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:
“Perhaps a man like you can’t realize what it is to have a conscience and no memory at all. Do you imagine it’s pleasant to be ashamed of something you can’t even remember?”
—Orson Welles (1915–1985)
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