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MDEV-35720 Add query_time to statistics

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Added Query_time (total time spent running queries) to status_variables.

Other things:
- Added SHOW_MICROSECOND_STATUS type that shows an ulonglong variable
  in microseconds converted to a double (in seconds).
- Changed Busy_time and Cpu_time to use SHOW_MICROSECOND_STATUS, which
  simplified the code and avoids some double divisions for each query.

Reviewed-by: Sergei Golubchik <serg@mariadb.org>
This commit is contained in:
Monty
2024-12-27 19:26:55 +02:00
parent ed5bba8a32
commit 95975b921e
7 changed files with 99 additions and 9 deletions
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2
sql/sql_plugin.h
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@@ -26,7 +26,7 @@
SHOW_LONG_NOFLUSH, SHOW_LEX_STRING, SHOW_ATOMIC_COUNTER_UINT32_T, \
/* SHOW_*_STATUS must be at the end, SHOW_LONG_STATUS being first */ \
SHOW_LONG_STATUS, SHOW_DOUBLE_STATUS, SHOW_LONGLONG_STATUS, \
SHOW_UINT32_STATUS
SHOW_UINT32_STATUS, SHOW_MICROSECOND_STATUS,
#include "mariadb.h"
#undef SHOW_always_last