mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-05-07 07:35:32 +02:00
Code Issues Projects Releases Packages Wiki Activity

Bug#13704145: ELIMINATE LRU SCAN WHEN DROPPING A TABLE

Browse source 
rb://942
approved by: Marko Makela

We don't need to scan LRU for dropping AHI entries when DROPing a table.
AHI entries are already removed when we free up extents for the btree.
This commit is contained in:
Inaam Rana 2012-03-26 09:45:01 -04:00
commit 5352a76134
6 changed files with 365 additions and 91 deletions
Download patch file Download diff file Expand all files Collapse all files

11
storage/innobase/include/buf0lru.h
View file

@ -64,15 +64,14 @@ These are low-level functions
#define BUF_LRU_FREE_SEARCH_LEN(b) (5 + 2 * BUF_READ_AHEAD_AREA(b))
/******************************************************************//**
Invalidates all pages belonging to a given tablespace when we are deleting
the data file(s) of that tablespace. A PROBLEM: if readahead is being started,
what guarantees that it will not try to read in pages after this operation has
completed? */
Removes all pages belonging to a given tablespace. */
UNIV_INTERN
void
buf_LRU_invalidate_tablespace(
buf_LRU_flush_or_remove_pages(
/*==========================*/
ulint id); /*!< in: space id */
ulint id, /*!< in: space id */
enum buf_remove_t buf_remove);/*!< in: remove or flush
strategy */
#if defined UNIV_DEBUG || defined UNIV_BUF_DEBUG
/********************************************************************//**
Insert a compressed block into buf_pool->zip_clean in the LRU order. */