diff options
| author | Sergey Vojtovich <svoj@mariadb.org> | 2019-03-18 19:18:54 +0400 |
|---|---|---|
| committer | Sergey Vojtovich <svoj@mariadb.org> | 2019-05-03 16:40:58 +0400 |
| commit | a7adc2ce1680f00635b8241202066fd5542d286f (patch) | |
| tree | 78888bd51d3a47ce3393a4b3aa6728832a7167cc /sql/session_tracker.cc | |
| parent | 47bd06d55ec211bc4d05d616a0833629504c7edf (diff) | |
| download | mariadb-git-a7adc2ce1680f00635b8241202066fd5542d286f.tar.gz | |
Allocate Transaction_state_tracker statically
One less new/delete per connection.
Part of MDEV-14984 - regression in connect performance
Diffstat (limited to 'sql/session_tracker.cc')
| -rw-r--r-- | sql/session_tracker.cc | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/sql/session_tracker.cc b/sql/session_tracker.cc index 868e8295294..2f72b7198f9 100644 --- a/sql/session_tracker.cc +++ b/sql/session_tracker.cc @@ -1345,7 +1345,7 @@ Session_tracker::Session_tracker() m_trackers[SESSION_SYSVARS_TRACKER]= 0; m_trackers[CURRENT_SCHEMA_TRACKER]= ¤t_schema; m_trackers[SESSION_STATE_CHANGE_TRACKER]= &state_change; - m_trackers[TRANSACTION_INFO_TRACKER]= 0; + m_trackers[TRANSACTION_INFO_TRACKER]= &transaction_info; } @@ -1367,8 +1367,6 @@ void Session_tracker::enable(THD *thd) deinit(); m_trackers[SESSION_SYSVARS_TRACKER]= new (std::nothrow) Session_sysvars_tracker(); - m_trackers[TRANSACTION_INFO_TRACKER]= - new (std::nothrow) Transaction_state_tracker; for (int i= 0; i < SESSION_TRACKER_END; i++) m_trackers[i]->enable(thd); |