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Redundant indexes"

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root 2016-10-10 19:03:40 +02:00
parent e684a45120
commit c10c7e81ec
2 changed files with 330 additions and 50 deletions
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3
INTERNALS.md
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@ -357,4 +357,5 @@
* TOP 15 high select latency tables
* TOP 15 high insert latency tables
* TOP 15 high update latency tables
* TOP 15 high delete latency tables
* TOP 15 high delete latency tables
* Redundant indexes

377
mysqltuner.pl
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@ -3641,7 +3641,7 @@ sub mysqsl_pfs {
#schema_index_statistics
# TOP 15 most read index
subheaderprint "TOP 15 most read indexes";
subheaderprint "Performance schema: TOP 15 most read indexes";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name,index_name, rows_selected from schema_index_statistics ORDER BY ROWs_selected DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3650,7 +3650,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 most used index
subheaderprint "TOP 15 most modified indexes";
subheaderprint "Performance schema: TOP 15 most modified indexes";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name,index_name, rows_inserted+rows_updated+rows_deleted AS changes from schema_index_statistics ORDER BY rows_inserted+rows_updated+rows_deleted DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3659,7 +3659,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high read latency index
subheaderprint "TOP 15 high read latency index";
subheaderprint "Performance schema: TOP 15 high read latency index";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name,index_name, select_latency from schema_index_statistics ORDER BY select_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3668,7 +3668,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high insert latency index
subheaderprint "TOP 15 most modified indexes";
subheaderprint "Performance schema: TOP 15 most modified indexes";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name,index_name, insert_latency from schema_index_statistics ORDER BY insert_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3677,7 +3677,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high update latency index
subheaderprint "TOP 15 high update latency index";
subheaderprint "Performance schema: TOP 15 high update latency index";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name,index_name, update_latency from schema_index_statistics ORDER BY update_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3686,7 +3686,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high delete latency index
subheaderprint "TOP 15 high delete latency index";
subheaderprint "Performance schema: TOP 15 high delete latency index";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name,index_name, delete_latency from schema_index_statistics ORDER BY delete_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3697,7 +3697,7 @@ sub mysqsl_pfs {
##################################################################################
#schema_table_statistics
# TOP 15 most read tables
subheaderprint "TOP 15 most read tables";
subheaderprint "Performance schema: TOP 15 most read tables";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name, rows_fetched from schema_table_statistics ORDER BY ROWs_fetched DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3706,7 +3706,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 most used tables
subheaderprint "TOP 15 most modified tables";
subheaderprint "Performance schema: TOP 15 most modified tables";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name, rows_inserted+rows_updated+rows_deleted AS changes from schema_table_statistics ORDER BY rows_inserted+rows_updated+rows_deleted DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3715,7 +3715,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high read latency tables
subheaderprint "TOP 15 high read latency tables";
subheaderprint "Performance schema: TOP 15 high read latency tables";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name, fetch_latency from schema_table_statistics ORDER BY fetch_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3724,7 +3724,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high insert latency tables
