diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:00:34 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:00:34 +0000 |
commit | 3f619478f796eddbba6e39502fe941b285dd97b1 (patch) | |
tree | e2c7b5777f728320e5b5542b6213fd3591ba51e2 /storage/perfschema/table_events_waits_summary.cc | |
parent | Initial commit. (diff) | |
download | mariadb-3f619478f796eddbba6e39502fe941b285dd97b1.tar.xz mariadb-3f619478f796eddbba6e39502fe941b285dd97b1.zip |
Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'storage/perfschema/table_events_waits_summary.cc')
-rw-r--r-- | storage/perfschema/table_events_waits_summary.cc | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/storage/perfschema/table_events_waits_summary.cc b/storage/perfschema/table_events_waits_summary.cc new file mode 100644 index 00000000..c848ebf4 --- /dev/null +++ b/storage/perfschema/table_events_waits_summary.cc @@ -0,0 +1,243 @@ +/* Copyright (c) 2008, 2023, Oracle and/or its affiliates. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License, version 2.0, + as published by the Free Software Foundation. + + This program is also distributed with certain software (including + but not limited to OpenSSL) that is licensed under separate terms, + as designated in a particular file or component or in included license + documentation. The authors of MySQL hereby grant you an additional + permission to link the program and your derivative works with the + separately licensed software that they have included with MySQL. + + 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, version 2.0, 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, + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */ + +/** + @file storage/perfschema/table_events_waits_summary.cc + Table EVENTS_WAITS_SUMMARY_BY_xxx (implementation). +*/ + +#include "my_global.h" +#include "my_thread.h" +#include "pfs_instr_class.h" +#include "pfs_column_types.h" +#include "pfs_column_values.h" +#include "table_events_waits_summary.h" +#include "pfs_global.h" +#include "field.h" + +THR_LOCK table_events_waits_summary_by_instance::m_table_lock; + +PFS_engine_table_share_state +table_events_waits_summary_by_instance::m_share_state = { + false /* m_checked */ +}; + +PFS_engine_table_share +table_events_waits_summary_by_instance::m_share= +{ + { C_STRING_WITH_LEN("events_waits_summary_by_instance") }, + &pfs_truncatable_acl, + table_events_waits_summary_by_instance::create, + NULL, /* write_row */ + table_events_waits_summary_by_instance::delete_all_rows, + table_all_instr::get_row_count, + sizeof(pos_all_instr), + &m_table_lock, + { C_STRING_WITH_LEN("CREATE TABLE events_waits_summary_by_instance(" + "EVENT_NAME VARCHAR(128) not null comment 'Event name. Used together with OBJECT_INSTANCE_BEGIN for grouping events.'," + "OBJECT_INSTANCE_BEGIN BIGINT unsigned not null comment 'If an instrument creates multiple instances, each instance has a unique OBJECT_INSTANCE_BEGIN value to allow for grouping by instance.'," + "COUNT_STAR BIGINT unsigned not null comment 'Number of summarized events'," + "SUM_TIMER_WAIT BIGINT unsigned not null comment 'Total wait time of the summarized events that are timed.'," + "MIN_TIMER_WAIT BIGINT unsigned not null comment 'Minimum wait time of the summarized events that are timed.'," + "AVG_TIMER_WAIT BIGINT unsigned not null comment 'Average wait time of the summarized events that are timed.'," + "MAX_TIMER_WAIT BIGINT unsigned not null comment 'Maximum wait time of the summarized events that are timed.')") }, + false, /* m_perpetual */ + false, /* m_optional */ + &m_share_state +}; + +PFS_engine_table* table_events_waits_summary_by_instance::create(void) +{ + return new table_events_waits_summary_by_instance(); +} + +int table_events_waits_summary_by_instance::delete_all_rows(void) +{ + reset_events_waits_by_instance(); + return 0; +} + +table_events_waits_summary_by_instance +::table_events_waits_summary_by_instance() + : table_all_instr(&m_share), m_row_exists(false) +{} + +void table_events_waits_summary_by_instance +::make_instr_row(PFS_instr *pfs, PFS_instr_class *klass, + const void *object_instance_begin, + PFS_single_stat *pfs_stat) +{ + pfs_optimistic_state lock; + m_row_exists= false; + + /* + Protect this reader against a mutex/rwlock/cond destroy, + file delete, table drop. + */ + pfs->m_lock.begin_optimistic_lock(&lock); + + m_row.m_name= klass->m_name; + m_row.m_name_length= klass->m_name_length; + m_row.m_object_instance_addr= (intptr) object_instance_begin; + + get_normalizer(klass); + m_row.m_stat.set(m_normalizer, pfs_stat); + + if (pfs->m_lock.end_optimistic_lock(&lock)) + m_row_exists= true; +} + +/** + Build a row, for mutex statistics in a thread. + @param pfs the mutex this cursor is reading +*/ +void table_events_waits_summary_by_instance::make_mutex_row(PFS_mutex *pfs) +{ + PFS_mutex_class *safe_class; + safe_class= sanitize_mutex_class(pfs->m_class); + if (unlikely(safe_class == NULL)) + return; + + make_instr_row(pfs, safe_class, pfs->m_identity, &pfs->m_mutex_stat.m_wait_stat); +} + +/** + Build a row, for rwlock statistics in a thread. + @param pfs the rwlock this cursor is reading +*/ +void table_events_waits_summary_by_instance::make_rwlock_row(PFS_rwlock *pfs) +{ + PFS_rwlock_class *safe_class; + safe_class= sanitize_rwlock_class(pfs->m_class); + if (unlikely(safe_class == NULL)) + return; + + make_instr_row(pfs, safe_class, pfs->m_identity, &pfs->m_rwlock_stat.m_wait_stat); +} + +/** + Build a row, for condition statistics in a thread. + @param pfs the condition this cursor is reading +*/ +void table_events_waits_summary_by_instance::make_cond_row(PFS_cond *pfs) +{ + PFS_cond_class *safe_class; + safe_class= sanitize_cond_class(pfs->m_class); + if (unlikely(safe_class == NULL)) + return; + + make_instr_row(pfs, safe_class, pfs->m_identity, &pfs->m_cond_stat.m_wait_stat); +} + +/** + Build a row, for file statistics in a thread. + @param pfs the file this cursor is reading +*/ +void table_events_waits_summary_by_instance::make_file_row(PFS_file *pfs) +{ + PFS_file_class *safe_class; + safe_class= sanitize_file_class(pfs->m_class); + if (unlikely(safe_class == NULL)) + return; + + PFS_single_stat sum; + pfs->m_file_stat.m_io_stat.sum_waits(& sum); + /* + Files don't have a in memory structure associated to it, + so we use the address of the PFS_file buffer as object_instance_begin + */ + make_instr_row(pfs, safe_class, pfs, & sum); +} + +/** + Build a row, for socket statistics in a thread. + @param pfs the socket this cursor is reading +*/ +void table_events_waits_summary_by_instance::make_socket_row(PFS_socket *pfs) +{ + PFS_socket_class *safe_class; + safe_class= sanitize_socket_class(pfs->m_class); + if (unlikely(safe_class == NULL)) + return; + + /* + Consolidate wait times and byte counts for individual operations. This is + done by the consumer in order to reduce overhead on the socket instrument. + */ + PFS_byte_stat pfs_stat; + pfs->m_socket_stat.m_io_stat.sum(&pfs_stat); + + /* + Sockets don't have an associated in-memory structure, so use the address of + the PFS_socket buffer as object_instance_begin. + */ + make_instr_row(pfs, safe_class, pfs, &pfs_stat); +} + +int table_events_waits_summary_by_instance +::read_row_values(TABLE *table, unsigned char *, Field **fields, + bool read_all) +{ + Field *f; + + if (unlikely(! m_row_exists)) + return HA_ERR_RECORD_DELETED; + + /* Set the null bits */ + assert(table->s->null_bytes == 0); + + for (; (f= *fields) ; fields++) + { + if (read_all || bitmap_is_set(table->read_set, f->field_index)) + { + switch(f->field_index) + { + case 0: /* NAME */ + set_field_varchar_utf8(f, m_row.m_name, m_row.m_name_length); + break; + case 1: /* OBJECT_INSTANCE */ + set_field_ulonglong(f, m_row.m_object_instance_addr); + break; + case 2: /* COUNT */ + set_field_ulonglong(f, m_row.m_stat.m_count); + break; + case 3: /* SUM */ + set_field_ulonglong(f, m_row.m_stat.m_sum); + break; + case 4: /* MIN */ + set_field_ulonglong(f, m_row.m_stat.m_min); + break; + case 5: /* AVG */ + set_field_ulonglong(f, m_row.m_stat.m_avg); + break; + case 6: /* MAX */ + set_field_ulonglong(f, m_row.m_stat.m_max); + break; + default: + assert(false); + } + } + } + + return 0; +} + |