11250700 - Githubissues

saza-ku commented 8 months ago

isucon1

alp

+-------+--------+------------------------------------------+-------+-------+-------+-------+-------+
| COUNT | METHOD |                   URI                    |  MIN  |  MAX  |  SUM  |  AVG  |  P99  |
+-------+--------+------------------------------------------+-------+-------+-------+-------+-------+
| 2     | GET    | /api/user/.+/statistics                  | 0.028 | 0.032 | 0.060 | 0.030 | 0.032 |
| 2     | GET    | /api/livestream/.+/statistics            | 0.028 | 0.028 | 0.056 | 0.028 | 0.028 |
| 1     | POST   | /api/livestream/reservation              | 0.024 | 0.024 | 0.024 | 0.024 | 0.024 |
| 1     | POST   | /api/register                            | 0.020 | 0.020 | 0.020 | 0.020 | 0.020 |
| 3     | POST   | /api/livestream/.+/reaction              | 0.004 | 0.004 | 0.012 | 0.004 | 0.004 |
| 2     | POST   | /api/livestream/.+/livecomment/.+/report | 0.004 | 0.008 | 0.012 | 0.006 | 0.008 |
| 2     | POST   | /api/livestream/.+/livecomment           | 0.004 | 0.004 | 0.008 | 0.004 | 0.004 |
| 2     | POST   | /api/login                               | 0.000 | 0.004 | 0.004 | 0.002 | 0.004 |
| 1     | POST   | /api/livestream/.+/enter                 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| 1     | GET    | /api/user/.+                             | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| 1     | GET    | /api/tag                                 | 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=1700895622054;before=1700895698142

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon1/pprof/11250700

saza-ku commented 8 months ago

isucon2

alp

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

slow query

explain

Reading from STDIN ...

# No events processed.

netdata

http://localhost:19992/#menu_services;after=1700895622053;before=1700895702060

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon2/pprof/11250700

saza-ku commented 8 months ago

isucon3

alp

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

slow query

Count: 2  Time=0.01s (0s)  Lock=0.00s (0s)  Rows=7496.0 (14992), isucon[isucon]@isucon1
  SELECT * FROM livestreams

Count: 1  Time=0.01s (0s)  Lock=0.00s (0s)  Rows=7.0 (7), isucon[isucon]@isucon1
  SELECT * FROM reservation_slots WHERE start_at >= N AND end_at <= N FOR UPDATE

Count: 2  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=632.5 (1265), isucon[isucon]@isucon1
  SELECT u.id AS id, COUNT(*) AS count FROM users u
  INNER JOIN livestreams l ON l.user_id = u.id
  INNER JOIN reactions r ON r.livestream_id = l.id
  GROUP BY u.id

Count: 2  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=9.0 (18), isucon[isucon]@isucon1
  SELECT * FROM livestreams WHERE user_id = N

Count: 2  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=642.0 (1284), isucon[isucon]@isucon1
  SELECT u.id AS id, IFNULL(SUM(l2.tip), N) AS count FROM users u
  INNER JOIN livestreams l ON l.user_id = u.id  
  INNER JOIN livecomments l2 ON l2.livestream_id = l.id
  GROUP BY u.id

Count: 18  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=0.2 (4), isucon[isucon]@isucon1
  SELECT * FROM livecomments WHERE livestream_id = N

Count: 1  Time=0.01s (0s)  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: 2  Time=0.00s (0s)  Lock=0.00s (0s)  Rows=933.5 (1867), isucon[isucon]@isucon1
  SELECT l.id AS id, IFNULL(SUM(l2.tip), N) AS count FROM livestreams l INNER JOIN livecomments l2 ON l.id = l2.livestream_id GROUP BY l.id

explain

Reading from STDIN ...

# 130ms user time, 30ms system time, 36.62M rss, 50.81M vsz
# Current date: Sat Nov 25 07:01:42 2023
# Hostname: ip-192-168-0-13
# Files: STDIN
# Overall: 188 total, 36 unique, 26.86 QPS, 0.01x concurrency ____________
# Time range: 2023-11-25T07:00:22 to 2023-11-25T07:00:29
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time           99ms    14us    10ms   526us     2ms     1ms    66us
# Lock time          114us       0     2us       0     1us       0     1us
# Rows sent         22.95k       0   7.32k  125.02  621.67  785.41    0.99
# Rows examine     114.03k       0   8.55k  621.09   1.96k   1.44k    0.99
# Query size        10.97k       6     416   59.76  158.58   52.64   44.60

# Profile
# Rank Query ID                        Response time Calls R/Call V/M   It
# ==== =============================== ============= ===== ====== ===== ==
#    1 0x050F7D44808F43E5D33D0B90BC...  0.0164 16.5%     2 0.0082  0.00 SELECT livestreams
#    2 0x7F9C0C0BA9473953B723EE16C0...  0.0103 10.4%     1 0.0103  0.00 SELECT reservation_slots
#    3 0xD00CB321F396631866985B8902...  0.0094  9.5%     2 0.0047  0.00 SELECT users livestreams reactions
#    4 0x9EAD6C0CE525E3693EE27FFC9A...  0.0089  9.0%     2 0.0045  0.00 SELECT livestreams
# MISC 0xMISC                           0.0539 54.5%   181 0.0003   0.0 <32 ITEMS>

