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saza-ku / isucon13

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11250401 #37

Open saza-ku opened 10 months ago

saza-ku commented 10 months ago

isucon1

alp

+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+
| COUNT | METHOD |                   URI                    |  MIN  |  MAX  |   SUM   |  AVG  |  P99  |
+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+
| 4573  | GET    | /api/user/.+/icon                        | 0.004 | 0.696 | 203.644 | 0.045 | 0.264 |
| 158   | GET    | /api/livestream/.+                       | 0.004 | 3.064 | 147.968 | 0.937 | 3.036 |
| 473   | GET    | /api/livestream/.+/livecomment           | 0.004 | 1.724 | 146.828 | 0.310 | 1.504 |
| 504   | GET    | /api/livestream/.+/reaction              | 0.004 | 1.868 | 131.388 | 0.261 | 1.304 |
| 567   | POST   | /api/livestream/.+/livecomment           | 0.008 | 0.432 | 59.784  | 0.105 | 0.308 |
| 400   | POST   | /api/register                            | 0.004 | 0.460 | 47.316  | 0.118 | 0.408 |
| 164   | POST   | /api/livestream/.+                       | 0.048 | 0.800 | 45.844  | 0.280 | 0.760 |
| 404   | POST   | /api/icon                                | 0.004 | 0.704 | 31.224  | 0.077 | 0.392 |
| 443   | POST   | /api/livestream/.+/reaction              | 0.004 | 0.516 | 30.304  | 0.068 | 0.304 |
| 224   | GET    | /api/livestream                          | 0.004 | 0.372 | 19.568  | 0.087 | 0.344 |
| 404   | POST   | /api/login                               | 0.004 | 0.288 | 16.484  | 0.041 | 0.260 |
| 173   | GET    | /api/livestream/.+/report                | 0.004 | 0.524 | 9.812   | 0.057 | 0.492 |
| 128   | GET    | /api/livestream/.+/ngwords               | 0.004 | 0.268 | 8.812   | 0.069 | 0.264 |
| 54    | POST   | /api/livestream/.+/livecomment/.+/report | 0.004 | 0.488 | 6.004   | 0.111 | 0.488 |
| 147   | GET    | /api/tag                                 | 0.004 | 0.224 | 5.476   | 0.037 | 0.196 |
| 84    | POST   | /api/livestream/.+/moderate              | 0.004 | 0.324 | 3.644   | 0.043 | 0.324 |
| 44    | POST   | /api/livestream/.+/enter                 | 0.008 | 0.224 | 2.036   | 0.046 | 0.224 |
| 35    | DELETE | /api/livestream/.+/exit                  | 0.004 | 0.300 | 1.740   | 0.050 | 0.300 |
| 9     | GET    | /api/user/.+/statistics                  | 0.024 | 0.268 | 1.352   | 0.150 | 0.268 |
| 7     | GET    | /api/user/.+/livestream                  | 0.084 | 0.228 | 0.808   | 0.115 | 0.228 |
| 8     | GET    | /api/user/.+/theme                       | 0.004 | 0.140 | 0.408   | 0.051 | 0.140 |
| 2     | GET    | /api/livestream/.+/statistics            | 0.028 | 0.028 | 0.056   | 0.028 | 0.028 |
| 4     | GET    | /api/user/.+                             | 0.004 | 0.004 | 0.012   | 0.003 | 0.004 |
| 1     | GET    | /api/payment                             | 0.004 | 0.004 | 0.004   | 0.004 | 0.004 |
+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+

slow query

explain

Reading from STDIN ...

# No events processed.

netdata

http://localhost:19991/#menu_services;after=1700884909167;before=1700884985326

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon1/pprof/11250401
saza-ku commented 10 months ago

isucon2

alp

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

slow query

Count: 36064  Time=0.00s (56s)  Lock=0.00s (0s)  Rows=0.1 (3012), 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: 24872  Time=0.00s (36s)  Lock=0.00s (0s)  Rows=0.5 (12481), 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: 45324  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: 397  Time=0.00s (1s)  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: 794  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.5 (397), 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: 95559  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  #

Count: 397  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  commit

Count: 397  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: 397  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=1.0 (397), isudns[isudns]@isucon1
  select id,name,master,last_check,notified_serial,type,options,catalog,account from domains where name='S'

Count: 795  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 ...

