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MDEV-7899: 10.1 is 3% slower than 10.0 in OLTP RO

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- Remove ANALYZE's timing code off the the execution path of regular
  SELECTs.
- Improve the tracker that tracks counts/execution times of SELECTs or
  DML statements:
  = regular execution just increments counters
  = ANALYZE will also collect timings.
This commit is contained in:
Sergei Petrunia
2015-04-07 01:29:17 +03:00
parent 2936fb127d
commit 2af935c8ec
10 changed files with 105 additions and 70 deletions
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5
sql/handler.h
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@ -4210,12 +4210,13 @@ inline const char *table_case_name(HA_CREATE_INFO *info, const char *name)
#define TABLE_IO_WAIT(TRACKER, PSI, OP, INDEX, FLAGS, PAYLOAD) \
{ \
if (unlikely(tracker)) \
Exec_time_tracker *this_tracker; \
if (unlikely((this_tracker= tracker))) \
tracker->start_tracking(); \
\
MYSQL_TABLE_IO_WAIT(PSI, OP, INDEX, FLAGS, PAYLOAD); \
\
if (unlikely(tracker)) \
if (unlikely(this_tracker)) \
tracker->stop_tracking(); \
}