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Commit ad7dad8d authored by vtkachenko@intelp4d.mysql.com's avatar vtkachenko@intelp4d.mysql.com
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Many files: 

  - Create innodb_thread_concurrency as dynamic variable
  - Add innodb_thread_sleep_delay variable
  - Add innodb_free_tickets_to_enter variable
parent bd47d6f3
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Showing with 115 additions and 10 deletions
innobase/include/srv0srv.h
View file @ ad7dad8d
......@@ -134,6 +134,8 @@ extern ibool srv_lock_timeout_and_monitor_active;
extern ibool srv_error_monitor_active;
extern ulint srv_n_spin_wait_rounds;
extern ulint srv_n_free_tickets_to_enter;
extern ulint srv_thread_sleep_delay;
extern ulint srv_spin_wait_delay;
extern ibool srv_priority_boost;
......
innobase/srv/srv0srv.c
View file @ ad7dad8d
......@@ -297,8 +297,8 @@ srv_conc_slot_t* srv_conc_slots; /* array of wait
/* Number of times a thread is allowed to enter InnoDB within the same
SQL query after it has once got the ticket at srv_conc_enter_innodb */
#define SRV_FREE_TICKETS_TO_ENTER 500
#define SRV_FREE_TICKETS_TO_ENTER srv_n_free_tickets_to_enter
#define SRV_THREAD_SLEEP_DELAY srv_thread_sleep_delay
/*-----------------------*/
/* If the following is set TRUE then we do not run purge and insert buffer
merge to completion before shutdown */
......@@ -328,6 +328,8 @@ ulint srv_max_purge_lag = 0;
/*-------------------------------------------*/
ulint srv_n_spin_wait_rounds = 20;
ulint srv_n_free_tickets_to_enter = 500;
ulint srv_thread_sleep_delay = 10000;
ulint srv_spin_wait_delay = 5;
ibool srv_priority_boost = TRUE;
......@@ -1025,8 +1027,8 @@ srv_conc_enter_innodb(
return;
}
/* If the transaction is not holding resources, let it sleep for 50
milliseconds, and try again then */
/* If the transaction is not holding resources,
let it sleep for SRV_THREAD_SLEEP_DELAY microseconds, and try again then */
if (!has_slept && !trx->has_search_latch
&& NULL == UT_LIST_GET_FIRST(trx->trx_locks)) {
......@@ -1045,8 +1047,10 @@ srv_conc_enter_innodb(
situations of lots of thread switches. Simply put some
threads aside for a while to reduce the number of thread
switches. */
os_thread_sleep(10000);
if (SRV_THREAD_SLEEP_DELAY > 0)
{
os_thread_sleep(SRV_THREAD_SLEEP_DELAY);
}
trx->op_info = "";
......
mysql-test/r/innodb.result
View file @ ad7dad8d
......@@ -1730,5 +1730,50 @@ set global innodb_sync_spin_loops=20;
show variables like "innodb_sync_spin_loops";
Variable_name Value
innodb_sync_spin_loops 20
show variables like "innodb_thread_concurrency";
Variable_name Value
innodb_thread_concurrency 8
set global innodb_thread_concurrency=1000;
show variables like "innodb_thread_concurrency";
Variable_name Value
innodb_thread_concurrency 1000
set global innodb_thread_concurrency=0;
show variables like "innodb_thread_concurrency";
Variable_name Value
innodb_thread_concurrency 1
set global innodb_thread_concurrency=16;
show variables like "innodb_thread_concurrency";
Variable_name Value
innodb_thread_concurrency 16
show variables like "innodb_free_tickets_to_enter";
Variable_name Value
innodb_free_tickets_to_enter 500
set global innodb_free_tickets_to_enter=1000;
show variables like "innodb_free_tickets_to_enter";
Variable_name Value
innodb_free_tickets_to_enter 1000
set global innodb_free_tickets_to_enter=0;
