11250739 - Githubissues

saza-ku commented 8 months ago

isucon1

alp

+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+
| COUNT | METHOD |                   URI                    |  MIN  |  MAX  |   SUM   |  AVG  |  P99  |
+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+
| 20047 | GET    | /api/user/.+/icon                        | 0.004 | 0.204 | 231.472 | 0.012 | 0.044 |
| 2431  | POST   | /api/livestream/.+/livecomment           | 0.008 | 0.152 | 86.420  | 0.036 | 0.072 |
| 2269  | GET    | /api/livestream/.+/reaction              | 0.004 | 0.168 | 81.720  | 0.036 | 0.076 |
| 2240  | GET    | /api/livestream/.+/livecomment           | 0.004 | 0.112 | 75.840  | 0.034 | 0.076 |
| 2053  | POST   | /api/livestream/.+/reaction              | 0.004 | 0.184 | 68.908  | 0.034 | 0.076 |
| 555   | POST   | /api/register                            | 0.004 | 0.260 | 57.720  | 0.104 | 0.152 |
| 1168  | GET    | /api/livestream/.+                       | 0.004 | 0.112 | 56.512  | 0.048 | 0.088 |
| 600   | GET    | /api/livestream                          | 0.004 | 0.292 | 33.320  | 0.056 | 0.184 |
| 472   | POST   | /api/livestream/.+                       | 0.024 | 0.200 | 31.456  | 0.067 | 0.116 |
| 1486  | GET    | /api/livestream/.+/report                | 0.004 | 0.088 | 19.020  | 0.013 | 0.056 |
| 731   | POST   | /api/livestream/.+/moderate              | 0.008 | 0.076 | 17.080  | 0.023 | 0.056 |
| 1107  | GET    | /api/livestream/.+/ngwords               | 0.004 | 0.176 | 12.312  | 0.011 | 0.040 |
| 591   | POST   | /api/icon                                | 0.000 | 0.076 | 9.392   | 0.016 | 0.052 |
| 561   | POST   | /api/login                               | 0.004 | 0.152 | 6.972   | 0.012 | 0.052 |
| 472   | GET    | /api/tag                                 | 0.004 | 0.076 | 5.932   | 0.013 | 0.056 |
| 24    | GET    | /api/user/.+/livestream                  | 0.048 | 0.256 | 2.976   | 0.124 | 0.256 |
| 26    | GET    | /api/user/.+/statistics                  | 0.024 | 0.172 | 2.624   | 0.101 | 0.172 |
| 200   | POST   | /api/livestream/.+/enter                 | 0.004 | 0.048 | 2.536   | 0.013 | 0.044 |
| 57    | POST   | /api/livestream/.+/livecomment/.+/report | 0.004 | 0.080 | 2.284   | 0.040 | 0.080 |
| 189   | DELETE | /api/livestream/.+/exit                  | 0.004 | 0.048 | 2.124   | 0.011 | 0.048 |
| 32    | GET    | /api/livestream/.+/statistics            | 0.004 | 0.112 | 1.060   | 0.033 | 0.112 |
| 25    | GET    | /api/user/.+/theme                       | 0.004 | 0.048 | 0.376   | 0.015 | 0.048 |
| 5     | GET    | /api/user/.+                             | 0.000 | 0.004 | 0.004   | 0.001 | 0.004 |
| 1     | GET    | /api/payment                             | 0.000 | 0.000 | 0.000   | 0.000 | 0.000 |
+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+

slow query

explain

Reading from STDIN ...

