| InnoDB Plugin
    1.0
    | 

| Data Fields | |
| ulint | size | 
| ulint | max_size | 
| ulint | seg_size | 
| bool | empty | 
| ulint | free_list_len | 
| ulint | height | 
| dict_index_t * | index | 
| ulint | n_merges | 
| ulint | n_merged_ops [IBUF_OP_COUNT] | 
| ulint | n_discarded_ops [IBUF_OP_COUNT] | 
Insert buffer struct
| bool ibuf_t::empty | 
Protected by the page latch of the root page of the insert buffer tree (FSP_IBUF_TREE_ROOT_PAGE_NO). true if and only if the insert buffer tree is empty.
| ulint ibuf_t::free_list_len | 
length of the free list
| ulint ibuf_t::height | 
tree height
| dict_index_t* ibuf_t::index | 
insert buffer index
| ulint ibuf_t::max_size | 
recommended maximum size of the ibuf index tree, in pages
| ulint ibuf_t::n_discarded_ops[IBUF_OP_COUNT] | 
number of operations of each type discarded without merging due to the tablespace being deleted or the index being dropped
| ulint ibuf_t::n_merged_ops[IBUF_OP_COUNT] | 
number of operations of each type merged to index pages
| ulint ibuf_t::n_merges | 
number of pages merged
| ulint ibuf_t::seg_size | 
allocated pages of the file segment containing ibuf header and tree
| ulint ibuf_t::size | 
current size of the ibuf index tree, in pages
 1.8.1.2
 1.8.1.2