11250750 - Githubissues

saza-ku commented 1 year ago

isucon1

alp

+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+
| COUNT | METHOD |                   URI                    |  MIN  |  MAX  |   SUM   |  AVG  |  P99  |
+-------+--------+------------------------------------------+-------+-------+---------+-------+-------+
| 28544 | GET    | /api/user/.+/icon                        | 0.000 | 0.236 | 124.568 | 0.004 | 0.028 |
| 3304  | POST   | /api/livestream/.+/livecomment           | 0.012 | 0.208 | 110.128 | 0.033 | 0.084 |
| 3169  | GET    | /api/livestream/.+/livecomment           | 0.004 | 0.156 | 102.118 | 0.032 | 0.084 |
| 3201  | GET    | /api/livestream/.+/reaction              | 0.004 | 0.236 | 98.257  | 0.031 | 0.072 |
| 2899  | POST   | /api/livestream/.+/reaction              | 0.004 | 0.272 | 86.005  | 0.030 | 0.076 |
| 1254  | GET    | /api/livestream/search                   | 0.004 | 0.148 | 58.077  | 0.046 | 0.092 |
| 545   | POST   | /api/register                            | 0.004 | 0.252 | 57.393  | 0.105 | 0.176 |
| 658   | GET    | /api/livestream                          | 0.004 | 0.212 | 33.920  | 0.052 | 0.184 |
| 476   | POST   | /api/livestream/reservation              | 0.020 | 0.168 | 31.152  | 0.065 | 0.140 |
| 1587  | GET    | /api/livestream/.+/report                | 0.004 | 0.240 | 18.818  | 0.012 | 0.060 |
| 765   | POST   | /api/livestream/.+/moderate              | 0.004 | 0.160 | 17.916  | 0.023 | 0.056 |
| 84    | GET    | /api/livestream/.+/statistics            | 0.028 | 0.308 | 12.765  | 0.152 | 0.308 |
| 1179  | GET    | /api/livestream/.+/ngwords               | 0.004 | 0.144 | 12.668  | 0.011 | 0.048 |
| 580   | POST   | /api/icon                                | 0.004 | 0.153 | 9.274   | 0.016 | 0.061 |
| 549   | POST   | /api/login                               | 0.004 | 0.236 | 6.932   | 0.013 | 0.080 |
| 485   | GET    | /api/tag                                 | 0.004 | 0.112 | 6.224   | 0.013 | 0.064 |
| 33    | GET    | /api/user/.+/statistics                  | 0.028 | 0.248 | 4.180   | 0.127 | 0.248 |
| 284   | POST   | /api/livestream/.+/enter                 | 0.004 | 0.132 | 3.613   | 0.013 | 0.060 |
| 31    | GET    | /api/user/.+/livestream                  | 0.032 | 0.232 | 3.408   | 0.110 | 0.232 |
| 274   | DELETE | /api/livestream/.+/exit                  | 0.004 | 0.132 | 3.152   | 0.012 | 0.064 |
| 57    | POST   | /api/livestream/.+/livecomment/.+/report | 0.004 | 0.108 | 2.352   | 0.041 | 0.108 |
| 32    | GET    | /api/user/.+/theme                       | 0.004 | 0.236 | 0.636   | 0.020 | 0.236 |
| 8     | GET    | /api/user/.+                             | 0.008 | 0.024 | 0.076   | 0.010 | 0.024 |
| 1     | GET    | /api/livestream/.+                       | 0.004 | 0.004 | 0.004   | 0.004 | 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=1700898648531;before=1700898724553

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon1/pprof/11250750

saza-ku commented 1 year ago

isucon2

alp

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

slow query

Count: 32617  Time=0.00s (58s)  Lock=0.00s (0s)  Rows=0.2 (6476), 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: 23819  Time=0.00s (39s)  Lock=0.00s (0s)  Rows=0.5 (12048), 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: 39548  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: 542  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: 1084  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.5 (542), 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: 94961  Time=0.00s (1s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  #

Count: 542  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=0.0 (0), isudns[isudns]@isucon1
  commit

Count: 542  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: 542  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=1.0 (542), isudns[isudns]@isucon1
  select id,name,master,last_check,notified_serial,type,options,catalog,account from domains where name='S'

Count: 1084  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 ...

