Comments (3)
Adjacent free memory blocks are merged together during a subsequent allocation search for a large enough free memory block. This process is called defragmentation.
https://learn.microsoft.com/en-us/azure/rtos/threadx/chapter3#memory-byte-pools
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As @xray-bit says, the defragmentation happens upon allocation scheme and not free scheme.
This is because in free time there is no need to waste time to look on other blocks, while in allocation time we anyway go block after block to find one that is big enough so meanwhile we also merge consecutive free blocks till we find big enough block and stop.
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OK, thanks for your reply.
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