show variables like "innodb_free_tickets_to_enter";
Variable_name Value
innodb_free_tickets_to_enter 1
set global innodb_free_tickets_to_enter=500;
show variables like "innodb_free_tickets_to_enter";
Variable_name Value
innodb_free_tickets_to_enter 500
show variables like "innodb_thread_sleep_delay";
Variable_name Value
innodb_thread_sleep_delay 10000
set global innodb_thread_sleep_delay=100000;
show variables like "innodb_thread_sleep_delay";
Variable_name Value
innodb_thread_sleep_delay 100000
set global innodb_thread_sleep_delay=0;
show variables like "innodb_thread_sleep_delay";
Variable_name Value
innodb_thread_sleep_delay 0
set global innodb_thread_sleep_delay=10000;
show variables like "innodb_thread_sleep_delay";
Variable_name Value
innodb_thread_sleep_delay 10000
create table t1 (v varchar(16384)) engine=innodb;
ERROR 42000: Column length too big for column 'v' (max = 255); use BLOB instead
mysql-test/t/innodb.test
View file @ ad7dad8d
......@@ -1227,6 +1227,33 @@ show variables like "innodb_sync_spin_loops";
set global innodb_sync_spin_loops=20;
show variables like "innodb_sync_spin_loops";
# Test for innodb_thread_concurrency variable
show variables like "innodb_thread_concurrency";
set global innodb_thread_concurrency=1000;
show variables like "innodb_thread_concurrency";
set global innodb_thread_concurrency=0;
show variables like "innodb_thread_concurrency";
set global innodb_thread_concurrency=16;
show variables like "innodb_thread_concurrency";
# Test for innodb_free_tickets_to_enter variable
show variables like "innodb_free_tickets_to_enter";
set global innodb_free_tickets_to_enter=1000;
show variables like "innodb_free_tickets_to_enter";
set global innodb_free_tickets_to_enter=0;
show variables like "innodb_free_tickets_to_enter";
set global innodb_free_tickets_to_enter=500;
show variables like "innodb_free_tickets_to_enter";
# Test for innodb_thread_sleep_delay variable
show variables like "innodb_thread_sleep_delay";
set global innodb_thread_sleep_delay=100000;
show variables like "innodb_thread_sleep_delay";
set global innodb_thread_sleep_delay=0;
show variables like "innodb_thread_sleep_delay";
set global innodb_thread_sleep_delay=10000;
show variables like "innodb_thread_sleep_delay";
#
# Test varchar
#
......
sql/ha_innodb.cc
View file @ ad7dad8d
......@@ -250,7 +250,7 @@ struct show_var_st innodb_status_variables[]= {
{"rows_updated",
(char*) &export_vars.innodb_rows_updated, SHOW_LONG},
{NullS, NullS, SHOW_LONG}};
/* General functions */
/**********************************************************************
......@@ -1132,7 +1132,6 @@ innobase_init(void)
srv_n_file_io_threads = (ulint) innobase_file_io_threads;
srv_lock_wait_timeout = (ulint) innobase_lock_wait_timeout;
srv_thread_concurrency = (ulint) innobase_thread_concurrency;
srv_force_recovery = (ulint) innobase_force_recovery;
srv_fast_shutdown = (ibool) innobase_fast_shutdown;
......
sql/ha_innodb.h
View file @ ad7dad8d
......@@ -213,7 +213,10 @@ extern ulong srv_max_buf_pool_modified_pct;
extern ulong srv_max_purge_lag;
extern ulong srv_auto_extend_increment;
extern ulong srv_n_spin_wait_rounds;
extern ulong srv_n_free_tickets_to_enter;
extern ulong srv_thread_sleep_delay;
extern ulong srv_max_purge_lag;
extern ulong srv_thread_concurrency;
}
extern TYPELIB innobase_lock_typelib;
......