# 12s user time, 70ms system time, 36.75M rss, 51.18M vsz
# Current date: Sat Nov 25 07:52:22 2023
# Hostname: ip-192-168-0-12
# Files: STDIN
# Overall: 195.83k total, 20 unique, 2.39k QPS, 1.33x concurrency ________
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:52:10
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time           109s     1us    12ms   555us     2ms   832us    89us
# Lock time          156ms       0     4ms       0     1us    17us       0
# Rows sent         19.15k       0       1    0.10    0.99    0.30       0
# Rows examine      86.43M       0   1.78k  462.79   1.69k  700.15       0
# Query size        15.16M       5     220   81.20  151.03   48.76  112.70

# Profile
# Rank Query ID                      Response time Calls R/Call V/M   Item
# ==== ============================= ============= ===== ====== ===== ====
#    1 0x42EF7D7D98FBCC9723BF896E... 58.6989 53.9% 32617 0.0018  0.00 SELECT records
#    2 0x3D83BC87F3B3A00D571FFC81... 39.6094 36.4% 23819 0.0017  0.00 SELECT records
#    3 0x22279D81D51006139E0C7640...  4.7528  4.4% 39548 0.0001  0.00 SELECT domains domainmetadata
#    4 0x859BBB7E9D760686137A9444...  2.1344  2.0%   542 0.0039  0.00 DELETE records
# MISC 0xMISC                         3.6432  3.3% 99304 0.0000   0.0 <16 ITEMS>

# Query 1: 494.20 QPS, 0.89x concurrency, ID 0x42EF7D7D98FBCC9723BF896EBFC51D24 at byte 53152390
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:51:54
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         16   32617
# Exec time     53     59s   704us    12ms     2ms     3ms   571us     2ms
# Lock time     26    41ms       0   567us     1us     1us     3us     1us
# Rows sent     33   6.32k       0       1    0.20    0.99    0.40       0
# Rows examine  56  48.52M   1.25k   1.78k   1.52k   1.69k  146.72   1.46k
# Query size    29   4.41M     129     220  141.78  158.58   11.83  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='3e0oqxwogvk70.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='3e0oqxwogvk70.u.isucon.dev' and domain_id=4"] at /usr/bin/pt-query-digest line 7796.

# Query 2: 360.89 QPS, 0.60x concurrency, ID 0x3D83BC87F3B3A00D571FFC8104A6E50C at byte 20316600
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:51:54
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         12   23819
# Exec time     36     40s   657us     9ms     2ms     3ms   509us     2ms
# Lock time     18    30ms       0   383us     1us     1us     3us     1us
# Rows sent     61  11.77k       0       1    0.51    0.99    0.50    0.99
# Rows examine  41  35.50M   1.25k   1.78k   1.53k   1.69k  147.13   1.46k
# Query size    20   3.08M     126     219  135.46  151.03   11.17  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='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='u.isucon.dev'"] at /usr/bin/pt-query-digest line 7796.

# Query 3: 599.21 QPS, 0.07x concurrency, ID 0x22279D81D51006139E0C76405B54C261 at byte 22246951
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:51:54
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         20   39548
# Exec time      4      5s    71us     5ms   120us   152us   105us   103us
# Lock time     39    62ms       0     2ms     1us     1us    13us     1us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine   0       0       0       0       0       0       0       0
# Query size    28   4.30M     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: 8.21 QPS, 0.03x concurrency, ID 0x859BBB7E9D760686137A944406874C4D at byte 37857276
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:51:54
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0     542
# Exec time      1      2s     2ms     9ms     4ms     6ms   860us     4ms
# Lock time     13    21ms       0     4ms    38us     1us   302us     1us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine   0 820.67k   1.25k   1.78k   1.51k   1.69k  152.78   1.46k
# Query size     0  45.26k      78      93   85.52   88.31    3.34   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='jun180.u.isucon.dev' and type='A'\G
# Converted for EXPLAIN
# EXPLAIN 
select * from  records where domain_id=4 and name='jun180.u.isucon.dev' and type='A'\G

netdata

http://localhost:19992/#menu_services;after=1700898648510;before=1700898728518

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon2/pprof/11250750

saza-ku commented 1 year ago

isucon3

alp

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

slow query

Count: 21694  Time=0.00s (16s)  Lock=0.00s (0s)  Rows=1.0 (21694), isucon[isucon]@isucon1
  SELECT * FROM themes WHERE user_id = N

Count: 722  Time=0.01s (8s)  Lock=0.00s (0s)  Rows=2.4 (1710), isucon[isucon]@isucon1
  SELECT * FROM livestreams WHERE user_id = N

Count: 72903  Time=0.00s (7s)  Lock=0.00s (0s)  Rows=1.0 (72903), isucon[isucon]@isucon1
  SELECT * FROM tags WHERE id = N

Count: 473  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: 474  Time=0.01s (5s)  Lock=0.00s (0s)  Rows=9.9 (4692), isucon[isucon]@isucon1
  SELECT * FROM reservation_slots WHERE start_at >= N AND end_at <= N FOR UPDATE

Count: 14684  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=5.0 (72908), isucon[isucon]@isucon1
  SELECT * FROM livestream_tags WHERE livestream_id = N

Count: 21120  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=1.0 (21120), isucon[isucon]@isucon1
  SELECT * FROM users WHERE id = N

Count: 21378  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=0.0 (0), isucon[isucon]@isucon1
  COMMIT

Count: 765  Time=0.00s (2s)  Lock=0.00s (0s)  Rows=2454.4 (1877640), isucon[isucon]@isucon1
  SELECT * FROM livecomments

Count: 81  Time=0.03s (2s)  Lock=0.00s (0s)  Rows=7808.7 (632501), isucon[isucon]@isucon1
  SELECT * FROM livestreams

explain

Reading from STDIN ...

