereas Process are fully isolated from each other Thread is a Execution instruction. Threads cannot live without a process. hope this help.