buf_pool_stat_t Struct Reference

The buffer pool statistics structure. More...

#include <buf0buf.h>

Public Attributes
ulint	n_page_gets
ulint	n_pages_read
ulint	n_pages_written
ulint	n_pages_created
ulint	n_ra_pages_read_rnd
ulint	n_ra_pages_read
ulint	n_ra_pages_evicted
ulint	n_pages_made_young
ulint	n_pages_not_made_young
ulint	LRU_bytes
ulint	flush_list_bytes

Detailed Description

The buffer pool statistics structure.

Definition at line 1750 of file buf0buf.h.

Member Data Documentation

ulint buf_pool_stat_t::flush_list_bytes

flush_list size in bytes

Definition at line 1775 of file buf0buf.h.

ulint buf_pool_stat_t::LRU_bytes

LRU size in bytes

Definition at line 1774 of file buf0buf.h.

ulint buf_pool_stat_t::n_page_gets

number of page gets performed; also successful searches through the adaptive hash index are counted as page gets; this field is NOT protected by the buffer pool mutex

Definition at line 1751 of file buf0buf.h.

ulint buf_pool_stat_t::n_pages_created

number of pages created in the pool with no read

Definition at line 1759 of file buf0buf.h.

ulint buf_pool_stat_t::n_pages_made_young

number of pages made young, in calls to buf_LRU_make_block_young()

Definition at line 1768 of file buf0buf.h.

ulint buf_pool_stat_t::n_pages_not_made_young

number of pages not made young because the first access was not long enough ago, in buf_page_peek_if_too_old()

Definition at line 1770 of file buf0buf.h.

ulint buf_pool_stat_t::n_pages_read

number read operations

Definition at line 1757 of file buf0buf.h.

ulint buf_pool_stat_t::n_pages_written

number write operations

Definition at line 1758 of file buf0buf.h.

ulint buf_pool_stat_t::n_ra_pages_evicted

number of read ahead pages that are evicted without being accessed

Definition at line 1765 of file buf0buf.h.

ulint buf_pool_stat_t::n_ra_pages_read

number of pages read in as part of read ahead

Definition at line 1763 of file buf0buf.h.

ulint buf_pool_stat_t::n_ra_pages_read_rnd

number of pages read in as part of random read ahead

Definition at line 1761 of file buf0buf.h.

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The documentation for this struct was generated from the following file:

• storage/innobase/include/buf0buf.h