MariaDB/query performance/coreproduction-20151020
< MariaDB | query performance
db1072
# 80.5s user time, 280ms system time, 37.92M rss, 109.40M vsz # Current date: Tue Oct 20 16:58:18 2015 # Hostname: db1072 # Files: slow.log # Overall: 401.86k total, 392 unique, 1.19k QPS, 0.24x concurrency _______ # Time range: 2015-10-20 16:49:22 to 16:55:00 # Attribute total min max avg 95% stddev median # ============ ======= ======= ======= ======= ======= ======= ======= # Exec time 80s 1us 718ms 198us 301us 2ms 138us # Lock time 17s 0 4ms 43us 84us 31us 40us # Rows sent 566.25k 0 1.36k 1.44 1.96 11.43 0.99 # Rows examine 665.93k 0 14.01k 1.70 3.89 27.05 0.99 # Query size 102.27M 17 29.42k 266.85 511.45 341.31 202.40 # Profile # Rank Query ID Response time Calls R/Call V/M Item # ==== ================== ============= ===== ====== ===== =============== # 1 0x292432918989C0B8 19.2854 24.2% 74941 0.0003 0.00 SELECT revision page user # 2 0x10806A876ECCC9F8 12.6303 15.9% 96826 0.0001 0.00 SELECT page # 3 0xFF2878F771226A9B 4.0687 5.1% 25934 0.0002 0.00 SELECT page revision # 4 0x305F18D8941EB073 4.0261 5.1% 6128 0.0007 0.01 SELECT revision page user # 5 0xFD2F0603A3CAE705 3.2801 4.1% 14268 0.0002 0.00 SELECT page revision # 6 0x338E17B7702E09AE 2.8383 3.6% 18483 0.0002 0.00 SELECT page_restrictions # 7 0x3D3565A9CA3DE180 2.5850 3.2% 16872 0.0002 0.00 SELECT page # 8 0x001DE67B89F362F5 2.3239 2.9% 45 0.0516 0.08 SELECT change_tag revision user # 9 0xBA14B8AF1E21D52B 1.5142 1.9% 13150 0.0001 0.00 SELECT msg_resource # 10 0x4CF9D9B76BE929F4 1.4988 1.9% 2248 0.0007 0.00 SELECT page_props # 11 0x83A2FD11148F7465 1.3796 1.7% 1247 0.0011 0.01 SELECT user_properties # 12 0x977063FE05BA1F06 1.3338 1.7% 2653 0.0005 0.00 SELECT page page_props # 13 0x7C1D0C83049D7D32 1.2195 1.5% 284 0.0043 0.01 SELECT text # 14 0x0ABACC4F38B09BF6 1.1583 1.5% 46 0.0252 0.43 SELECT externallinks [...] # Query 1: 221.72 QPS, 0.06x concurrency, ID 0x292432918989C0B8 at byte 77977576 # This item is included in the report because it matches --limit. # Scores: V/M = 0.00 # Time range: 2015-10-20 16:49:22 to 16:55:00 # Attribute pct total min max avg 95% stddev median # ============ === ======= ======= ======= ======= ======= ======= ======= # Count 18 74941 # Exec time 24 19s 142us 42ms 257us 348us 261us 236us # Lock time 31 5s 37us 896us 72us 108us 20us 69us # Rows sent 12 71.84k 0 1 0.98 0.99 0.13 0.99 # Rows examine 10 71.84k 0 1 0.98 0.99 0.13 0.99 # Query size 36 37.63M 501 610 526.52 537.02 9.63 511.45 # String: # Databases enwiki # Hosts # Users wikiuser # Query_time distribution # 1us # 10us # 100us ################################################################ # 1ms # # 10ms # # 100ms # 1s # 10s+ # Tables # SHOW TABLE STATUS FROM `enwiki` LIKE 'revision'\G # SHOW CREATE TABLE `enwiki`.`revision`\G # SHOW TABLE STATUS FROM `enwiki` LIKE 'page'\G # SHOW CREATE TABLE `enwiki`.`page`\G # SHOW TABLE STATUS FROM `enwiki` LIKE 'user'\G # EXPLAIN /*!50100 PARTITIONS*/ SELECT /* Revision::fetchFromConds [SANITIZED] */ rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_user_text,rev_user,rev_minor_edit,rev_deleted,rev_len,rev_parent_id, rev_sha1,rev_content_format,rev_content_model,page_namespace,page_title,page_id,page_latest,page_is_redirect,page_len,user_name FROM `revision` INNER JOIN `page` ON ((page_id = rev_page)) LEFT JOIN `user` ON ((rev_user != 0) AND (user_id = rev_user)) WHERE page_namespace = '2' AND page_title = '[SANITIZED]/Userboxes/Drama/User_Rome' AND (rev_id=page_latest) LIMIT 1\G # Query 2: 286.47 QPS, 0.04x concurrency, ID 0x10806A876ECCC9F8 at byte 117203464 # This item is included in the report because it matches --limit. # Scores: V/M = 0.00 # Time range: 2015-10-20 16:49:22 to 16:55:00 # Attribute pct