A process is an instance of a computer program. Each process has its own address space and executes concurrently with other processes. If the system has multiple CPU cores, two or more processes may execute simultaneously.
Every process has at least one thread of execution, the main thread. Any thread within a process can instantiate a new thread of execution within that same process. Every thread shares the same address space as the process itself, however each thread has its own local stack. This makes it possible for two threads to call the same function concurrently. If the system has multiple CPU cores, two or more threads within the same processes may execute simultaneously.
Programmers use multiple thread to divide complex tasks into simpler tasks that can be executed concurrently. As a simple example, suppose we must search an unsorted array of 1 million elements. We could use a single thread and search the entire array from beginning to end but there's a 50/50 chance the element we are looking for resides in the second half of the array which means that we'd need to search through 500,000 elements on average. By dividing the array between two worker threads we should get a result twice as quickly because each thread now only searches an average of 250,000 elements. It therefore follows that the more threads we utilise, the quicker we should get a result, but that's only true up to a point because the number of threads we can physically execute simultaneously depends on the number of CPU cores available. If all threads execute upon the same core then there is no point in multi-threading this particular task. Nevertheless, the task is likely to take some time to complete so it would still be beneficial to delegate the task to at least one worker thread.
For example, if the main thread manages a message queue, the worker thread can post messages to the queue to keep the main thread abreast of its progress. Meanwhile, the user can continue to interact with the process, posting messages to the queue to perhaps initiate another search (in another thread). In this way the main thread's task is reduced to nothing more than processing messages and delegating tasks to worker threads. This is clearly an over-simplification, however it's this type of multi-threading that makes it possible for a graphical user interface to remain responsive to user interactions while time-consuming tasks are being carried out in the background by worker threads.
Every process has at least one thread, the main thread. However threads can spawn new threads. Every thread in a process shares the same virtual memory space but has its own stack. Threads allow a process to perform concurrent tasks.
-> Difference between process based and thread based multitasking: 1) threads share the same address space where as process doesn't. 2) context switching between threads is usually less expensive than between processes. 3) cost of communication between threads is relatively low.
A thread is a sub process in other words one process can contain multiple threads.
Basically no difference, except that process can use many threads; thread can use only one.
operating thread is nothing but a simple programs or some information is provided in a row where process threads are the which a single sequence stream within a process
The same metaphor: the difference of a person (thread) and a family (process) A process has at least 1 thread and may have many threads, while 1 thread must live within a process
One difference is that, when the main program terminates, all its threads are terminated. It is not the case for processes, because they are kind independent of the parent. When the parent terminates, the process keeps going unless the parent waits for it to die.
Plumbing pipe threads are squared and conduit pipe threads are tapered.
The memory space, where a given application is executed is called - process. A Process is the memory set aside for an application to be executed in. Within this process the thing, which is really executed is the thread. The key difference is that processes are fully isolated from each other; threads share (heap) memory with other threads running in the same application. Threads share the address space of the process that created it; processes have their own address. Threads have direct access to the data segment of its process; processes have their own copy of the data segment of the parent process. Threads can directly communicate with other threads of its process; processes must use inter-process communication to communicate with sibling processes. Threads have almost no overhead; processes have considerable overhead. New threads are easily created; new processes require duplication of the parent process. Threads can exercise considerable control over threads of the same process; processes can only exercise control over child processes. A great answer to the question can also be found here: (link moved to link section)
Water pipe threads are tapered, electrical pipe is not tapered.
Process --1------------m-- Threads 1 process to many threads Bring up your Task Manager (if you are using a windows), Performance tap, you can see the number of process and the number of threads, usually the number of threads is a lot higher than the number of processes.
screw thread are single threads which means they are not double
Processes are made of threads; threads within a process can be handled by different processors to improve server performance.
Capillitial threads are very minute forms of slime mold. A columella has numerous threads radiating from all sections of the cell.
Its really so easy to distinguish between the concurrent & parallel threads that A parallel thread is the thread maintained the parallel processing system including the process sheduling system is quite murcible. Where as the concurrent threading is the way of manupulation of a thread using simultaneous process threading. It would be be quite better if the book named "Galvin & Siberscartz" book of "Operating System" the chapter process & threads would be followed for maximum details.
NPT = pipe Briggs standard = Pipe NFT and NFC and ASAE = bolt
Explain the difference between the elements of the communication process and the communication process
What is a difference between product metrics and process metrics
What is the difference between process skills and tasks skills?
What the difference between process piping and power piping?
A process is a collection of threads that share the same virtual memory. A process has at least one thread of execution, and a thread always run in a process context. Thread is used to allocate and distribute the CPU work scheduling, many programs a re assigned to different threads and they are most of the time independent of each other. Eg: We can open many instance of MS word and MS Excel in our PC, all are monitored and managed by threads. Process is nothing but a program in execution, many threads can run under a process or many thread can combined under the one thread.
A cagoule is more puffy and has threads usually hanging out
i7 has 4 cores 8 threads, i5 has 4 cores 4 threads
what is the difference between license and patent