You don't have to worry about dozens of other applications fragmenting your memory. You keep your threads neat and your memory neat, and you don't have to worr

You don't have to worry about dozens of other applications fragmenting your memory. You keep your threads neat and your memory neat, and you don't have to worry about failed allocations. Another reason to keep memory contiguous is that fragmentation can be much more punishing (sometimes), especially when latency is important. On large devices it doesn't matter much if you're under-utilizing the CPU while waiting for RAM, because the OS will do other things and then let you do a lot of work all at once. Embedded processors will have nothing else to do.