diff options
| author | Monty <monty@mariadb.org> | 2016-02-01 12:45:39 +0200 |
|---|---|---|
| committer | Monty <monty@mariadb.org> | 2016-02-07 10:34:03 +0200 |
| commit | 3d4a7390c1a94ef6e07b04b52ea94a95878cda1b (patch) | |
| tree | a53179de37b318e27e48546ed3bc8a723148104a /libmysqld | |
| parent | 076aa182c2d2ee67c233d0e79c900dfba6f593c1 (diff) | |
| download | mariadb-git-3d4a7390c1a94ef6e07b04b52ea94a95878cda1b.tar.gz | |
MDEV-6150 Speed up connection speed by moving creation of THD to new thread
Creating a CONNECT object on client connect and pass this to the working thread which creates the THD.
Split LOCK_thread_count to different mutexes
Added LOCK_thread_start to syncronize threads
Moved most usage of LOCK_thread_count to dedicated functions
Use next_thread_id() instead of thread_id++
Other things:
- Thread id now starts from 1 instead of 2
- Added cast for thread_id as thread id is now of type my_thread_id
- Made THD->host const (To ensure it's not changed)
- Removed some DBUG_PRINT() about entering/exiting mutex as these was already logged by mutex code
- Fixed that aborted_connects and connection_errors_internal are counted in all cases
- Don't take locks for current_linfo when we set it (not needed as it was 0 before)
Diffstat (limited to 'libmysqld')
| -rw-r--r-- | libmysqld/lib_sql.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libmysqld/lib_sql.cc b/libmysqld/lib_sql.cc index 5035064b8e0..1156d85bf83 100644 --- a/libmysqld/lib_sql.cc +++ b/libmysqld/lib_sql.cc @@ -664,7 +664,7 @@ void init_embedded_mysql(MYSQL *mysql, int client_flag) void *create_embedded_thd(int client_flag) { THD * thd= new THD; - thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; + thd->thread_id= thd->variables.pseudo_thread_id= next_thread_id(); thd->thread_stack= (char*) &thd; if (thd->store_globals()) |