Bug #71842 Add P_S file instrumentation to the audit log plugin

Description:
The audit log plugin doesn't seem to have any P_S instrumentation.

Related to: Bug #71840

How to repeat:
select * from events_waits_summary_global_by_event_name where event_name like '%audit%'

select * from file_summary_by_instance where file_name like '%audit%'

Suggested fix:
Add P_S instrumentation

Add auditlog tag

There is some info, but it's not really obvious what they measure.

mysql> select * from events_waits_summary_global_by_event_name where event_name like '%/alog/%';
+-----------------------------------+------------+-----------------+----------------+----------------+----------------+
| EVENT_NAME                        | COUNT_STAR | SUM_TIMER_WAIT  | MIN_TIMER_WAIT | AVG_TIMER_WAIT | MAX_TIMER_WAIT |
+-----------------------------------+------------+-----------------+----------------+----------------+----------------+
| wait/synch/mutex/alog/LOCK_block  |       7074 |       759564542 |          22506 |         107074 |        1445840 |
| wait/synch/mutex/alog/LOCK_reopen |          0 |               0 |              0 |              0 |              0 |
| wait/synch/cond/alog/COND_data    |       2274 | 392049513716597 |              0 |   172405238951 |  1013510086281 |
| wait/synch/cond/alog/COND_space   |          0 |               0 |              0 |              0 |              0 |
| wait/synch/cond/alog/COND_idle    |          0 |               0 |              0 |              0 |              0 |
+-----------------------------------+------------+-----------------+----------------+----------------+----------------+
5 rows in set (0.00 sec)

Also I would expect something like 'wait/io/file/audit_log' for something that can be writing lots of data (and might do so synchronously)

Hello Daniel,

Thank you for the bug report.
Verified as described.

Thanks,
Umesh

Verified by code review that file io in the audit plugin is not instrumented.

Changing category to Logging.