# Query 1: 0 QPS, 0x concurrency, ID 0x050F7D44808F43E5D33D0B90BCF57CC9 at byte 45267
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: all events occurred at 2023-11-25T07:00:22
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          1       2
# Exec time     16    16ms     8ms     8ms     8ms     8ms   190us     8ms
# Lock time      1     2us     1us     1us     1us     1us       0     1us
# Rows sent     63  14.64k   7.32k   7.32k   7.32k   7.32k       0   7.32k
# Rows examine  12  14.64k   7.32k   7.32k   7.32k   7.32k       0   7.32k
# Query size     0      50      25      25      25      25       0      25
# 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 /*!50100 PARTITIONS*/
SELECT * FROM livestreams\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: 7187
#      filtered: 100.00
#         Extra: NULL

# Query 2: 0 QPS, 0x concurrency, ID 0x7F9C0C0BA9473953B723EE16C08655F1 at byte 0
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: all events occurred at 2023-11-25T07:00:22
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          0       1
# Exec time     10    10ms    10ms    10ms    10ms    10ms       0    10ms
# Lock time      0     1us     1us     1us     1us     1us       0     1us
# Rows sent      0       7       7       7       7       7       0       7
# Rows examine   7   8.55k   8.55k   8.55k   8.55k   8.55k       0   8.55k
# Query size     0      96      96      96      96      96       0      96
# 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 * FROM reservation_slots WHERE start_at >= 1700874000 AND end_at <= 1700899200 FOR UPDATE\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: 11.11
#         Extra: Using where

# Query 3: 0 QPS, 0x concurrency, ID 0xD00CB321F396631866985B89023C5836 at byte 3089
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: all events occurred at 2023-11-25T07:00:22
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          1       2
# Exec time      9     9ms     4ms     6ms     5ms     6ms     1ms     5ms
# Lock time      1     2us     1us     1us     1us     1us       0     1us
# Rows sent      5   1.24k     632     633  632.50     633    0.71  632.50
# Rows examine   5   5.87k   2.93k   2.94k   2.94k   2.94k    6.36   2.94k
# Query size     2     320     160     160     160     160       0     160
# String:
# Hosts        isucon1
# Users        isucon
# Query_time distribution
#   1us
#  10us
# 100us
#   1ms  ################################################################
#  10ms
# 100ms
#    1s
#  10s+
# Tables
#    SHOW TABLE STATUS LIKE 'users'\G
#    SHOW CREATE TABLE `users`\G
#    SHOW TABLE STATUS LIKE 'livestreams'\G
#    SHOW CREATE TABLE `livestreams`\G
#    SHOW TABLE STATUS LIKE 'reactions'\G
#    SHOW CREATE TABLE `reactions`\G
# EXPLAIN 
SELECT u.id AS id, COUNT(*) AS count FROM users u
    INNER JOIN livestreams l ON l.user_id = u.id
    INNER JOIN reactions r ON r.livestream_id = l.id
    GROUP BY u.id\G
# *************************** 1. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: r
#    partitions: NULL
#          type: ALL
# possible_keys: NULL
#           key: NULL
#       key_len: NULL
#           ref: NULL
#          rows: 1004
#      filtered: 100.00
#         Extra: Using temporary
# *************************** 2. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: l
#    partitions: NULL
#          type: eq_ref
# possible_keys: PRIMARY
#           key: PRIMARY
#       key_len: 8
#           ref: isupipe.r.livestream_id
#          rows: 1
#      filtered: 100.00
#         Extra: NULL
# *************************** 3. row ***************************
#            id: 1
#   select_type: SIMPLE
#         table: u
#    partitions: NULL
#          type: eq_ref
# possible_keys: PRIMARY,uniq_user_name
#           key: PRIMARY
#       key_len: 8
#           ref: isupipe.l.user_id
#          rows: 1
#      filtered: 100.00
#         Extra: Using index

# Query 4: 0 QPS, 0x concurrency, ID 0x9EAD6C0CE525E3693EE27FFC9AAF05A3 at byte 39083
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: all events occurred at 2023-11-25T07:00:22
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count          1       2
# Exec time      9     9ms     4ms     4ms     4ms     4ms    18us     4ms
# Lock time      1     2us     1us     1us     1us     1us       0     1us
# Rows sent      0      18       9       9       9       9       0       9
# Rows examine  12  14.64k   7.32k   7.32k   7.32k   7.32k       0   7.32k
# Query size     0      88      44      44      44      44       0      44
# 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 = 22\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: 7187
#      filtered: 10.00
#         Extra: Using where

netdata

http://localhost:19993/#menu_services;after=1700895622057;before=1700895702065

pprof

go tool pprof -http=0.0.0.0:1080 http://isucon3/pprof/11250700

saza-ku / isucon13

11250700 #70

isucon1

alp

slow query

explain

netdata

pprof

isucon2

alp

slow query

explain

netdata

pprof

isucon3

alp

slow query

explain

netdata

pprof