# No events processed.

netdata

http://localhost:19991/#menu_services;after=1700897992805;before=1700898068776

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon1/pprof/11250739

saza-ku commented 8 months ago

isucon2

alp

+-------+--------+-----+-----+-----+-----+-----+-----+
| COUNT | METHOD | URI | MIN | MAX | SUM | AVG | P99 |
+-------+--------+-----+-----+-----+-----+-----+-----+
+-------+--------+-----+-----+-----+-----+-----+-----+

slow query

Count: 33416  Time=0.00s (55s)  Lock=0.00s (0s)  Rows=0.2 (6100), isudns[isudns]@isucon1
  SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=N and name='S' and domain_id=N

Count: 24247  Time=0.00s (37s)  Lock=0.00s (0s)  Rows=0.5 (12276), isudns[isudns]@isucon1
  SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=N and type='S' and name='S'

Count: 40792  Time=0.00s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  select kind,content from domains, domainmetadata where domainmetadata.domain_id=domains.id and name='S'

Count: 553  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  delete from records where domain_id=N and name='S' and type='S'

Count: 1106  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.5 (553), isudns[isudns]@isucon1
  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: 91915  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  #

Count: 553  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  insert into records (content,ttl,prio,type,domain_id,disabled,name,ordername,auth) values ('S',N,N,'S',N,N,'S',NULL,N)

Count: 553  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  commit

Count: 553  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=1.0 (553), isudns[isudns]@isucon1
  select id,name,master,last_check,notified_serial,type,options,catalog,account from domains where name='S'

Count: 1107  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED

explain

Reading from STDIN ...

# 12.2s user time, 50ms system time, 36.75M rss, 51.07M vsz
# Current date: Sat Nov 25 07:41:27 2023
# Hostname: ip-192-168-0-12
# Files: STDIN
# Overall: 195.36k total, 21 unique, 2.12k QPS, 1.12x concurrency ________
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:41:24
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time           103s     1us    90ms   529us     2ms   857us    89us
# Lock time          154ms       0     5ms       0     1us    19us     1us
# Rows sent         19.03k       0       1    0.10    0.99    0.30       0
# Rows examine      88.54M       0   1.79k  475.21   1.69k  707.07       0
# Query size        15.38M       5     217   82.54  151.03   48.75  112.70

# Profile
# Rank Query ID                      Response time Calls R/Call V/M   Item
# ==== ============================= ============= ===== ====== ===== ====
#    1 0x42EF7D7D98FBCC9723BF896E... 55.7174 53.9% 33416 0.0017  0.00 SELECT records
#    2 0x3D83BC87F3B3A00D571FFC81... 37.5388 36.3% 24247 0.0015  0.00 SELECT records
#    3 0x22279D81D51006139E0C7640...  4.5526  4.4% 40792 0.0001  0.00 SELECT domains domainmetadata
#    4 0x859BBB7E9D760686137A9444...  2.0439  2.0%   553 0.0037  0.00 DELETE records
# MISC 0xMISC                         3.5377  3.4% 96349 0.0000   0.0 <17 ITEMS>

# Query 1: 498.75 QPS, 0.83x concurrency, ID 0x42EF7D7D98FBCC9723BF896EBFC51D24 at byte 25002114
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:40:59
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         17   33416
# Exec time     53     56s   698us    90ms     2ms     2ms   920us     2ms
# Lock time     26    41ms       0     1ms     1us     1us     8us     1us
# Rows sent     31   5.96k       0       1    0.18    0.99    0.38       0
# Rows examine  56  49.85M   1.25k   1.79k   1.53k   1.69k  149.32   1.46k
# Query size    29   4.52M     129     217  141.80  158.58   11.81  136.99
# String:
# Hosts        isucon1
# Users        isudns
# Query_time distribution
#   1us
#  10us
# 100us  #
#   1ms  ################################################################
#  10ms  #
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'records'\G
#    SHOW CREATE TABLE `records`\G
# EXPLAIN /*!50100 PARTITIONS*/
SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=0 and name='l0t8g2anljfautl8qe0.u.isucon.dev' and domain_id=4\G
# EXPLAIN failed: DBD::mysql::st execute failed: Table 'isupipe.records' doesn't exist [for Statement "EXPLAIN SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=0 and name='l0t8g2anljfautl8qe0.u.isucon.dev' and domain_id=4"] at /usr/bin/pt-query-digest line 7796.

