Memory Allocation
Memory allocation is more critical in an RTOS than in other operating systems.
First, speed of allocation is important. A standard memory allocation scheme scans a linked list of indeterminate length to find a suitable free memory block. This is unacceptable in an RTOS since memory allocation has to occur within a certain amount of time.
The simple fixed-size-blocks algorithm works quite well for simple embedded systems because of its low overhead.
Read more about this topic: Real-time Operating System
Famous quotes containing the word memory:
“In excited conversation we have glimpses of the universe, hints of power native to the soul, far-darting lights and shadows of an Andes landscape, such as we can hardly attain in lone meditation. Here are oracles sometimes profusely given, to which the memory goes back in barren hours.”
—Ralph Waldo Emerson (1803–1882)