PS INNODB MUTEX Also needs Source File and Line Number

[Jervin R]

From PS:

| InnoDB | &buf_pool->LRU_list_mutex | os_waits=34 |
| InnoDB | &buf_pool->flush_list_mutex | os_waits=14 |
| InnoDB | &buf_pool->flush_state_mutex | os_waits=233 |
| InnoDB | &buf_pool->zip_mutex | os_waits=10 |
| InnoDB | &buf_pool->free_list_mutex | os_waits=1 |
| InnoDB | &buf_pool->LRU_list_mutex | os_waits=33 |
| InnoDB | &buf_pool->flush_list_mutex | os_waits=17 |
| InnoDB | &buf_pool->flush_state_mutex | os_waits=228 |

From upstream:

| InnoDB | buf0buf.cc:1290 | os_waits=144 |
| InnoDB | buf0buf.cc:1244 | os_waits=2593648 |
| InnoDB | buf0buf.cc:1242 | os_waits=12246520 |
| InnoDB | buf0buf.cc:1290 | os_waits=188 |
| InnoDB | buf0buf.cc:1244 | os_waits=2600430 |
| InnoDB | buf0buf.cc:1242 | os_waits=12439595 |

Neither is very useful at first glance, if we can add the source file and line number on the PS output it would be a winner :)

[Valerii Kravchuk (valerii-kravchuk)]

What is the point to reference file name and line number if it's the line where mutex is created, and it's usually needed only to find out mutext name (that we already see in current PS implementation)? To read comments before/around this line? Something else?

[Launchpad Janitor (janitor)]

[Expired for Percona Server because there has been no activity for 60 days.]

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-3082