# 12.5s user time, 80ms system time, 36.75M rss, 51.07M vsz
# Current date: Sat Nov 25 04:03:24 2023
# Hostname: ip-192-168-0-12
# Files: STDIN
# Overall: 205.40k total, 20 unique, 2.50k QPS, 1.25x concurrency ________
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:03:11
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time           103s     1us    12ms   499us     2ms   708us    89us
# Lock time          146ms       0     3ms       0     1us    12us     1us
# Rows sent         15.91k       0       1    0.08    0.99    0.27       0
# Rows examine      89.25M       0   1.64k  455.64   1.53k  678.17       0
# Query size        16.37M       5     219   83.55  151.03   48.83  112.70

# Profile
# Rank Query ID                      Response time Calls R/Call V/M   Item
# ==== ============================= ============= ===== ====== ===== ====
#    1 0x42EF7D7D98FBCC9723BF896E... 56.9088 55.5% 36064 0.0016  0.00 SELECT records
#    2 0x3D83BC87F3B3A00D571FFC81... 36.5413 35.6% 24872 0.0015  0.00 SELECT records
#    3 0x22279D81D51006139E0C7640...  4.9361  4.8% 45324 0.0001  0.00 SELECT domains domainmetadata
#    4 0x859BBB7E9D760686137A9444...  1.3927  1.4%   397 0.0035  0.00 DELETE records
# MISC 0xMISC                         2.7312  2.7% 98743 0.0000   0.0 <16 ITEMS>

# Query 1: 530.35 QPS, 0.84x concurrency, ID 0x42EF7D7D98FBCC9723BF896EBFC51D24 at byte 7595551
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         17   36064
# Exec time     55     57s   704us     8ms     2ms     2ms   358us     2ms
# Lock time     30    44ms       0     2ms     1us     1us    13us     1us
# Rows sent     18   2.94k       0       1    0.08    0.99    0.27       0
# Rows examine  58  51.84M   1.25k   1.64k   1.47k   1.61k  106.36   1.46k
# Query size    29   4.91M     129     219  142.65  158.58   12.32  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='ebi2ru69cwjkkp0.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='ebi2ru69cwjkkp0.u.isucon.dev' and domain_id=4"] at /usr/bin/pt-query-digest line 7796.

# Query 2: 365.76 QPS, 0.54x concurrency, ID 0x3D83BC87F3B3A00D571FFC8104A6E50C at byte 2800419
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         12   24872
# Exec time     35     37s   658us    12ms     1ms     2ms   336us     1ms
# Lock time     19    28ms       0   155us     1us     1us     1us     1us
# Rows sent     76  12.19k       0       1    0.50    0.99    0.50    0.99
# Rows examine  40  35.73M   1.25k   1.64k   1.47k   1.61k  106.82   1.46k
# Query size    19   3.24M     126     218  136.63  151.03   11.74  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='vjfhqwlecs4h9z2bqg0zu6q0.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='vjfhqwlecs4h9z2bqg0zu6q0.u.isucon.dev'"] at /usr/bin/pt-query-digest line 7796.

# Query 3: 666.53 QPS, 0.07x concurrency, ID 0x22279D81D51006139E0C76405B54C261 at byte 5485870
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         22   45324
# Exec time      4      5s    72us     4ms   108us   125us    76us    98us
# Lock time     42    62ms       0   956us     1us     1us     4us     1us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine   0       0       0       0       0       0       0       0
# Query size    30   4.93M     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: 5.84 QPS, 0.02x concurrency, ID 0x859BBB7E9D760686137A944406874C4D at byte 34829590
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0     397
# Exec time      1      1s     2ms    10ms     4ms     4ms   658us     3ms
# Lock time      7    11ms       0     3ms    28us     1us   245us     1us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine   0 573.01k   1.25k   1.64k   1.44k   1.61k  114.79   1.39k
# Query size     0  33.21k      78      93   85.66   88.31    3.33   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='yutatanaka0.u.isucon.dev' and type='A'\G
# Converted for EXPLAIN
# EXPLAIN 
select * from  records where domain_id=4 and name='yutatanaka0.u.isucon.dev' and type='A'\G