subheaderprint "TOP 15 high insert latency tables";
subheaderprint "Performance schema: TOP 15 high insert latency tables";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name, insert_latency from schema_table_statistics ORDER BY insert_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3733,7 +3733,7 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high update latency tables
subheaderprint "TOP 15 high update latency tables";
subheaderprint "Performance schema: TOP 15 high update latency tables";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name, update_latency from schema_table_statistics ORDER BY update_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
@ -3742,47 +3742,93 @@ sub mysqsl_pfs {
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# TOP 15 high delete latency tables
subheaderprint "TOP 15 high delete latency tables";
subheaderprint "Performance schema: TOP 15 high delete latency tables";
$nbL=1;
for my $lQuery(select_array ('use sys;select table_schema, table_name, delete_latency from schema_table_statistics ORDER BY delete_latency DESC LIMIT 15;')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
# Redundant indexes
subheaderprint "Performance schema: Redundant indexes";
$nbL=1;
for my $lQuery(select_array ('use sys;select * from schema_redundant_indexes;')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
##################################################################################
#schema_table_statistics_with_buffer
# Latest file IO by latency
subheaderprint "Performance schema: Latest FILE IO by latency";
#io_read_requests: 8
# io_read: 66.04 KiB
# io_read_latency: 2.47 ms
#io_write_requests: 0
# io_write: 0 bytes
# io_write_latency: 0 ps
# io_misc_requests: 8
# io_misc_latency: 1.34 ms
# innodb_buffer_allocated: NULL
# innodb_buffer_data: NULL
# innodb_buffer_free: NULL
# innodb_buffer_pages: NULL
#innodb_buffer_pages_hashed: NULL
# innodb_buffer_pages_old: NULL
# innodb_buffer_rows_cached: NULL
# Select * from schema_table_statistics_with_buffer
return;
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
##################################################################################
#schema_tables_with_full_table_scans
# Latest file IO by latency
subheaderprint "Performance schema: Latest FILE IO by latency";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
##################################################################################
#statement_analysis
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> desc statement_analysis;
#+-------------------+---------------------+------+-----+---------------------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+-------------------+---------------------+------+-----+---------------------+-------+
#| query | longtext | YES | | NULL | |
#| db | varchar(64) | YES | | NULL | |
#| full_scan | varchar(1) | NO | | | |
#| exec_count | bigint(20) unsigned | NO | | NULL | |
#| err_count | bigint(20) unsigned | NO | | NULL | |
#| warn_count | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| max_latency | text | YES | | NULL | |
#| avg_latency | text | YES | | NULL | |
#| lock_latency | text | YES | | NULL | |
#| rows_sent | bigint(20) unsigned | NO | | NULL | |
#| rows_sent_avg | decimal(21,0) | NO | | 0 | |
#| rows_examined | bigint(20) unsigned | NO | | NULL | |
#| rows_examined_avg | decimal(21,0) | NO | | 0 | |
#| rows_affected | bigint(20) unsigned | NO | | NULL | |
#| rows_affected_avg | decimal(21,0) | NO | | 0 | |
#| tmp_tables | bigint(20) unsigned | NO | | NULL | |
#| tmp_disk_tables | bigint(20) unsigned | NO | | NULL | |
#| rows_sorted | bigint(20) unsigned | NO | | NULL | |
#| sort_merge_passes | bigint(20) unsigned | NO | | NULL | |
#| digest | varchar(32) | YES | | NULL | |
#| first_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| last_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#+-------------------+---------------------+------+-----+---------------------+-------+
#23 rows in set (0,01 sec)
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
#########################################################################
#statements_with_errors_or_warnings
# Latest file IO by latency
subheaderprint "Performance schema: Latest FILE IO by latency";
@ -3796,28 +3842,107 @@ sub mysqsl_pfs {
