Free RTOS heap_4 with pvPortMalloc allocates memory, if you have Free, don't call prvInsertBlockIntoFreeList, directly inserted into new blank block in this list, because this is the rest of the block, divided into fixed position, and must be with the other piece is not connected, so if we can save time in the traversal of the Free list, modify the have what loophole, the great god, please give advice or comments