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15c936e4b3d151346c027bd4b51b44c826b095b6
mariadb/mysql-test/suite/perfschema/r/all_instances.result
Michael Widenius 615d51b650 Speed up connection time: 
-Change my_rnd() slightly to make it safer if two threads use it at the same time.
-Avoid some sprintf and strmov in vio.
-Changed thread_count to be automically incremented (instead of under LOCK_thread_count).
-Thread cache now uses LOCK_thread_cache instead of LOCK_thread_count.
-Moved delete thd out from LOCK_thread_count.
-Save some mysql_cond_broadcast(&COND_thread_count) calls.
-Removed call to getsockname() during connect.
-Initialize random generator without locks.

Other things:
-Added thread_safe_decrement32() and thread_safe_increment32()
-Removed sql_rnd_with_mutex() and get_thread_running()

Thanks to Yoshinori Matsunobu for the benchmark of connection speed and to
Domas Mituzas for the inspiration for many of the fixes.
 

include/violite.h:
  Change desc to a string pointer
mysql-test/suite/perfschema/r/all_instances.result:
  Added new mutex
mysys/my_rnd.c:
  Change my_rnd() slightly to make it safer if two threads use it at the same time.
sql/event_scheduler.cc:
  Changed thread_count to be automically incremented
  Moved some safe things out from LOCK_thread_count.
  Simplify deleting of THD for running thread.
sql/mysqld.cc:
  Changed thread_count to be automically incremented
  Thread cache now uses LOCK_thread_cache instead of LOCK_thread_count
  Added delete_running_thd()
  Moved delete thd out from LOCK_thread_count
  More DBUG_ENTER
  Only call  mysql_cond_broadcast(&COND_thread_count) if thread_count is 0
  Removed call to getsockname() (old not anymore needed check)
sql/mysqld.h:
  Removed sql_rnd_with_mutex() (not needed anymore)
  Removed not used function get_thread_running()
  Added thread_safe_decrement32() and thread_safe_increment32()
  Simplified dec_thread_running() and inc_thread_running()
sql/sql_class.cc:
  Removed thd_lock_thread_count() and thd_unlock_thread_count()
  Initialize random generator without locks
sql/sql_insert.cc:
  Changed thread_count to be automically incremented
sql/sql_parse.cc:
  Changed thread_count to be automically incremented
vio/vio.c:
  Don't generate 'desc' with sprintf/strmov. Assign a pointer instead.
  (Good enough as this is just for debugging)
2013-03-20 01:46:35 +02:00

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use performance_schema;
select name from mutex_instances
where name not rlike '/(DEBUG_SYNC::mutex)$'
and name != 'wait/synch/mutex/mysys/BITMAP::mutex'
group by name;
name
wait/synch/mutex/archive/archive_mutex
wait/synch/mutex/aria/LOCK_trn_list
wait/synch/mutex/aria/PAGECACHE::cache_lock
wait/synch/mutex/aria/SERVICE_THREAD_CONTROL::LOCK_control
wait/synch/mutex/aria/THR_LOCK_maria
wait/synch/mutex/aria/TRANSLOG_BUFFER::mutex
wait/synch/mutex/aria/TRANSLOG_DESCRIPTOR::dirty_buffer_mask_lock
wait/synch/mutex/aria/TRANSLOG_DESCRIPTOR::file_header_lock
wait/synch/mutex/aria/TRANSLOG_DESCRIPTOR::log_flush_lock
wait/synch/mutex/aria/TRANSLOG_DESCRIPTOR::purger_lock