##################################################################################
#statements_with_full_table_scans
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> desc statements_with_full_table_scans;
#+--------------------------+------------------------+------+-----+---------------------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+--------------------------+------------------------+------+-----+---------------------+-------+
#| query | longtext | YES | | NULL | |
#| db | varchar(64) | YES | | NULL | |
#| exec_count | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| no_index_used_count | bigint(20) unsigned | NO | | NULL | |
#| no_good_index_used_count | bigint(20) unsigned | NO | | NULL | |
#| no_index_used_pct | decimal(24,0) | NO | | 0 | |
#| rows_sent | bigint(20) unsigned | NO | | NULL | |
#| rows_examined | bigint(20) unsigned | NO | | NULL | |
#| rows_sent_avg | decimal(21,0) unsigned | YES | | NULL | |
#| rows_examined_avg | decimal(21,0) unsigned | YES | | NULL | |
#| first_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| last_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| digest | varchar(32) | YES | | NULL | |
#+--------------------------+------------------------+------+-----+---------------------+-------+
#14 rows in set (0,00 sec)
#
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
#########################################################################
#statements_with_runtimes_in_95th_percentile
# Latest file IO by latency
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> select * from statements_with_runtimes_in_95th_percentile;
#+-------------------------------------------------------------------+------+-----------+------------+-----------+------------+---------------+-------------+-------------+-----------+---------------+---------------+-------------------+---------------------+---------------------+----------------------------------+
#| query | db | full_scan | exec_count | err_count | warn_count | total_latency | max_latency | avg_latency | rows_sent | rows_sent_avg | rows_examined | rows_examined_avg | first_seen | last_seen | digest |
#+-------------------------------------------------------------------+------+-----------+------------+-----------+------------+---------------+-------------+-------------+-----------+---------------+---------------+-------------------+---------------------+---------------------+----------------------------------+
#| SELECT `sys` . `format_path` ( ... DER BY `performance_schema` . | sys | * | 31 | 0 | 0 | 5.88 s | 248.36 ms | 189.62 ms | 878 | 28 | 4309600 | 139019 | 2016-10-10 15:06:03 | 2016-10-10 18:57:03 | 5725848cdc48f0d86f4894b6fe0f87af |
#| SELECT IF ( ( `locate` ( ? , ` ... . `COMPRESSED_SIZE` ) ) DESC | sys | * | 3 | 0 | 0 | 307.41 ms | 109.74 ms | 102.47 ms | 6 | 2 | 52303 | 17434 | 2016-10-10 18:43:59 | 2016-10-10 18:45:24 | 59abe341d11b5307fbd8419b0b9a7bc3 |
#| SELECT IF ( ( `locate` ( ? , ` ... . `COMPRESSED_SIZE` ) ) DESC | NULL | * | 14 | 0 | 0 | 1.31 s | 184.00 ms | 93.61 ms | 42 | 3 | 232435 | 16603 | 2016-10-10 14:12:20 | 2016-10-10 18:57:02 | a7a8900602e4ad6155c15c5d15d49950 |
#| SELECT `sys` . `format_path` ( ... ) ) , ? ) ) AS `avg_write` , | sys | * | 36 | 6 | 0 | 3.19 s | 290.44 ms | 88.57 ms | 1510 | 42 | 1777309 | 49370 | 2016-10-10 14:55:31 | 2016-10-10 18:57:03 | 907d39d1d563a1d31828e55581f8b59e |
#| SELECT IF ( ( `locate` ( ? , ` ... . `COMPRESSED_SIZE` ) ) DESC | NULL | * | 14 | 0 | 0 | 1.13 s | 104.12 ms | 81.03 ms | 378 | 27 | 233942 | 16710 | 2016-10-10 14:12:20 | 2016-10-10 18:57:02 | 6643b924d5cbf8d1b01448d7ab04a957 |
#+-------------------------------------------------------------------+------+-----------+------------+-----------+------------+---------------+-------------+-------------+-----------+---------------+---------------+-------------------+---------------------+---------------------+----------------------------------+
#5 rows in set (0,02 sec)
#
#mysql> desc statements_with_runtimes_in_95th_percentile;
#+-------------------+---------------------+------+-----+---------------------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+-------------------+---------------------+------+-----+---------------------+-------+
#| query | longtext | YES | | NULL | |
#| db | varchar(64) | YES | | NULL | |
#| full_scan | varchar(1) | NO | | | |
#| exec_count | bigint(20) unsigned | NO | | NULL | |
