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Diffstat (limited to 'storage/xtradb/include/buf0flu.h')
| -rw-r--r-- | storage/xtradb/include/buf0flu.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/storage/xtradb/include/buf0flu.h b/storage/xtradb/include/buf0flu.h index 87ce7d88bdf..c8a329251fa 100644 --- a/storage/xtradb/include/buf0flu.h +++ b/storage/xtradb/include/buf0flu.h @@ -312,6 +312,12 @@ buf_flush_flush_list_in_progress(void) /*==================================*/ __attribute__((warn_unused_result)); +/** If LRU list of a buf_pool is less than this size then LRU eviction +should not happen. This is because when we do LRU flushing we also put +the blocks on free list. If LRU list is very small then we can end up +in thrashing. */ +#define BUF_LRU_MIN_LEN 256 + /******************************************************************//** Start a buffer flush batch for LRU or flush list */ ibool |