wait/synch/mutex/aria/TRANSLOG_DESCRIPTOR::unfinished_files_lock
wait/synch/mutex/blackhole/blackhole
wait/synch/mutex/csv/tina
wait/synch/mutex/memory/HP_SHARE::intern_lock
wait/synch/mutex/myisam/MYISAM_SHARE::intern_lock
wait/synch/mutex/mysys/KEY_CACHE::cache_lock
wait/synch/mutex/mysys/LOCK_alarm
wait/synch/mutex/mysys/LOCK_uuid_generator
wait/synch/mutex/mysys/my_thread_var::mutex
wait/synch/mutex/mysys/THR_LOCK::mutex
wait/synch/mutex/mysys/THR_LOCK_charset
wait/synch/mutex/mysys/THR_LOCK_heap
wait/synch/mutex/mysys/THR_LOCK_isam
wait/synch/mutex/mysys/THR_LOCK_lock
wait/synch/mutex/mysys/THR_LOCK_malloc
wait/synch/mutex/mysys/THR_LOCK_myisam
wait/synch/mutex/mysys/THR_LOCK_myisam_mmap
wait/synch/mutex/mysys/THR_LOCK_net
wait/synch/mutex/mysys/THR_LOCK_open
wait/synch/mutex/mysys/THR_LOCK_threads
wait/synch/mutex/mysys/TMPDIR_mutex
wait/synch/mutex/sql/Cversion_lock
wait/synch/mutex/sql/Event_scheduler::LOCK_scheduler_state
wait/synch/mutex/sql/hash_filo::lock
wait/synch/mutex/sql/LOCK_active_mi
wait/synch/mutex/sql/LOCK_audit_mask
wait/synch/mutex/sql/LOCK_commit_ordered
wait/synch/mutex/sql/LOCK_connection_count
wait/synch/mutex/sql/LOCK_crypt
wait/synch/mutex/sql/LOCK_delayed_create
wait/synch/mutex/sql/LOCK_delayed_insert
wait/synch/mutex/sql/LOCK_delayed_status
wait/synch/mutex/sql/LOCK_des_key_file
wait/synch/mutex/sql/LOCK_error_log
wait/synch/mutex/sql/LOCK_error_messages
wait/synch/mutex/sql/LOCK_event_queue
wait/synch/mutex/sql/LOCK_gdl
wait/synch/mutex/sql/LOCK_global_index_stats
wait/synch/mutex/sql/LOCK_global_system_variables
wait/synch/mutex/sql/LOCK_global_table_stats
wait/synch/mutex/sql/LOCK_global_user_client_stats
wait/synch/mutex/sql/LOCK_open
wait/synch/mutex/sql/LOCK_plugin
wait/synch/mutex/sql/LOCK_prepared_stmt_count
wait/synch/mutex/sql/LOCK_prepare_ordered
wait/synch/mutex/sql/LOCK_rpl_status
wait/synch/mutex/sql/LOCK_server_started
wait/synch/mutex/sql/LOCK_slave_list
wait/synch/mutex/sql/LOCK_stats
wait/synch/mutex/sql/LOCK_status
wait/synch/mutex/sql/LOCK_thread_cache
wait/synch/mutex/sql/LOCK_thread_count
wait/synch/mutex/sql/LOCK_user_conn
wait/synch/mutex/sql/LOCK_user_locks
wait/synch/mutex/sql/LOCK_uuid_short_generator
wait/synch/mutex/sql/LOCK_xid_cache
wait/synch/mutex/sql/LOG::LOCK_log
wait/synch/mutex/sql/LOG_INFO::lock
wait/synch/mutex/sql/Master_info::data_lock
wait/synch/mutex/sql/Master_info::run_lock
wait/synch/mutex/sql/Master_info::sleep_lock
wait/synch/mutex/sql/MDL_map::mutex
wait/synch/mutex/sql/MDL_wait::LOCK_wait_status
wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_binlog_background_thread
wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_index
wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_xid_list
wait/synch/mutex/sql/MYSQL_RELAY_LOG::LOCK_index
wait/synch/mutex/sql/Query_cache::structure_guard_mutex
wait/synch/mutex/sql/Relay_log_info::data_lock
wait/synch/mutex/sql/Relay_log_info::log_space_lock
wait/synch/mutex/sql/Relay_log_info::run_lock
wait/synch/mutex/sql/Relay_log_info::sleep_lock
wait/synch/mutex/sql/Slave_reporting_capability::err_lock
wait/synch/mutex/sql/TABLE_SHARE::LOCK_ha_data
wait/synch/mutex/sql/THD::LOCK_thd_data
