diff options
Diffstat (limited to 'storage/xtradb/include/buf0buf.h')
| -rw-r--r-- | storage/xtradb/include/buf0buf.h | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/storage/xtradb/include/buf0buf.h b/storage/xtradb/include/buf0buf.h index 1a4990be69f..d48c7f0212f 100644 --- a/storage/xtradb/include/buf0buf.h +++ b/storage/xtradb/include/buf0buf.h @@ -68,7 +68,10 @@ Created 11/5/1995 Heikki Tuuri position of the block. */ /* @} */ -#define MAX_BUFFER_POOLS 64 /*!< The maximum number of buffer +#define MAX_BUFFER_POOLS_BITS 6 /*!< Number of bits to representing + a buffer pool ID */ +#define MAX_BUFFER_POOLS (1 << MAX_BUFFER_POOLS_BITS) + /*!< The maximum number of buffer pools that can be defined */ #define BUF_POOL_WATCH_SIZE 1 /*!< Maximum number of concurrent @@ -233,6 +236,7 @@ ulint buf_pool_init( /*=========*/ ulint size, /*!< in: Size of the total pool in bytes */ + ibool populate, /*!< in: Force virtual page preallocation */ ulint n_instances); /*!< in: Number of instances */ /********************************************************************//** Frees the buffer pool at shutdown. This must not be invoked before @@ -778,6 +782,18 @@ void buf_print_io( /*=========*/ FILE* file); /*!< in: file where to print */ +/*******************************************************************//** +Collect buffer pool stats information for a buffer pool. Also +record aggregated stats if there are more than one buffer pool +in the server */ +UNIV_INTERN +void +buf_stats_get_pool_info( +/*====================*/ + buf_pool_t* buf_pool, /*!< in: buffer pool */ + ulint pool_id, /*!< in: buffer pool ID */ + buf_pool_info_t* all_pool_info); /*!< in/out: buffer pool info + to fill */ /*********************************************************************//** Returns the ratio in percents of modified pages in the buffer pool / database pages in the buffer pool. @@ -1364,12 +1380,25 @@ void buf_get_total_stat( /*===============*/ buf_pool_stat_t*tot_stat); /*!< out: buffer pool stats */ +/*********************************************************************//** +Get the nth chunk's buffer block in the specified buffer pool. +@return the nth chunk's buffer block. */ +UNIV_INLINE +buf_block_t* +buf_get_nth_chunk_block( +/*====================*/ + const buf_pool_t* buf_pool, /*!< in: buffer pool instance */ + ulint n, /*!< in: nth chunk in the buffer pool */ + ulint* chunk_size); /*!< in: chunk size */ #endif /* !UNIV_HOTBACKUP */ /** The common buffer control block structure for compressed and uncompressed frames */ +/** Number of bits used for buffer page states. */ +#define BUF_PAGE_STATE_BITS 3 + struct buf_page_struct{ /** @name General fields None of these bit-fields must be modified without holding @@ -1384,7 +1413,8 @@ struct buf_page_struct{ unsigned offset:32; /*!< page number; also protected by buf_pool->mutex. */ - unsigned state:3; /*!< state of the control block; also + unsigned state:BUF_PAGE_STATE_BITS; + /*!< state of the control block; also protected by buf_pool->mutex. State transitions from BUF_BLOCK_READY_FOR_USE to |