# Query 2: 361.90 QPS, 0.56x concurrency, ID 0x3D83BC87F3B3A00D571FFC8104A6E50C at byte 38603131
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:40:59
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         12   24247
# Exec time     36     38s   655us    10ms     2ms     2ms   429us     1ms
# Lock time     18    28ms       0    91us     1us     1us       0     1us
# Rows sent     62  11.99k       0       1    0.51    0.99    0.50    0.99
# Rows examine  40  36.22M   1.25k   1.79k   1.53k   1.69k  149.70   1.46k
# Query size    20   3.13M     126     216  135.55  151.03   11.16  124.25
# String:
# Hosts        isucon1
# Users        isudns
# Query_time distribution
#   1us
#  10us
# 100us  #
#   1ms  ################################################################
#  10ms  #
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'records'\G
#    SHOW CREATE TABLE `records`\G
# EXPLAIN 
SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=0 and type='SOA' and name='amaeda0.u.isucon.dev'\G
# EXPLAIN failed: DBD::mysql::st execute failed: Table 'isupipe.records' doesn't exist [for Statement "EXPLAIN SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=0 and type='SOA' and name='amaeda0.u.isucon.dev'"] at /usr/bin/pt-query-digest line 7796.

# Query 3: 608.84 QPS, 0.07x concurrency, ID 0x22279D81D51006139E0C76405B54C261 at byte 53269933
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:40:59
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         20   40792
# Exec time      4      5s    71us     4ms   111us   125us    86us    98us
# Lock time     40    62ms       0     3ms     1us     1us    17us     1us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine   0       0       0       0       0       0       0       0
# Query size    28   4.43M     114     114     114     114       0     114
# String:
# Hosts        isucon1
# Users        isudns
# Query_time distribution
#   1us
#  10us  #######################
# 100us  ################################################################
#   1ms  #
#  10ms
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'domains'\G
#    SHOW CREATE TABLE `domains`\G
#    SHOW TABLE STATUS LIKE 'domainmetadata'\G
#    SHOW CREATE TABLE `domainmetadata`\G
# EXPLAIN 
select kind,content from domains, domainmetadata where domainmetadata.domain_id=domains.id and name='u.isucon.dev'\G
# EXPLAIN failed: DBD::mysql::st execute failed: Table 'isupipe.domains' doesn't exist [for Statement "EXPLAIN select kind,content from domains, domainmetadata where domainmetadata.domain_id=domains.id and name='u.isucon.dev'"] at /usr/bin/pt-query-digest line 7796.

# Query 4: 8.51 QPS, 0.03x concurrency, ID 0x859BBB7E9D760686137A944406874C4D at byte 52155726
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:53 to 2023-11-25T07:40:58
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0     553
# Exec time      1      2s     2ms     9ms     4ms     5ms   734us     4ms
# Lock time     13    21ms       0     5ms    38us     1us   319us     1us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine   0 840.29k   1.25k   1.79k   1.52k   1.69k  157.27   1.46k
# Query size     0  46.19k      78      93   85.52   88.31    3.38   84.10
# String:
# Hosts        isucon1
# Users        isudns
# Query_time distribution
#   1us
#  10us
# 100us
#   1ms  ################################################################
#  10ms
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'records'\G
#    SHOW CREATE TABLE `records`\G
delete from records where domain_id=4 and name='itorika0.u.isucon.dev' and type='A'\G
# Converted for EXPLAIN
# EXPLAIN 
select * from  records where domain_id=4 and name='itorika0.u.isucon.dev' and type='A'\G

netdata

http://localhost:19992/#menu_services;after=1700897992809;before=1700898072819

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon2/pprof/11250739

saza-ku commented 8 months ago

isucon3

alp

+-------+--------+-----+-----+-----+-----+-----+-----+
| COUNT | METHOD | URI | MIN | MAX | SUM | AVG | P99 |
+-------+--------+-----+-----+-----+-----+-----+-----+
+-------+--------+-----+-----+-----+-----+-----+-----+

slow query

Count: 16266  Time=0.00s (12s)  Lock=0.00s (0s)  Rows=1.0 (16266), isucon[isucon]@isucon1
  SELECT * FROM themes WHERE user_id = N

Count: 36285  Time=0.00s (8s)  Lock=0.00s (0s)  Rows=0.9 (32946), isucon[isucon]@isucon1
  SELECT icon_path FROM icons WHERE user_id = N

