mirror of
https://github.com/MariaDB/server.git
synced 2025-02-22 21:33:08 +01:00
245 lines
7.4 KiB
C++
245 lines
7.4 KiB
C++
/*****************************************************************************
|
|
|
|
Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
|
|
Copyright (c) 2020, MariaDB Corporation.
|
|
Copyright (c) 2008, Google Inc.
|
|
Copyright (c) 2020, 2022, MariaDB Corporation.
|
|
|
|
Portions of this file contain modifications contributed and copyrighted by
|
|
Google, Inc. Those modifications are gratefully acknowledged and are described
|
|
briefly in the InnoDB documentation. The contributions by Google are
|
|
incorporated with their permission, and subject to the conditions contained in
|
|
the file COPYING.Google.
|
|
|
|
This program is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free Software
|
|
Foundation; version 2 of the License.
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
|
|
|
|
*****************************************************************************/
|
|
|
|
/**************************************************//**
|
|
@file sync/sync0sync.cc
|
|
Mutex, the basic synchronization primitive
|
|
|
|
Created 9/5/1995 Heikki Tuuri
|
|
*******************************************************/
|
|
|
|
#include "sync0rw.h"
|
|
#include "sync0sync.h"
|
|
|
|
#ifdef UNIV_PFS_MUTEX
|
|
mysql_pfs_key_t buf_pool_mutex_key;
|
|
mysql_pfs_key_t dict_foreign_err_mutex_key;
|
|
mysql_pfs_key_t dict_sys_mutex_key;
|
|
mysql_pfs_key_t fil_system_mutex_key;
|
|
mysql_pfs_key_t flush_list_mutex_key;
|
|
mysql_pfs_key_t fts_delete_mutex_key;
|
|
mysql_pfs_key_t fts_doc_id_mutex_key;
|
|
mysql_pfs_key_t fts_pll_tokenize_mutex_key;
|
|
mysql_pfs_key_t ibuf_mutex_key;
|
|
mysql_pfs_key_t ibuf_pessimistic_insert_mutex_key;
|
|
mysql_pfs_key_t log_sys_mutex_key;
|
|
mysql_pfs_key_t log_cmdq_mutex_key;
|
|
mysql_pfs_key_t log_flush_order_mutex_key;
|
|
mysql_pfs_key_t recalc_pool_mutex_key;
|
|
mysql_pfs_key_t purge_sys_pq_mutex_key;
|
|
mysql_pfs_key_t recv_sys_mutex_key;
|
|
mysql_pfs_key_t redo_rseg_mutex_key;
|
|
mysql_pfs_key_t noredo_rseg_mutex_key;
|
|
mysql_pfs_key_t page_zip_stat_per_index_mutex_key;
|
|
# ifdef UNIV_DEBUG
|
|
mysql_pfs_key_t rw_lock_debug_mutex_key;
|
|
# endif /* UNIV_DEBUG */
|
|
mysql_pfs_key_t rtr_active_mutex_key;
|
|
mysql_pfs_key_t rtr_match_mutex_key;
|
|
mysql_pfs_key_t rtr_path_mutex_key;
|
|
mysql_pfs_key_t rw_lock_list_mutex_key;
|
|
mysql_pfs_key_t srv_innodb_monitor_mutex_key;
|
|
mysql_pfs_key_t srv_misc_tmpfile_mutex_key;
|
|
mysql_pfs_key_t srv_monitor_file_mutex_key;
|
|
mysql_pfs_key_t buf_dblwr_mutex_key;
|
|
mysql_pfs_key_t trx_mutex_key;
|
|
mysql_pfs_key_t trx_pool_mutex_key;
|
|
mysql_pfs_key_t trx_pool_manager_mutex_key;
|
|
mysql_pfs_key_t lock_mutex_key;
|
|
mysql_pfs_key_t lock_wait_mutex_key;
|
|
mysql_pfs_key_t trx_sys_mutex_key;
|
|
mysql_pfs_key_t srv_threads_mutex_key;
|
|
mysql_pfs_key_t sync_array_mutex_key;
|
|
mysql_pfs_key_t thread_mutex_key;
|
|
mysql_pfs_key_t row_drop_list_mutex_key;
|
|
mysql_pfs_key_t rw_trx_hash_element_mutex_key;
|
|
mysql_pfs_key_t read_view_mutex_key;
|
|
#endif /* UNIV_PFS_MUTEX */
|
|
#ifdef UNIV_PFS_RWLOCK
|
|
mysql_pfs_key_t btr_search_latch_key;
|
|
mysql_pfs_key_t dict_operation_lock_key;
|
|
mysql_pfs_key_t index_tree_rw_lock_key;
|
|
mysql_pfs_key_t index_online_log_key;
|
|
mysql_pfs_key_t fil_space_latch_key;
|
|
mysql_pfs_key_t fts_cache_rw_lock_key;
|
|
mysql_pfs_key_t fts_cache_init_rw_lock_key;
|
|
mysql_pfs_key_t trx_i_s_cache_lock_key;
|
|
mysql_pfs_key_t trx_purge_latch_key;
|
|
#endif /* UNIV_PFS_RWLOCK */
|
|
|
|
/** For monitoring active mutexes */
|
|
MutexMonitor mutex_monitor;
|
|
|
|
/**
|
|
Prints wait info of the sync system.