sql/mysqld.cc
View file @ ad7dad8d
......@@ -4200,6 +4200,8 @@ enum options_mysqld
OPT_INNODB_OPEN_FILES,
OPT_INNODB_AUTOEXTEND_INCREMENT,
OPT_INNODB_SYNC_SPIN_LOOPS,
OPT_INNODB_FREE_TICKETS_TO_ENTER,
OPT_INNODB_THREAD_SLEEP_DELAY,
OPT_BDB_CACHE_SIZE,
OPT_BDB_LOG_BUFFER_SIZE,
OPT_BDB_MAX_LOCK,
......@@ -5050,6 +5052,12 @@ log and this option does nothing anymore.",
(gptr*) &srv_n_spin_wait_rounds,
(gptr*) &srv_n_spin_wait_rounds,
0, GET_LONG, REQUIRED_ARG, 20L, 0L, ~0L, 0, 1L, 0},
{"innodb_free_tickets_to_enter", OPT_INNODB_FREE_TICKETS_TO_ENTER,
"Number of times a thread is allowed to enter InnoDB within the same \
SQL query after it has once got the ticket",
(gptr*) &srv_n_free_tickets_to_enter,
(gptr*) &srv_n_free_tickets_to_enter,
0, GET_LONG, REQUIRED_ARG, 500L, 1L, ~0L, 0, 1L, 0},
#ifdef HAVE_REPLICATION
/*
Disabled for the 4.1.3 release. Disabling just this paragraph of code is
......@@ -5072,8 +5080,14 @@ log and this option does nothing anymore.",
#endif
{"innodb_thread_concurrency", OPT_INNODB_THREAD_CONCURRENCY,
"Helps in performance tuning in heavily concurrent environments.",
(gptr*) &innobase_thread_concurrency, (gptr*) &innobase_thread_concurrency,
(gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency,
0, GET_LONG, REQUIRED_ARG, 8, 1, 1000, 0, 1, 0},
{"innodb_thread_sleep_delay", OPT_INNODB_THREAD_SLEEP_DELAY,
"Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0"
" disable a sleep",
(gptr*) &srv_thread_sleep_delay,
(gptr*) &srv_thread_sleep_delay,
0, GET_LONG, REQUIRED_ARG, 10000L, 0L, ~0L, 0, 1L, 0},
#endif /* HAVE_INNOBASE_DB */
{"interactive_timeout", OPT_INTERACTIVE_TIMEOUT,
"The number of seconds the server waits for activity on an interactive connection before closing it.",
......
sql/set_var.cc
View file @ ad7dad8d
......@@ -380,6 +380,12 @@ sys_var_long_ptr sys_innodb_autoextend_increment("innodb_autoextend_increment",
&srv_auto_extend_increment);
sys_var_long_ptr sys_innodb_sync_spin_loops("innodb_sync_spin_loops",
&srv_n_spin_wait_rounds);
sys_var_long_ptr sys_innodb_free_tickets_to_enter("innodb_free_tickets_to_enter",
&srv_n_free_tickets_to_enter);
sys_var_long_ptr sys_innodb_thread_sleep_delay("innodb_thread_sleep_delay",
&srv_thread_sleep_delay);
sys_var_long_ptr sys_innodb_thread_concurrency("innodb_thread_concurrency",
&srv_thread_concurrency);
#endif
#ifdef HAVE_NDBCLUSTER_DB
......@@ -654,6 +660,9 @@ sys_var *sys_variables[]=
&sys_innodb_max_purge_lag,
&sys_innodb_autoextend_increment,
&sys_innodb_sync_spin_loops,
&sys_innodb_free_tickets_to_enter,
&sys_innodb_thread_sleep_delay,
&sys_innodb_thread_concurrency,
#endif
#ifdef HAVE_NDBCLUSTER_DB
&sys_ndb_autoincrement_prefetch_sz,
......@@ -752,6 +761,7 @@ struct show_var_st init_vars[]= {
{"innodb_flush_log_at_trx_commit", (char*) &innobase_flush_log_at_trx_commit, SHOW_INT},
{"innodb_flush_method", (char*) &innobase_unix_file_flush_method, SHOW_CHAR_PTR},
{"innodb_force_recovery", (char*) &innobase_force_recovery, SHOW_LONG },
{sys_innodb_free_tickets_to_enter.name, (char*) &sys_innodb_free_tickets_to_enter, SHOW_SYS},
{"innodb_lock_wait_timeout", (char*) &innobase_lock_wait_timeout, SHOW_LONG },
{"innodb_log_arch_dir", (char*) &innobase_log_arch_dir, SHOW_CHAR_PTR},
{"innodb_log_archive", (char*) &innobase_log_archive, SHOW_MY_BOOL},
......@@ -765,7 +775,8 @@ struct show_var_st init_vars[]= {
{sys_innodb_max_purge_lag.name, (char*) &sys_innodb_max_purge_lag, SHOW_SYS},
{"innodb_mirrored_log_groups", (char*) &innobase_mirrored_log_groups, SHOW_LONG},
{"innodb_open_files", (char*) &innobase_open_files, SHOW_LONG },
{"innodb_thread_concurrency", (char*) &innobase_thread_concurrency, SHOW_LONG },
{sys_innodb_thread_concurrency.name, (char*) &sys_innodb_thread_concurrency, SHOW_SYS},
{sys_innodb_thread_sleep_delay.name, (char*) &sys_innodb_thread_sleep_delay, SHOW_SYS},
{sys_innodb_sync_spin_loops.name, (char*) &sys_innodb_sync_spin_loops, SHOW_SYS},
#endif
{sys_interactive_timeout.name,(char*) &sys_interactive_timeout, SHOW_SYS},
......
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