Count: 650  Time=0.01s (7s)  Lock=0.00s (0s)  Rows=2.4 (1551), isucon[isucon]@isucon1
  SELECT * FROM livestreams WHERE user_id = N

Count: 54324  Time=0.00s (5s)  Lock=0.00s (0s)  Rows=1.0 (54324), isucon[isucon]@isucon1
  SELECT * FROM tags WHERE id = N

Count: 469  Time=0.01s (5s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@isucon1
  UPDATE reservation_slots SET slot = slot - N WHERE start_at >= N AND end_at <= N

Count: 470  Time=0.01s (5s)  Lock=0.00s (0s)  Rows=9.9 (4635), isucon[isucon]@isucon1
  SELECT * FROM reservation_slots WHERE start_at >= N AND end_at <= N FOR UPDATE

Count: 2071  Time=0.00s (3s)  Lock=0.00s (0s)  Rows=9.3 (19297), isucon[isucon]@isucon1
  SELECT * FROM reactions WHERE livestream_id = N ORDER BY created_at DESC

Count: 20659  Time=0.00s (3s)  Lock=0.00s (0s)  Rows=1.0 (20658), isucon[isucon]@isucon1
  SELECT * FROM users WHERE name = 'S'

Count: 10968  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=5.0 (54328), isucon[isucon]@isucon1
  SELECT * FROM livestream_tags WHERE livestream_id = N

Count: 15688  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=1.0 (15688), isucon[isucon]@isucon1
  SELECT * FROM users WHERE id = N

explain

Reading from STDIN ...

# 18s user time, 70ms system time, 38.00M rss, 52.48M vsz
# Current date: Sat Nov 25 07:41:33 2023
# Hostname: ip-192-168-0-13
# Files: STDIN
# Overall: 286.44k total, 70 unique, 3.11k QPS, 0.83x concurrency ________
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:41:24
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time            77s     1us   152ms   267us   725us     1ms    80us
# Lock time          248ms       0     3ms       0     1us    14us     1us
# Rows sent          2.55M       0   7.78k    9.32    4.96  122.60    0.99
# Rows examine      58.14M       0  12.84k  212.85   1.26k  737.46    0.99
# Query size        12.29M       6     902   45.00   97.36   53.24   34.95

# Profile
# Rank Query ID                     Response time Calls  R/Call V/M   Item
# ==== ============================ ============= ====== ====== ===== ====
#    1 0x38BC86A45F31C6B1EE32467... 12.1378 15.9%  16266 0.0007  0.00 SELECT themes
#    2 0xB4FC1F99A422ACB1A54E6E2...  9.0062 11.8%  36285 0.0002  0.00 SELECT icons
#    3 0x9EAD6C0CE525E3693EE27FF...  7.5855  9.9%    650 0.0117  0.00 SELECT livestreams
#    4 0xFBC5564AE716EAE82F20BFB...  5.6366  7.4%  54324 0.0001  0.00 SELECT tags
# MISC 0xMISC                       42.1904 55.1% 178916 0.0002   0.0 <66 ITEMS>

# Query 1: 246.45 QPS, 0.18x concurrency, ID 0x38BC86A45F31C6B1EE324671506C898A at byte 17738084
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:40:58
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          5   16266
# Exec time     15     12s   239us    17ms   746us     2ms   638us   568us
# Lock time      6    16ms       0   635us     1us     1us     7us     1us
# Rows sent      0  15.88k       1       1       1       1       0       1
# Rows examine  34  19.99M    1000   1.52k   1.26k   1.46k  152.33   1.26k
# Query size     5 651.20k      38      41   40.99   40.45    0.13   40.45
# String:
# Hosts        isucon1
# Users        isucon
# Query_time distribution
#   1us
#  10us
# 100us  ################################################################
#   1ms  #########
#  10ms  #
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'themes'\G
#    SHOW CREATE TABLE `themes`\G
# EXPLAIN /*!50100 PARTITIONS*/
SELECT * FROM themes WHERE user_id = 1013\G
# *************************** 1. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: themes
#    partitions: NULL
#          type: ALL
# possible_keys: NULL
#           key: NULL
#       key_len: NULL
#           ref: NULL
#          rows: 1553
#      filtered: 10.00
#         Extra: Using where

