What is SMP in CPU?
SMP (symmetric multiprocessing) is the processing of programs by multiple processors that share a common operating system and memory. In symmetric (or “tightly coupled”) multiprocessing, the processors share memory and the I/O bus or data path. A single copy of the operating system is in charge of all the processors.
Is there a motherboard that supports both Intel and AMD?
No, there cannot be a motherboard that supports both Intel and AMD processors. Since both processors use different sockets, chipset and ways to communicate with the chipset and memory.
Why SMP systems that uses multicore processors are faster?
SMP systems that use multicore processors are faster and consume less power than systems in which each processor has its own physical chip. To solve this problem recent hardware designs have implemented multithreaded processor cores in which two or more hardware threads are assigned to each core.
What are the three advantages and one disadvantage of multiprocessor systems?
Even though multiprocessor systems are cheaper in the long run than using multiple computer systems, still they are quite expensive. It is much cheaper to buy a simple single processor system than a multiprocessor system. There are multiple processors in a multiprocessor system that share peripherals, memory etc.
Which of the following are the drawbacks of SMP?
Disadvantages of Symmetric Multiprocessing This leads to a complicated operating system that is difficult to design and manage. All the processors in symmetric multiprocessing system are connected to the same main memory. So a large main memory is required to accommodate all these processors.
Is symmetric or asymmetric multiprocessing better?
In symmetric multiprocessing, all the processors are treated equally. Tasks of the operating system are done by master processor. No Communication between Processors as they are controlled by the master processor. Asymmetric multiprocessing systems are cheaper.
What is the difference between symmetric and asymmetric multiprocessing?
The main difference between symmetric and asymmetric multiprocessing is that, in symmetric multiprocessing, the CPUs are identical and they share the main memory while, in asymmetric multiprocessing, the CPUs are not identical and they follow slave-master relationship.
What is microkernel OS?
In computer science, a microkernel (often abbreviated as μ-kernel) is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system (OS). These mechanisms include low-level address space management, thread management, and inter-process communication (IPC).
What is microkernel approach?
The microkernel approach is to define a very simple abstraction over the hardware, with a set of primitives or system calls to implement minimal OS services such as thread management, address spaces and interprocess communication. Structure of monolithic and microkernel-based operating systems, respectively.
Is Ubuntu a microkernel?
Those modules are still running in the kernel space and not in user space, so the kernel architecture is still monolithic. Ubuntu is a GNU/linux distribution. That means, in particular, that it uses the linux kernel. The linux kernel is considered a monolithic kernel.
Is Windows kernel based on Unix?
This decision was made back in the early days of DOS, and later versions of Windows inherited it, just as BSD, Linux, Mac OS X, and other Unix-like operating systems inherited many aspects of Unix’s design. All of Microsoft’s operating systems are based on the Windows NT kernel today.
What kernel does Apple use?
XNU
Is Windows 10 monolithic or microkernel?
Like most Unix systems, Windows is a monolithic operating system. Why? Because the kernel mode protected memory space is shared by the operating system and device driver code.
What is a microkernel architecture?
A microkernel architecture is called a plugin architecture because of the way capabilities and functionality are added to a minimal core OS. They’re an efficient way to achieve application customization and can offer software lifecycle benefits.
What is monolithic and microkernel?
Monolithic kernels are big in size, while microkernels are small in size – they usually fit into the processor’s L1 cache (first generation microkernels). In monolithic kernels, the device drivers reside in the kernel space while in the microkernels the device drivers are user-space.
Which are the disadvantages of a microkernel?
Disadvantage of Microkernel
- Providing services in a microkernel system are expensive compared to the normal monolithic system.
- Context switch or a function call needed when the drivers are implemented as procedures or processes, respectively.
Why is monolithic kernel faster?
The execution of monolithic kernel is faster as the communication between application and hardware is established using the system call. On the other hands, the execution of microkernel is slow as the communication between application and hardware of the system is established through message passing.