AVL Tree Loop vs Recusrion realisation methods The loop method is better than recursion. [+] No stack overflow with big number of items. [+] Lower performance costs than the recursion method. [-] It uses an extra field in node for store a link to parent. The recursion method is bad: [-] It is the cause of stack overflow with big number of items. ERROR_CODE: (NTSTATUS) 0xc00000fd - A new guard page for the stack cannot be created. [-] It requires additional performance costs for calling the functions of forming a new function frame and placing the return address in the stack.