database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

MDEV-28537 Unused or useless InnoDB counters num_index_pages_written, num_non_index_pages_written

Browse Source 
The counters were added in commit 5e55d1ced5
and any code to update them was
inadvertently removed in commit 2e814d4702
when applying InnoDB changes from MySQL 5.7.

Let us remove these counters that never reported anything useful. If such
statistics are really needed in a special case, they can be obtained by
instrumenting the code by some means, such as eBPF or a source code patch.
This commit is contained in:
Marko Mäkelä
2022-05-16 13:41:53 +03:00
parent 730eb1c4be
commit 4e1bf2bb23
8 changed files with 2 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mysql-test/suite/innodb/r/innodb_skip_innodb_is_tables.result
View File

@ -71,8 +71,6 @@ buffer_pool_bytes_dirty buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL
buffer_pool_pages_free buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled value Buffer pages currently free (innodb_buffer_pool_pages_free)
buffer_pages_created buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled status_counter Number of pages created (innodb_pages_created)
buffer_pages_written buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled status_counter Number of pages written (innodb_pages_written)
buffer_index_pages_written buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled status_counter Number of index pages written (innodb_index_pages_written)
buffer_non_index_pages_written buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled status_counter Number of non index pages written (innodb_non_index_pages_written)
buffer_pages_read buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled status_counter Number of pages read (innodb_pages_read)
buffer_pages0_read buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled status_counter Number of page 0 read (innodb_pages0_read)
buffer_index_sec_rec_cluster_reads buffer 0 NULL NULL NULL 0 NULL NULL NULL NULL NULL NULL NULL disabled status_counter Number of secondary record reads triggered cluster read