# 16.6s user time, 70ms system time, 38.12M rss, 52.43M vsz
# Current date: Sat Nov 25 07:52:27 2023
# Hostname: ip-192-168-0-13
# Files: STDIN
# Overall: 261.20k total, 68 unique, 2.97k QPS, 0.91x concurrency ________
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:52:16
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time            80s     1us   117ms   307us   725us     2ms    80us
# Lock time          258ms       0     5ms       0     1us    23us     1us
# Rows sent          3.61M       0   7.78k   14.49    4.96  202.48    0.99
# Rows examine      57.26M       0  12.81k  229.85   1.33k  818.09    0.99
# Query size        11.77M       6     993   47.26  107.34   55.36   34.95

# Profile
# Rank Query ID                     Response time Calls  R/Call V/M   Item
# ==== ============================ ============= ====== ====== ===== ====
#    1 0x38BC86A45F31C6B1EE32467... 16.0617 20.0%  21696 0.0007  0.00 SELECT themes
#    2 0x9EAD6C0CE525E3693EE27FF...  8.1699 10.2%    722 0.0113  0.00 SELECT livestreams
#    3 0xFBC5564AE716EAE82F20BFB...  7.2460  9.0%  72903 0.0001  0.00 SELECT tags
#    4 0xA3401CA3ABCC04C3AB221DB...  5.4083  6.7%    473 0.0114  0.00 UPDATE reservation_slots
# MISC 0xMISC                       43.4397 54.1% 165410 0.0003   0.0 <64 ITEMS>

# Query 1: 249.38 QPS, 0.18x concurrency, ID 0x38BC86A45F31C6B1EE324671506C898A at byte 28437493
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:52:15
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          8   21696
# Exec time     19     16s   240us    15ms   740us     2ms   630us   568us
# Lock time      8    23ms       0     2ms     1us     1us    18us     1us
# Rows sent      0  21.19k       1       1       1       1       0       1
# Rows examine  46  26.65M    1000   1.50k   1.26k   1.46k  152.56   1.26k
# Query size     7 868.59k      38      41   41.00   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 = 1144\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: 1541
#      filtered: 10.00
#         Extra: Using where

# Query 2: 10.94 QPS, 0.12x concurrency, ID 0x9EAD6C0CE525E3693EE27FFC9AAF05A3 at byte 17167846
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:51:54
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0     722
# Exec time     10      8s     4ms    40ms    11ms    20ms     5ms    10ms
# Lock time      0   632us       0    16us       0     1us       0     1us
# Rows sent      0   1.67k       0      21    2.37    7.70    2.75    0.99
# Rows examine   9   5.35M   7.32k   7.78k   7.58k   7.68k  176.49   7.31k
# Query size     0  32.42k      43      46   45.99   44.60    0.16   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 = 1017\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: 7881
#      filtered: 10.00
#         Extra: Using where

# Query 3: 1.10k QPS, 0.11x concurrency, ID 0xFBC5564AE716EAE82F20BFB45F6C37E7 at byte 7464699
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:51:54
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count         27   72903
# Exec time      9      7s    42us     7ms    99us   176us   184us    69us
# Lock time     32    84ms       0     3ms     1us     1us    18us     1us
# Rows sent      1  71.19k       1       1       1       1       0       1
# Rows examine   0  71.19k       1       1       1       1       0       1
# Query size    18   2.22M      31      33   31.96   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 = 96\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

# Query 4: 7.17 QPS, 0.08x concurrency, ID 0xA3401CA3ABCC04C3AB221DB8AD5CBF26 at byte 30450250
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: 2023-11-25T07:50:48 to 2023-11-25T07:51:54
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0     473
# Exec time      6      5s     5ms    45ms    11ms    22ms     5ms    10ms
# Lock time      0   709us       0   143us     1us     1us     8us     1us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine   6   3.95M   8.55k   8.55k   8.55k   8.55k       0   8.55k
# Query size     0  45.27k      98      98      98      98       0      98
# 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
UPDATE reservation_slots SET slot = slot - 1 WHERE start_at >= 1703358000 AND end_at <= 1703368800\G
# Converted for EXPLAIN
# EXPLAIN 
select  slot = slot - 1 from reservation_slots where  start_at >= 1703358000 AND end_at <= 1703368800\G

netdata

http://localhost:19993/#menu_services;after=1700898648532;before=1700898728542

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon3/pprof/11250750

saza-ku / isucon13

11250750 #85

isucon1

alp

slow query

explain

netdata

pprof

isucon2

alp

slow query

explain

netdata

pprof

isucon3

alp

slow query

explain

netdata

pprof