#| err_count | bigint(20) unsigned | NO | | NULL | |
#| warn_count | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| max_latency | text | YES | | NULL | |
#| avg_latency | text | YES | | NULL | |
#| rows_sent | bigint(20) unsigned | NO | | NULL | |
#| rows_sent_avg | decimal(21,0) | NO | | 0 | |
#| rows_examined | bigint(20) unsigned | NO | | NULL | |
#| rows_examined_avg | decimal(21,0) | NO | | 0 | |
#| first_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| last_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| digest | varchar(32) | YES | | NULL | |
#+-------------------+---------------------+------+-----+---------------------+-------+
#16 rows in set (0,00 sec)
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
#########################################################################
##################################################################################
#statements_with_sorting
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> desc statements_with_sorting;
#+-------------------+---------------------+------+-----+---------------------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+-------------------+---------------------+------+-----+---------------------+-------+
#| query | longtext | YES | | NULL | |
#| db | varchar(64) | YES | | NULL | |
#| exec_count | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| sort_merge_passes | bigint(20) unsigned | NO | | NULL | |
#| avg_sort_merges | decimal(21,0) | NO | | 0 | |
#| sorts_using_scans | bigint(20) unsigned | NO | | NULL | |
#| sort_using_range | bigint(20) unsigned | NO | | NULL | |
#| rows_sorted | bigint(20) unsigned | NO | | NULL | |
#| avg_rows_sorted | decimal(21,0) | NO | | 0 | |
#| first_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| last_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| digest | varchar(32) | YES | | NULL | |
#+-------------------+---------------------+------+-----+---------------------+-------+
#13 rows in set (0,00 sec)
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
@ -3826,9 +3951,28 @@ sub mysqsl_pfs {
##################################################################################
#statements_with_temp_tables
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> desc statements_with_temp_tables;
#+--------------------------+---------------------+------+-----+---------------------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+--------------------------+---------------------+------+-----+---------------------+-------+
#| query | longtext | YES | | NULL | |
#| db | varchar(64) | YES | | NULL | |
#| exec_count | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| memory_tmp_tables | bigint(20) unsigned | NO | | NULL | |
#| disk_tmp_tables | bigint(20) unsigned | NO | | NULL | |
#| avg_tmp_tables_per_query | decimal(21,0) | NO | | 0 | |
#| tmp_tables_to_disk_pct | decimal(24,0) | NO | | 0 | |
#| first_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| last_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
#| digest | varchar(32) | YES | | NULL | |
#+--------------------------+---------------------+------+-----+---------------------+-------+
#11 rows in set (0,01 sec)#
#
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
@ -3836,9 +3980,19 @@ sub mysqsl_pfs {
##################################################################################
#wait_classes_global_by_avg_latency
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> select * from wait_classes_global_by_avg_latency;
#+-----------------+-------+---------------+-------------+-------------+-------------+
#| event_class | total | total_latency | min_latency | avg_latency | max_latency |
#+-----------------+-------+---------------+-------------+-------------+-------------+
#| wait/io/table | 54 | 7.34 ms | 5.45 us | 135.89 us | 3.95 ms |
#| wait/io/file | 14441 | 1.22 s | 0 ps | 84.48 us | 230.64 ms |
#| wait/lock/table | 63 | 2.29 ms | 658.84 ns | 36.38 us | 1.10 ms |
#+-----------------+-------+---------------+-------------+-------------+-------------+
#3 rows in set (0,02 sec)
#
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
@ -3846,18 +4000,72 @@ sub mysqsl_pfs {
##################################################################################
#wait_classes_global_by_latency
subheaderprint "Performance schema: Latest FILE IO by latency";