total min max avg 95% stddev median # ============ === ======= ======= ======= ======= ======= ======= ======= # Count 24 96826 # Exec time 15 13s 63us 4ms 130us 185us 37us 119us # Lock time 23 4s 21us 4ms 41us 66us 19us 38us # Rows sent 15 89.48k 0 1 0.95 0.99 0.22 0.99 # Rows examine 13 89.48k 0 1 0.95 0.99 0.22 0.99 # Query size 17 18.40M 173 420 199.30 212.52 11.19 192.76 # String: # Databases enwiki # Hosts # Users wikiuser # Query_time distribution # 1us # 10us ############ # 100us ################################################################ # 1ms # # 10ms # 100ms # 1s # 10s+ # Tables # SHOW TABLE STATUS FROM `enwiki` LIKE 'page'\G # SHOW CREATE TABLE `enwiki`.`page`\G # EXPLAIN /*!50100 PARTITIONS*/ SELECT /* LinkCache::addLinkObj [SANITIZED] */ page_id,page_len,page_is_redirect,page_latest,page_content_model FROM `page` WHERE page_namespace = '828' AND page_title = 'Message_box/configuration' LIMIT 1\G # Query 3: 76.73 QPS, 0.01x concurrency, ID 0xFF2878F771226A9B at byte 28856521 # This item is included in the report because it matches --limit. # Scores: V/M = 0.00 # Time range: 2015-10-20 16:49:22 to 16:55:00 # Attribute pct total min max avg 95% stddev median # ============ === ======= ======= ======= ======= ======= ======= ======= # Count 6 25934 # Exec time 5 4s 78us 1ms 156us 224us 44us 144us # Lock time 7 1s 23us 531us 48us 76us 16us 44us # Rows sent 3 21.87k 0 1 0.86 0.99 0.34 0.99 # Rows examine 3 21.87k 0 1 0.86 0.99 0.34 0.99 # Query size 5 5.98M 222 265 241.64 246.02 7.11 234.30 # String: # Databases enwiki # Hosts # Users wikiuser # Query_time distribution # 1us # 10us ## # 100us ################################################################ # 1ms # # 10ms # 100ms # 1s # 10s+ # Tables # SHOW TABLE STATUS FROM `enwiki` LIKE 'page'\G # SHOW CREATE TABLE `enwiki`.`page`\G # SHOW TABLE STATUS FROM `enwiki` LIKE 'revision'\G # SHOW CREATE TABLE `enwiki`.`revision`\G # EXPLAIN /*!50100 PARTITIONS*/ SELECT /* ResourceLoaderWikiModule::getTitleInfo [SANITIZED] */ page_namespace,page_title,rev_len,rev_sha1 FROM `page` INNER JOIN `revision` ON ((page_latest=rev_id)) WHERE (page_namespace = '8' AND page_title = 'Gadget-switcher.js')\G # Query 4: 18.13 QPS, 0.01x concurrency, ID 0x305F18D8941EB073 at byte 84896993 # This item is included in the report because it matches --limit. # Scores: V/M = 0.01 # Time range: 2015-10-20 16:49:22 to 16:55:00 # Attribute pct total min max avg 95% stddev median # ============ === ======= ======= ======= ======= ======= ======= ======= # Count 1 6128 # Exec time 5 4s 138us 76ms 656us 4ms 2ms 236us # Lock time 2 447ms 41us 511us 72us 108us 20us 69us # Rows sent 1 5.98k 1 1 1 1 0 1 # Rows examine 0 5.98k 1 1 1 1 0 1 # Query size 2 2.80M 474 497 479.88 487.09 7.34 463.90 # String: # Databases enwiki # Hosts # Users wikiuser # Query_time distribution # 1us # 10us # 100us ################################################################ # 1ms #### # 10ms # # 100ms # 1s # 10s+ # Tables # SHOW TABLE STATUS FROM `enwiki` LIKE 'revision'\G # SHOW CREATE TABLE `enwiki`.`revision`\G # SHOW TABLE STATUS FROM `enwiki` LIKE 'page'\G # SHOW CREATE TABLE `enwiki`.`page`\G # SHOW TABLE STATUS FROM `enwiki` LIKE 'user'\G # SHOW CREATE TABLE `enwiki`.`user`\G # EXPLAIN /*!50100 PARTITIONS*/ SELECT /* Revision::fetchFromConds */ rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_user_text,rev_user,rev_minor_edit,rev_deleted,rev_len,rev_parent_id, rev_sha1,rev_content_format,rev_content_model,page_namespace,page_title,page_id,page_latest,page_is_redirect,page_len,user_name FROM `revision` INNER JOIN `page` ON ((page_id = rev_page)) LEFT JOIN `user` ON ((rev_user != 0) AND (user_id = rev_user)) WHERE page_id = '2381544' AND rev_id = '583867364' LIMIT 1\G