netdata

http://localhost:19992/#menu_services;after=1700884909176;before=1700884989184

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon2/pprof/11250401
saza-ku commented 10 months ago

isucon3

alp

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

slow query

Count: 30668  Time=0.01s (159s)  Lock=0.00s (0s)  Rows=0.9 (26408), isucon[isucon]@isucon1
  SELECT image FROM icons WHERE user_id = N

Count: 26108  Time=0.00s (20s)  Lock=0.00s (0s)  Rows=1.0 (26108), isucon[isucon]@isucon1
  SELECT * FROM themes WHERE user_id = N

Count: 1508  Time=0.01s (18s)  Lock=0.00s (0s)  Rows=1.0 (1508), isucon[isucon]@isucon1
  SELECT slot FROM reservation_slots WHERE start_at = N AND end_at = N

Count: 567  Time=0.03s (14s)  Lock=0.00s (0s)  Rows=0.1 (29), isucon[isucon]@isucon1
  SELECT id, user_id, livestream_id, word FROM ng_words WHERE user_id = N AND livestream_id = N

Count: 74313  Time=0.00s (7s)  Lock=0.00s (0s)  Rows=1.0 (74313), isucon[isucon]@isucon1
  SELECT * FROM tags WHERE id = N

Count: 240  Time=0.03s (7s)  Lock=0.00s (0s)  Rows=1.1 (259), isucon[isucon]@isucon1
  SELECT * FROM livestreams WHERE user_id = N

Count: 161  Time=0.04s (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: 162  Time=0.03s (5s)  Lock=0.00s (0s)  Rows=9.3 (1508), isucon[isucon]@isucon1
  SELECT * FROM reservation_slots WHERE start_at >= N AND end_at <= N FOR UPDATE

Count: 17430  Time=0.00s (5s)  Lock=0.00s (0s)  Rows=4.3 (74313), isucon[isucon]@isucon1
  SELECT * FROM livestream_tags WHERE livestream_id = N

Count: 404  Time=0.01s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@isucon1
  INSERT INTO icons (user_id, icon_path, image) VALUES (N, 'S', _binary'S')

explain

Reading from STDIN ...

# 14.4s user time, 120ms system time, 38.76M rss, 53.06M vsz
# Current date: Sat Nov 25 04:03:29 2023
# Hostname: ip-192-168-0-13
# Files: STDIN
# Overall: 216.59k total, 64 unique, 2.52k QPS, 3.11x concurrency ________
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:03:15
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time           267s     1us    80ms     1ms     7ms     4ms   103us
# Lock time          632ms       0    44ms     2us     1us   197us     1us
# Rows sent        418.03k       0   7.32k    1.98    4.96   35.61    0.99
# Rows examine      63.17M       0  14.01k  305.83   1.20k   1.17k    0.99
# Query size        35.24M       6 175.36k  170.63   54.21   2.98k   34.95

# Profile
# Rank Query ID                     Response time  Calls  R/Call V/M   Ite
# ==== ============================ ============== ====== ====== ===== ===
#    1 0x84B457C910C4A79FC9EBECB... 160.0194 59.8%  30668 0.0052  0.01 SELECT icons
#    2 0x38BC86A45F31C6B1EE32467...  20.7905  7.8%  26108 0.0008  0.00 SELECT themes
#    3 0x59F1B6DD8D9FEC059E55B3B...  18.7840  7.0%   1508 0.0125  0.00 SELECT reservation_slots
#    4 0x64CC8A4E8E4B39020337559...  14.7059  5.5%    567 0.0259  0.00 SELECT ng_words
# MISC 0xMISC                        53.1464 19.9% 157737 0.0003   0.0 <60 ITEMS>