|
|
@param file - where to print */
|
|
static
|
|
void
|
|
sync_print_wait_info(FILE* file)
|
|
{
|
|
fprintf(file,
|
|
"RW-shared spins " UINT64PF ", rounds " UINT64PF ","
|
|
" OS waits " UINT64PF "\n"
|
|
"RW-excl spins " UINT64PF ", rounds " UINT64PF ","
|
|
" OS waits " UINT64PF "\n"
|
|
"RW-sx spins " UINT64PF ", rounds " UINT64PF ","
|
|
" OS waits " UINT64PF "\n",
|
|
(ib_uint64_t) rw_lock_stats.rw_s_spin_wait_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_s_spin_round_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_s_os_wait_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_x_spin_wait_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_x_spin_round_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_x_os_wait_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_sx_spin_wait_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_sx_spin_round_count,
|
|
(ib_uint64_t) rw_lock_stats.rw_sx_os_wait_count);
|
|
|
|
fprintf(file,
|
|
"Spin rounds per wait: %.2f RW-shared,"
|
|
" %.2f RW-excl, %.2f RW-sx\n",
|
|
rw_lock_stats.rw_s_spin_wait_count
|
|
? static_cast<double>(rw_lock_stats.rw_s_spin_round_count) /
|
|
static_cast<double>(rw_lock_stats.rw_s_spin_wait_count)
|
|
: static_cast<double>(rw_lock_stats.rw_s_spin_round_count),
|
|
rw_lock_stats.rw_x_spin_wait_count
|
|
? static_cast<double>(rw_lock_stats.rw_x_spin_round_count) /
|
|
static_cast<double>(rw_lock_stats.rw_x_spin_wait_count)
|
|
: static_cast<double>(rw_lock_stats.rw_x_spin_round_count),
|
|
rw_lock_stats.rw_sx_spin_wait_count
|
|
? static_cast<double>(rw_lock_stats.rw_sx_spin_round_count) /
|
|
static_cast<double>(rw_lock_stats.rw_sx_spin_wait_count)
|
|
: static_cast<double>(rw_lock_stats.rw_sx_spin_round_count));
|
|
}
|
|
|
|
/**
|
|
Prints info of the sync system.
|
|
@param file - where to print */
|
|
void
|
|
sync_print(FILE* file)
|
|
{
|
|
#ifdef UNIV_DEBUG
|
|
rw_lock_list_print_info(file);
|
|
#endif /* UNIV_DEBUG */
|
|
|
|
sync_array_print(file);
|
|
|
|
sync_print_wait_info(file);
|
|
}
|
|
|
|
/** Print the filename "basename" e.g., p = "/a/b/c/d/e.cc" -> p = "e.cc"
|
|
@param[in] filename Name from where to extract the basename
|
|
@return the basename */
|
|
const char*
|
|
sync_basename(const char* filename)
|
|
{
|
|
const char* ptr = filename + strlen(filename) - 1;
|
|
|
|
while (ptr > filename && *ptr != '/' && *ptr != '\\') {
|
|
--ptr;
|
|
}
|
|
|
|
++ptr;
|
|
|
|
return(ptr);
|
|
}
|
|
|
|
/** String representation of the filename and line number where the
|
|
latch was created
|
|
@param[in] id Latch ID
|
|
@param[in] created Filename and line number where it was crated
|
|
@return the string representation */
|
|
std::string
|
|
sync_mutex_to_string(
|
|
latch_id_t id,
|
|
const std::string& created)
|
|
{
|
|
std::ostringstream msg;
|
|
|
|
msg << "Mutex " << sync_latch_get_name(id) << " "
|
|
<< "created " << created;
|
|
|
|
return(msg.str());
|
|
}
|
|
|
|
/** Enable the mutex monitoring */
|
|
void
|
|
MutexMonitor::enable()
|
|
{
|
|
/** Note: We don't add any latch meta-data after startup. Therefore
|
|
there is no need to use a mutex here. */
|
|
|
|
LatchMetaData::iterator end = latch_meta.end();
|
|
|
|
for (LatchMetaData::iterator it = latch_meta.begin(); it != end; ++it) {
|
|
|
|
if (*it != NULL) {
|
|
(*it)->get_counter()->enable();
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Disable the mutex monitoring */
|
|
void
|
|
MutexMonitor::disable()
|
|
{
|
|
/** Note: We don't add any latch meta-data after startup. Therefore
|
|
there is no need to use a mutex here. */
|
|
|
|
LatchMetaData::iterator end = latch_meta.end();
|
|
|
|
for (LatchMetaData::iterator it = latch_meta.begin(); it != end; ++it) {
|
|
|
|
if (*it != NULL) {
|
|
(*it)->get_counter()->disable();
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Reset the mutex monitoring counters */
|
|
void
|
|
MutexMonitor::reset()
|
|
{
|
|
/** Note: We don't add any latch meta-data after startup. Therefore
|
|
there is no need to use a mutex here. */
|
|
|
|
LatchMetaData::iterator end = latch_meta.end();
|
|
|
|
for (LatchMetaData::iterator it = latch_meta.begin(); it != end; ++it) {
|
|
|
|
if (*it != NULL) {
|
|
(*it)->get_counter()->reset();
|
|
}
|
|
}
|
|
|
|
mutex_enter(&rw_lock_list_mutex);
|
|
|
|
for (rw_lock_t& rw_lock : rw_lock_list) {
|
|
rw_lock.count_os_wait = 0;
|
|
}
|
|
|
|
mutex_exit(&rw_lock_list_mutex);
|
|
}
|