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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2020-02-12 14:45:21 +0200 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2020-02-12 14:45:21 +0200 |
| commit | 1a6f708ec594ac0ae2dd30db926ab07b100fa24b (patch) | |
| tree | 94a3de08048179233b61d203376d251d7d3f5de2 /mysql-test/suite/innodb_i_s | |
| parent | 0448c614c8ffb44868619d5e7015caaee0f72b4c (diff) | |
| download | mariadb-git-1a6f708ec594ac0ae2dd30db926ab07b100fa24b.tar.gz | |
MDEV-15058: Deprecate and ignore innodb_buffer_pool_instances
Our benchmarking efforts indicate that the reasons for splitting the
buf_pool in commit c18084f71b02ea707c6461353e6cfc15d7553bc6
have mostly gone away, possibly as a result of
mysql/mysql-server@ce6109ebfdedfdf185e391a0c97dc6d33867ed78
or similar work.
Only in one write-heavy benchmark where the working set size is
ten times the buffer pool size, the buf_pool->mutex would be
less contended with 4 buffer pool instances than with 1 instance,
in buf_page_io_complete(). That contention could be alleviated
further by making more use of std::atomic and by splitting
buf_pool_t::mutex further (MDEV-15053).
We will deprecate and ignore the following parameters:
innodb_buffer_pool_instances
innodb_page_cleaners
There will be only one buffer pool and one page cleaner task.
In a number of INFORMATION_SCHEMA views, columns that indicated
the buffer pool instance will be removed:
information_schema.innodb_buffer_page.pool_id
information_schema.innodb_buffer_page_lru.pool_id
information_schema.innodb_buffer_pool_stats.pool_id
information_schema.innodb_cmpmem.buffer_pool_instance
information_schema.innodb_cmpmem_reset.buffer_pool_instance
Diffstat (limited to 'mysql-test/suite/innodb_i_s')
5 files changed, 0 insertions, 5 deletions
diff --git a/mysql-test/suite/innodb_i_s/innodb_buffer_page.result b/mysql-test/suite/innodb_i_s/innodb_buffer_page.result index 3ef5608e155..a212460457c 100644 --- a/mysql-test/suite/innodb_i_s/innodb_buffer_page.result +++ b/mysql-test/suite/innodb_i_s/innodb_buffer_page.result @@ -1,7 +1,6 @@ SHOW CREATE TABLE INFORMATION_SCHEMA.INNODB_BUFFER_PAGE; Table Create Table INNODB_BUFFER_PAGE CREATE TEMPORARY TABLE `INNODB_BUFFER_PAGE` ( - `POOL_ID` int(11) unsigned NOT NULL DEFAULT 0, `BLOCK_ID` bigint(21) unsigned NOT NULL DEFAULT 0, `SPACE` int(11) unsigned NOT NULL DEFAULT 0, `PAGE_NUMBER` int(11) unsigned NOT NULL DEFAULT 0, diff --git a/mysql-test/suite/innodb_i_s/innodb_buffer_page_lru.result b/mysql-test/suite/innodb_i_s/innodb_buffer_page_lru.result index 73871eb2eda..cfdb526663b 100644 --- a/mysql-test/suite/innodb_i_s/innodb_buffer_page_lru.result +++ b/mysql-test/suite/innodb_i_s/innodb_buffer_page_lru.result @@ -1,7 +1,6 @@ SHOW CREATE TABLE INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRU; Table Create Table INNODB_BUFFER_PAGE_LRU CREATE TEMPORARY TABLE `INNODB_BUFFER_PAGE_LRU` ( - `POOL_ID` int(11) unsigned NOT NULL DEFAULT 0, `LRU_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `SPACE` int(11) unsigned NOT NULL DEFAULT 0, `PAGE_NUMBER` int(11) unsigned NOT NULL DEFAULT 0, diff --git a/mysql-test/suite/innodb_i_s/innodb_buffer_pool_stats.result b/mysql-test/suite/innodb_i_s/innodb_buffer_pool_stats.result index be5c31a6b57..7282b8e97d7 100644 --- a/mysql-test/suite/innodb_i_s/innodb_buffer_pool_stats.result +++ b/mysql-test/suite/innodb_i_s/innodb_buffer_pool_stats.result @@ -1,7 +1,6 @@ SHOW CREATE TABLE INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS; Table Create Table INNODB_BUFFER_POOL_STATS CREATE TEMPORARY TABLE `INNODB_BUFFER_POOL_STATS` ( - `POOL_ID` int(11) unsigned NOT NULL DEFAULT 0, `POOL_SIZE` bigint(21) unsigned NOT NULL DEFAULT 0, `FREE_BUFFERS` bigint(21) unsigned NOT NULL DEFAULT 0, `DATABASE_PAGES` bigint(21) unsigned NOT NULL DEFAULT 0, diff --git a/mysql-test/suite/innodb_i_s/innodb_cmpmem.result b/mysql-test/suite/innodb_i_s/innodb_cmpmem.result index e1dd5d0a314..adb80fe4c39 100644 --- a/mysql-test/suite/innodb_i_s/innodb_cmpmem.result +++ b/mysql-test/suite/innodb_i_s/innodb_cmpmem.result @@ -2,7 +2,6 @@ SHOW CREATE TABLE INFORMATION_SCHEMA.INNODB_CMPMEM; Table Create Table INNODB_CMPMEM CREATE TEMPORARY TABLE `INNODB_CMPMEM` ( `page_size` int(5) NOT NULL DEFAULT 0, - `buffer_pool_instance` int(11) NOT NULL DEFAULT 0, `pages_used` int(11) NOT NULL DEFAULT 0, `pages_free` int(11) NOT NULL DEFAULT 0, `relocation_ops` bigint(21) NOT NULL DEFAULT 0, diff --git a/mysql-test/suite/innodb_i_s/innodb_cmpmem_reset.result b/mysql-test/suite/innodb_i_s/innodb_cmpmem_reset.result index 178cd244f9a..3eea4c2e265 100644 --- a/mysql-test/suite/innodb_i_s/innodb_cmpmem_reset.result +++ b/mysql-test/suite/innodb_i_s/innodb_cmpmem_reset.result @@ -2,7 +2,6 @@ SHOW CREATE TABLE INFORMATION_SCHEMA.INNODB_CMPMEM_RESET; Table Create Table INNODB_CMPMEM_RESET CREATE TEMPORARY TABLE `INNODB_CMPMEM_RESET` ( `page_size` int(5) NOT NULL DEFAULT 0, - `buffer_pool_instance` int(11) NOT NULL DEFAULT 0, `pages_used` int(11) NOT NULL DEFAULT 0, `pages_free` int(11) NOT NULL DEFAULT 0, `relocation_ops` bigint(21) NOT NULL DEFAULT 0, |