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MDEV-28539 Some InnoDB counters are duplicating generic SHOW STATUS

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The InnoDB srv_stats counters
n_rows_updated, n_rows_deleted, n_rows_inserted, and n_rows_read
are duplicating
Handler_update, Handler_delete, Handler_write, and Handler_read_ counters.

Updating those counters is not free, especially because some counters
are furthermore split to distinguish a rare case of modifying tables
in the system schema.
This commit is contained in:
Marko Mäkelä
2022-05-13 16:39:45 +03:00
parent 6b9bba41e8
commit 0dab74ff3f
16 changed files with 6 additions and 882 deletions
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8
mysql-test/suite/innodb/r/innodb_skip_innodb_is_tables.result
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@ -226,14 +226,6 @@ innodb_dict_lru_count_idle server 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NU
innodb_dblwr_writes server 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of doublewrite operations that have been performed (innodb_dblwr_writes)
innodb_dblwr_pages_written server 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of pages that have been written for doublewrite operations (innodb_dblwr_pages_written)
innodb_page_size server 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 value InnoDB page size in bytes (innodb_page_size)
dml_reads dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of rows read
dml_inserts dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of rows inserted
dml_deletes dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of rows deleted
dml_updates dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of rows updated
dml_system_reads dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of system rows read
dml_system_inserts dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of system rows inserted
dml_system_deletes dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of system rows deleted
dml_system_updates dml 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 status_counter Number of system rows updated
ddl_background_drop_indexes ddl 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 counter Number of indexes waiting to be dropped after failed index creation
ddl_online_create_index ddl 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 counter Number of indexes being created online
ddl_pending_alter_table ddl 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL 0 counter Number of ALTER TABLE, CREATE INDEX, DROP INDEX in progress