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mirror of https://github.com/MariaDB/server.git synced 2025-08-07 00:04:31 +03:00

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)
This commit is contained in:
Monty
2016-02-01 12:45:39 +02:00
parent 076aa182c2
commit 3d4a7390c1
50 changed files with 878 additions and 551 deletions

View File

@@ -280,6 +280,12 @@ make_atomic_store(32)
make_atomic_store(64)
make_atomic_store(ptr)
#if SIZEOF_LONG == 4
#define my_atomic_addlong(A,B) my_atomic_add32((int32*) (A), (B))
#else
#define my_atomic_addlong(A,B) my_atomic_add64((int64*) (A), (B))
#endif
#ifdef _atomic_h_cleanup_
#include _atomic_h_cleanup_
#undef _atomic_h_cleanup_