#ysql> select * from wait_classes_global_by_latency;
#-----------------+-------+---------------+-------------+-------------+-------------+
# event_class | total | total_latency | min_latency | avg_latency | max_latency |
#-----------------+-------+---------------+-------------+-------------+-------------+
# wait/io/file | 15381 | 1.23 s | 0 ps | 80.12 us | 230.64 ms |
# wait/io/table | 59 | 7.57 ms | 5.45 us | 128.24 us | 3.95 ms |
# wait/lock/table | 69 | 3.22 ms | 658.84 ns | 46.64 us | 1.10 ms |
#-----------------+-------+---------------+-------------+-------------+-------------+
# rows in set (0,00 sec)
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
##################################################################################
#waits_by_host_by_latency
subheaderprint "Performance schema: Latest FILE IO by latency";
#+---------------+---------------------+------+-----+---------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+---------------+---------------------+------+-----+---------+-------+
#| host | varchar(60) | YES | | NULL | |
#| event | varchar(128) | NO | | NULL | |
#| total | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| avg_latency | text | YES | | NULL | |
#| max_latency | text | YES | | NULL | |
#+---------------+---------------------+------+-----+---------+-------+
#6 rows in set (0,00 sec)
#
#mysql> select * from waits_by_host_by_latency;
#+------------+--------------------------------------+-------+---------------+-------------+-------------+
#| host | event | total | total_latency | avg_latency | max_latency |
#+------------+--------------------------------------+-------+---------------+-------------+-------------+
#| background | wait/io/file/innodb/innodb_data_file | 3557 | 542.77 ms | 152.59 us | 230.64 ms |
#| background | wait/io/file/sql/FRM | 1365 | 299.94 ms | 219.74 us | 57.13 ms |
#| background | wait/io/file/innodb/innodb_log_file | 22 | 117.31 ms | 5.33 ms | 67.12 ms |
#| background | wait/io/file/sql/ERRMSG | 5 | 40.72 ms | 8.14 ms | 20.47 ms |
#| background | wait/io/file/myisam/kfile | 33 | 20.30 ms | 615.27 us | 13.90 ms |
#| background | wait/io/file/myisam/dfile | 24 | 6.38 ms | 265.94 us | 2.20 ms |
#| background | wait/io/file/sql/casetest | 15 | 3.82 ms | 254.61 us | 3.40 ms |
#| background | wait/io/file/mysys/charset | 3 | 3.51 ms | 1.17 ms | 3.46 ms |
#| background | wait/io/file/mysys/cnf | 5 | 1.72 ms | 344.81 us | 1.61 ms |
#| background | wait/io/file/sql/pid | 3 | 59.35 us | 19.78 us | 41.86 us |
#| background | wait/io/file/sql/global_ddl_log | 2 | 50.55 us | 25.28 us | 47.35 us |
#| localhost | wait/io/file/sql/FRM | 702 | 74.00 ms | 105.41 us | 4.04 ms |
#| localhost | wait/io/file/myisam/dfile | 7845 | 62.58 ms | 7.98 us | 4.95 ms |
#| localhost | wait/io/file/sql/io_cache | 256 | 17.74 ms | 69.28 us | 1.19 ms |
#| localhost | wait/io/file/innodb/innodb_data_file | 76 | 14.54 ms | 191.30 us | 2.79 ms |
#| localhost | wait/io/table/sql/handler | 54 | 7.34 ms | 135.89 us | 3.95 ms |
#| localhost | wait/io/file/sql/file_parser | 328 | 7.01 ms | 21.37 us | 840.04 us |
#| localhost | wait/io/file/csv/data | 163 | 2.61 ms | 15.99 us | 859.49 us |
#| localhost | wait/lock/table/sql/handler | 63 | 2.29 ms | 36.38 us | 1.10 ms |
#| localhost | wait/io/file/myisam/kfile | 12 | 1.65 ms | 137.40 us | 565.79 us |
#| localhost | wait/io/file/csv/metadata | 8 | 1.51 ms | 188.29 us | 529.71 us |
#| localhost | wait/io/file/sql/dbopt | 16 | 1.26 ms | 78.96 us | 821.28 us |
#| localhost | wait/io/file/archive/data | 7 | 566.20 us | 80.89 us | 449.58 us |
#+------------+--------------------------------------+-------+---------------+-------------+-------------+
#23 rows in set (0,01 sec)
#
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
@ -3865,18 +4073,89 @@ sub mysqsl_pfs {
##################################################################################
#waits_by_user_by_latency
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> select * from waits_by_user_by_latency;
#+------+--------------------------------------+-------+---------------+-------------+-------------+
#| user | event | total | total_latency | avg_latency | max_latency |
#+------+--------------------------------------+-------+---------------+-------------+-------------+
#| root | wait/io/file/sql/FRM | 702 | 74.00 ms | 105.41 us | 4.04 ms |