# Query 1: 451 QPS, 2.35x concurrency, ID 0x84B457C910C4A79FC9EBECB8B1065C66 at byte 57585876
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.01
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         14   30668
# Exec time     59    160s    44us    62ms     5ms    17ms     6ms     3ms
# Lock time      5    34ms       0     2ms     1us     1us    15us     1us
# Rows sent      6  25.79k       0       1    0.86    0.99    0.34    0.99
# Rows examine   8   5.21M       0     389  178.15  346.17  109.04  166.51
# Query size     3   1.28M      41      44   43.88   42.48    0.22   42.48
# 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 /*!50100 PARTITIONS*/
SELECT image FROM icons WHERE user_id = 1016\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: 386
#      filtered: 10.00
#         Extra: Using where

# Query 2: 383.94 QPS, 0.31x concurrency, ID 0x38BC86A45F31C6B1EE324671506C898A at byte 46388038
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         12   26108
# Exec time      7     21s   237us    27ms   796us     2ms   896us   568us
# Lock time      4    26ms       0   627us       0     1us     4us     1us
# Rows sent      6  25.50k       1       1       1       1       0       1
# Rows examine  46  29.51M    1000   1.36k   1.16k   1.33k  111.95   1.14k
# Query size     2   1.02M      38      41   40.89   40.45    0.57   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 
SELECT * FROM themes WHERE user_id = 1114\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: 1396
#      filtered: 10.00
#         Extra: Using where

# Query 3: 22.18 QPS, 0.28x concurrency, ID 0x59F1B6DD8D9FEC059E55B3BFD624E8C3 at byte 8714339
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0    1508
# Exec time      7     19s     2ms    41ms    12ms    23ms     7ms    12ms
# Lock time      0     5ms       0     2ms     3us     1us    66us     1us
# Rows sent      0   1.47k       1       1       1       1       0       1
# Rows examine  19  12.60M   8.55k   8.55k   8.55k   8.55k       0   8.55k
# Query size     0 126.65k      86      86      86      86       0      86
# String:
# Hosts        isucon1
# Users        isucon
# Query_time distribution
#   1us
#  10us
# 100us
#   1ms  #####################################
#  10ms  ################################################################
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'reservation_slots'\G
#    SHOW CREATE TABLE `reservation_slots`\G
# EXPLAIN 
SELECT slot FROM reservation_slots WHERE start_at = 1700953200 AND end_at = 1700956800\G
# *************************** 1. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: reservation_slots
#    partitions: NULL
#          type: ALL
# possible_keys: NULL
#           key: NULL
#       key_len: NULL
#           ref: NULL
#          rows: 8593
#      filtered: 1.00
#         Extra: Using where

# Query 4: 8.34 QPS, 0.22x concurrency, ID 0x64CC8A4E8E4B390203375597CE4D611F at byte 12087703
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T04:01:49 to 2023-11-25T04:02:57
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0     567
# Exec time      5     15s     4ms    49ms    26ms    40ms     9ms    26ms
# Lock time      0   633us       0    23us     1us     1us     1us     1us
# Rows sent      0      29       0       2    0.05       0    0.25       0
# Rows examine  12   7.75M  14.00k  14.01k  14.00k  13.78k       0  13.78k
# Query size     0  54.81k      97      99   98.99   97.36    0.27   97.36
# String:
# Hosts        isucon1
# Users        isucon
# Query_time distribution
#   1us
#  10us
# 100us
#   1ms  ###
#  10ms  ################################################################
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'ng_words'\G
#    SHOW CREATE TABLE `ng_words`\G
# EXPLAIN 
SELECT id, user_id, livestream_id, word FROM ng_words WHERE user_id = 1019 AND livestream_id = 7534\G
# *************************** 1. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: ng_words
#    partitions: NULL
#          type: ALL
# possible_keys: NULL
#           key: NULL
#       key_len: NULL
#           ref: NULL
#          rows: 14155
#      filtered: 1.00
#         Extra: Using where

netdata

http://localhost:19993/#menu_services;after=1700884909178;before=1700884989185

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon3/pprof/11250401