# Query 2: 549.77 QPS, 0.14x concurrency, ID 0xB4FC1F99A422ACB1A54E6E2F01B84879 at byte 63978171
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:40:58
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         12   36285
# Exec time     11      9s    49us    12ms   248us   541us   311us   194us
# Lock time     16    40ms       0     1ms     1us     1us    12us     1us
# Rows sent      1  32.17k       0       1    0.91    0.99    0.29    0.99
# Rows examine  17   9.90M       0     545  286.14  511.45  150.42  284.79
# Query size    13   1.66M      45      48   47.92   46.83    0.21   46.83
# String:
# Hosts        isucon1
# Users        isucon
# Query_time distribution
#   1us
#  10us  #####
# 100us  ################################################################
#   1ms  #
#  10ms  #
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'icons'\G
#    SHOW CREATE TABLE `icons`\G
# EXPLAIN 
SELECT icon_path FROM icons WHERE user_id = 1025\G
# *************************** 1. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: icons
#    partitions: NULL
#          type: ALL
# possible_keys: NULL
#           key: NULL
#       key_len: NULL
#           ref: NULL
#          rows: 545
#      filtered: 10.00
#         Extra: Using where

# Query 3: 9.85 QPS, 0.11x concurrency, ID 0x9EAD6C0CE525E3693EE27FFC9AAF05A3 at byte 44458666
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:52 to 2023-11-25T07:40:58
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0     650
# Exec time      9      8s     4ms    45ms    12ms    22ms     6ms    10ms
# Lock time      0   608us       0    15us       0     1us       0     1us
# Rows sent      0   1.51k       0      21    2.39    6.98    2.81    1.96
# Rows examine   8   4.81M   7.32k   7.78k   7.58k   7.68k  169.96   7.31k
# Query size     0  29.19k      43      46   45.98   44.60    0.17   44.60
# String:
# Hosts        isucon1
# Users        isucon
# Query_time distribution
#   1us
#  10us
# 100us
#   1ms  ####################################################
#  10ms  ################################################################
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'livestreams'\G
#    SHOW CREATE TABLE `livestreams`\G
# EXPLAIN 
SELECT * FROM livestreams WHERE user_id = 1157\G
# *************************** 1. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: livestreams
#    partitions: NULL
#          type: ALL
# possible_keys: NULL
#           key: NULL
#       key_len: NULL
#           ref: NULL
#          rows: 7829
#      filtered: 10.00
#         Extra: Using where

# Query 4: 835.75 QPS, 0.09x concurrency, ID 0xFBC5564AE716EAE82F20BFB45F6C37E7 at byte 14300863
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:39:53 to 2023-11-25T07:40:58
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         18   54324
# Exec time      7      6s    42us    11ms   103us   204us   199us    69us
# Lock time     24    60ms       0     2ms     1us     1us    13us     1us
# Rows sent      2  53.05k       1       1       1       1       0       1
# Rows examine   0  53.05k       1       1       1       1       0       1
# Query size    13   1.65M      31      33   31.94   31.70    0.43   31.70
# String:
# Hosts        isucon1
# Users        isucon
# Query_time distribution
#   1us
#  10us  ################################################################
# 100us  #######
#   1ms  #
#  10ms  #
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'tags'\G
#    SHOW CREATE TABLE `tags`\G
# EXPLAIN 
SELECT * FROM tags WHERE id = 12\G
# *************************** 1. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: tags
#    partitions: NULL
#          type: const
# possible_keys: PRIMARY
#           key: PRIMARY
#       key_len: 8
#           ref: const
#          rows: 1
#      filtered: 100.00
#         Extra: NULL

netdata

http://localhost:19993/#menu_services;after=1700897992807;before=1700898072814

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon3/pprof/11250739

saza-ku / isucon13

11250739 #81

isucon1

alp

slow query

explain

netdata

pprof

isucon2

alp

slow query

explain

netdata

pprof

isucon3

alp

slow query

explain

netdata

pprof