wait/synch/mutex/sql/THD::LOCK_wakeup_ready
wait/synch/mutex/sql/tz_LOCK
select name from rwlock_instances
where name not in ("wait/synch/rwlock/sql/CRYPTO_dynlock_value::lock")
group by name;
name
wait/synch/rwlock/aria/TRANSLOG_DESCRIPTOR::open_files_lock
wait/synch/rwlock/myisam/MYISAM_SHARE::key_root_lock
wait/synch/rwlock/myisam/MYISAM_SHARE::mmap_lock
wait/synch/rwlock/mysys/SAFE_HASH::mutex
wait/synch/rwlock/sql/LOCK_dboptions
wait/synch/rwlock/sql/LOCK_grant
wait/synch/rwlock/sql/LOCK_system_variables_hash
wait/synch/rwlock/sql/LOCK_sys_init_connect
wait/synch/rwlock/sql/LOCK_sys_init_slave
wait/synch/rwlock/sql/LOGGER::LOCK_logger
wait/synch/rwlock/sql/MDL_context::LOCK_waiting_for
wait/synch/rwlock/sql/MDL_lock::rwlock
wait/synch/rwlock/sql/THR_LOCK_servers
wait/synch/rwlock/sql/THR_LOCK_udf
select name from cond_instances where name not rlike '/(DEBUG_SYNC::cond)$' group by name;
name
wait/synch/cond/aria/SERVICE_THREAD_CONTROL::COND_control
wait/synch/cond/aria/TRANSLOG_BUFFER::prev_sent_to_disk_cond
wait/synch/cond/aria/TRANSLOG_BUFFER::waiting_filling_buffer
wait/synch/cond/aria/TRANSLOG_DESCRIPTOR::log_flush_cond
wait/synch/cond/aria/TRANSLOG_DESCRIPTOR::new_goal_cond
wait/synch/cond/mysys/COND_alarm
wait/synch/cond/mysys/my_thread_var::suspend
wait/synch/cond/mysys/THR_COND_threads
wait/synch/cond/sql/COND_flush_thread_cache
wait/synch/cond/sql/COND_queue_state
wait/synch/cond/sql/COND_rpl_status
wait/synch/cond/sql/COND_server_started
wait/synch/cond/sql/COND_thread_cache
wait/synch/cond/sql/COND_thread_count
wait/synch/cond/sql/Event_scheduler::COND_state
wait/synch/cond/sql/Master_info::data_cond
wait/synch/cond/sql/Master_info::sleep_cond
wait/synch/cond/sql/Master_info::start_cond
wait/synch/cond/sql/Master_info::stop_cond
wait/synch/cond/sql/MDL_context::COND_wait_status
wait/synch/cond/sql/MYSQL_BIN_LOG::COND_binlog_background_thread
wait/synch/cond/sql/MYSQL_BIN_LOG::COND_binlog_background_thread_end
wait/synch/cond/sql/MYSQL_BIN_LOG::COND_queue_busy
wait/synch/cond/sql/MYSQL_BIN_LOG::COND_xid_list
wait/synch/cond/sql/MYSQL_BIN_LOG::update_cond
wait/synch/cond/sql/MYSQL_RELAY_LOG::COND_queue_busy
wait/synch/cond/sql/MYSQL_RELAY_LOG::update_cond
wait/synch/cond/sql/Query_cache::COND_cache_status_changed
wait/synch/cond/sql/Relay_log_info::data_cond
wait/synch/cond/sql/Relay_log_info::log_space_cond
wait/synch/cond/sql/Relay_log_info::sleep_cond
wait/synch/cond/sql/Relay_log_info::start_cond
wait/synch/cond/sql/Relay_log_info::stop_cond
wait/synch/cond/sql/THD::COND_wakeup_ready
select event_name from file_instances group by event_name;
event_name
wait/io/file/aria/control
wait/io/file/aria/translog
wait/io/file/myisam/dfile
wait/io/file/myisam/kfile
wait/io/file/mysys/charset
wait/io/file/sql/casetest
wait/io/file/sql/dbopt
wait/io/file/sql/ERRMSG
wait/io/file/sql/FRM
wait/io/file/sql/pid
wait/io/file/sql/query_log
wait/io/file/sql/slow_log
select name from threads group by name;
name
thread/aria/checkpoint_background
thread/sql/main
thread/sql/one_connection
thread/sql/signal_handler
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