#| root | wait/io/file/myisam/dfile | 7845 | 62.58 ms | 7.98 us | 4.95 ms |
#| root | wait/io/file/sql/io_cache | 256 | 17.74 ms | 69.28 us | 1.19 ms |
#| root | wait/io/file/innodb/innodb_data_file | 76 | 14.54 ms | 191.30 us | 2.79 ms |
#| root | wait/io/table/sql/handler | 54 | 7.34 ms | 135.89 us | 3.95 ms |
#| root | wait/io/file/sql/file_parser | 328 | 7.01 ms | 21.37 us | 840.04 us |
#| root | wait/io/file/csv/data | 163 | 2.61 ms | 15.99 us | 859.49 us |
#| root | wait/lock/table/sql/handler | 63 | 2.29 ms | 36.38 us | 1.10 ms |
#| root | wait/io/file/myisam/kfile | 12 | 1.65 ms | 137.40 us | 565.79 us |
#| root | wait/io/file/csv/metadata | 8 | 1.51 ms | 188.29 us | 529.71 us |
#| root | wait/io/file/sql/dbopt | 16 | 1.26 ms | 78.96 us | 821.28 us |
#| root | wait/io/file/archive/data | 7 | 566.20 us | 80.89 us | 449.58 us |
#+------+--------------------------------------+-------+---------------+-------------+-------------+
#12 rows in set (0,01 sec)
#
#mysql> desc waits_by_user_by_latency;
#+---------------+---------------------+------+-----+---------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+---------------+---------------------+------+-----+---------+-------+
#| user | varchar(32) | YES | | NULL | |
#| event | varchar(128) | NO | | NULL | |
#| total | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| avg_latency | text | YES | | NULL | |
#| max_latency | text | YES | | NULL | |
#+---------------+---------------------+------+-----+---------+-------+
#6 rows in set (0,00 sec)
#
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}
infoprint "No information found or indicators desactivated." if ($nbL == 1);
##################################################################################
#waits_global_by_latency
subheaderprint "Performance schema: Latest FILE IO by latency";
#mysql> select * from waits_global_by_latency;
#+--------------------------------------+-------+---------------+-------------+-------------+
#| events | total | total_latency | avg_latency | max_latency |
#+--------------------------------------+-------+---------------+-------------+-------------+
#| wait/io/file/innodb/innodb_data_file | 3636 | 557.43 ms | 153.31 us | 230.64 ms |
#| wait/io/file/sql/FRM | 2167 | 375.60 ms | 173.33 us | 57.13 ms |
#| wait/io/file/innodb/innodb_log_file | 22 | 117.31 ms | 5.33 ms | 67.12 ms |
#| wait/io/file/myisam/dfile | 7869 | 68.97 ms | 8.76 us | 4.95 ms |
#| wait/io/file/sql/ERRMSG | 5 | 40.72 ms | 8.14 ms | 20.47 ms |
#| wait/io/file/myisam/kfile | 45 | 21.95 ms | 487.84 us | 13.90 ms |
#| wait/io/file/sql/io_cache | 256 | 17.74 ms | 69.28 us | 1.19 ms |
#| wait/io/table/sql/handler | 54 | 7.34 ms | 135.89 us | 3.95 ms |
#| wait/io/file/sql/file_parser | 228 | 5.35 ms | 23.48 us | 840.04 us |
#| wait/io/file/sql/casetest | 15 | 3.82 ms | 254.61 us | 3.40 ms |
#| wait/io/file/mysys/charset | 3 | 3.51 ms | 1.17 ms | 3.46 ms |
#| wait/io/file/csv/data | 163 | 2.61 ms | 15.99 us | 859.49 us |
#| wait/lock/table/sql/handler | 63 | 2.29 ms | 36.38 us | 1.10 ms |
#| wait/io/file/mysys/cnf | 5 | 1.72 ms | 344.81 us | 1.61 ms |
#| wait/io/file/csv/metadata | 8 | 1.51 ms | 188.29 us | 529.71 us |
#| wait/io/file/sql/dbopt | 16 | 1.26 ms | 78.96 us | 821.28 us |
#| wait/io/file/archive/data | 7 | 566.20 us | 80.89 us | 449.58 us |
#| wait/io/file/sql/pid | 3 | 59.35 us | 19.78 us | 41.86 us |
#| wait/io/file/sql/global_ddl_log | 2 | 50.55 us | 25.28 us | 47.35 us |
#+--------------------------------------+-------+---------------+-------------+-------------+
#19 rows in set (0,01 sec)
#
#mysql> desc waits_global_by_latency
# -> ;
#+---------------+---------------------+------+-----+---------+-------+
#| Field | Type | Null | Key | Default | Extra |
#+---------------+---------------------+------+-----+---------+-------+
#| events | varchar(128) | NO | | NULL | |
#| total | bigint(20) unsigned | NO | | NULL | |
#| total_latency | text | YES | | NULL | |
#| avg_latency | text | YES | | NULL | |
#| max_latency | text | YES | | NULL | |
#+---------------+---------------------+------+-----+---------+-------+
#5 rows in set (0,00 sec)
#
subheaderprint "Performance schema: XXXXXXX";
$nbL=1;
for my $lQuery(select_array ('select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;')) {
for my $lQuery(select_array ('select "none";')) {
infoprint " +-- $nbL: $lQuery";
$nbL++;
}