sql1447 - Githubissues

++ dirname ./slowquery.sh
+ cd .
+ rotate_filepath=
+ '[' 0 -eq 1 ']'
+ sudo mysqldumpslow -s t /var/log/mysql/mysql-slow.log
+ head -n 100

Reading mysql slow query log from /var/log/mysql/mysql-slow.log
Count: 14855  Time=0.01s (112s)  Lock=0.00s (0s)  Rows=0.8 (11725), isucon[isucon]@localhost
  SELECT image FROM icons WHERE user_id = N

Count: 238794  Time=0.00s (56s)  Lock=0.00s (0s)  Rows=0.4 (99451), 2users@localhost
  #

Count: 11961  Time=0.00s (27s)  Lock=0.00s (0s)  Rows=1.0 (11961), isucon[isucon]@localhost
  SELECT * FROM themes WHERE user_id = N

Count: 810  Time=0.02s (20s)  Lock=0.00s (0s)  Rows=1.0 (810), isucon[isucon]@localhost
  SELECT slot FROM reservation_slots WHERE start_at = N AND end_at = N

Count: 34423  Time=0.00s (19s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  DELETE FROM livecomments
  WHERE
  id = N AND
  livestream_id = N AND
  (SELECT COUNT(*)
  FROM
  (SELECT 'S' AS text) AS texts
  INNER JOIN
  (SELECT CONCAT('S', 'S', 'S') AS pattern) AS patterns
  ON texts.text LIKE patterns.pattern) >= N

Count: 326  Time=0.06s (18s)  Lock=0.00s (0s)  Rows=0.2 (74), isucon[isucon]@localhost
  SELECT id, user_id, livestream_id, word FROM ng_words WHERE user_id = N AND livestream_id = N

Count: 2545  Time=0.00s (9s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  COMMIT

Count: 23875  Time=0.00s (8s)  Lock=0.00s (0s)  Rows=1.0 (23875), isucon[isucon]@localhost
  SELECT * FROM tags WHERE id = N

Count: 95  Time=0.05s (5s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  UPDATE reservation_slots SET slot = slot - N WHERE start_at >= N AND end_at <= N

Count: 97  Time=0.05s (4s)  Lock=0.00s (0s)  Rows=8.4 (811), isucon[isucon]@localhost
  SELECT * FROM reservation_slots WHERE start_at >= N AND end_at <= N FOR UPDATE

Count: 11720  Time=0.00s (4s)  Lock=0.00s (0s)  Rows=1.0 (11720), isucon[isucon]@localhost
  SELECT * FROM users WHERE id = N

Count: 236  Time=0.02s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@localhost
  delete from records where domain_id=N and name='S' and type='S'

Count: 86  Time=0.05s (4s)  Lock=0.00s (0s)  Rows=1.6 (137), isucon[isucon]@localhost
  SELECT * FROM livestreams WHERE user_id = N

Count: 6696  Time=0.00s (4s)  Lock=0.00s (0s)  Rows=3.6 (23875), isucon[isucon]@localhost
  SELECT * FROM livestream_tags WHERE livestream_id = N

Count: 1000  Time=0.00s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  INSERT INTO users (id, name, display_name, description, password) VALUES (N, 'S', 'S', 'S', 'S')

Count: 235  Time=0.01s (2s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  INSERT INTO icons (user_id, image) VALUES (N, 'S')

Count: 472  Time=0.01s (2s)  Lock=0.00s (0s)  Rows=0.5 (236), isudns[isudns]@localhost
  SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=N and type='S' and name='S' and domain_id=N

Count: 5062  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=1.0 (5062), isucon[isucon]@localhost
  SELECT * FROM livestreams WHERE id = N

Count: 31  Time=0.07s (2s)  Lock=0.00s (0s)  Rows=0.1 (3), isucon[isucon]@localhost
  SELECT * FROM ng_words WHERE user_id = N AND livestream_id = N ORDER BY created_at DESC

Count: 237  Time=0.01s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@localhost
  commit

Count: 510  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  INSERT INTO themes (user_id, dark_mode) VALUES (N, true)

Count: 490  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  INSERT INTO themes (user_id, dark_mode) VALUES (N, false)

Count: 236  Time=0.01s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@localhost
  SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=N and name='S' and domain_id=N

Count: 2917  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  ROLLBACK

Count: 235  Time=0.01s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  DELETE FROM icons WHERE user_id = N

Count: 3156  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=1.0 (3155), isucon[isucon]@localhost
  SELECT * FROM users WHERE name = 'S'

Count: 23  Time=0.06s (1s)  Lock=0.00s (0s)  Rows=1.4 (32), isucon[isucon]@localhost
  SELECT * FROM ng_words WHERE livestream_id = N

Count: 293  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=7.4 (2160), isucon[isucon]@localhost
  SELECT * FROM livecomments WHERE livestream_id = N ORDER BY created_at DESC

Count: 5471  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@localhost
  START TRANSACTION

Count: 326  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=6.0 (1967), isucon[isucon]@localhost
  SELECT * FROM reactions WHERE livestream_id = N ORDER BY created_at DESC

Count: 237  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=1.0 (237), isudns[isudns]@localhost
hedwig100 / isucon13

sql1447 #14
