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ID生成

memory atomic

ab -n 100000 -c 100 -k 'http://127.0.0.1:8052/getid?type=1'

Benchmarking 127.0.0.1 (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests


Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=1
Document Length:        14 bytes

Concurrency Level:      100
Time taken for tests:   9.093 seconds
Complete requests:      100000
Failed requests:        0
Keep-Alive requests:    100000
Total transferred:      16100000 bytes
HTML transferred:       1400000 bytes
Requests per second:    10997.03 [#/sec] (mean)
Time per request:       9.093 [ms] (mean)
Time per request:       0.091 [ms] (mean, across all concurrent requests)
Transfer rate:          1729.02 [Kbytes/sec] received

Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.9      0      42
Processing:     0    9   9.1      8     152
Waiting:        0    9   9.1      8     152
Total:          0    9   9.2      8     152

Percentage of the requests served within a certain time (ms)
50%      8
66%      9
75%     10
80%     11
90%     16
95%     20
98%     28
99%     40
100%    152 (longest request)

memory mutex

ab -n 100000 -c 100 -k 'http://127.0.0.1:8052/getid?type=2'

Benchmarking 127.0.0.1 (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests


Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=2
Document Length:        14 bytes

Concurrency Level:      100
Time taken for tests:   9.623 seconds
Complete requests:      100000
Failed requests:        0
Keep-Alive requests:    100000
Total transferred:      16100000 bytes
HTML transferred:       1400000 bytes
Requests per second:    10391.31 [#/sec] (mean)
Time per request:       9.623 [ms] (mean)
Time per request:       0.096 [ms] (mean, across all concurrent requests)
Transfer rate:          1633.79 [Kbytes/sec] received

Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.2      0      10
Processing:     0   10   7.9      9     134
Waiting:        0   10   7.9      9     134
Total:          0   10   7.9      9     134

Percentage of the requests served within a certain time (ms)
50%      9
66%     10
75%     11
80%     14
90%     18
95%     23
98%     30
99%     36
100%    134 (longest request)

redis incr

ab -n 100000 -c 100 -k 'http://127.0.0.1:8052/getid?type=3'

Benchmarking 127.0.0.1 (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests


Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=3
Document Length:        8 bytes

Concurrency Level:      100
Time taken for tests:   12.896 seconds
Complete requests:      100000
Failed requests:        99991
(Connect: 0, Receive: 0, Length: 99991, Exceptions: 0)
Keep-Alive requests:    100000
Total transferred:      15888796 bytes
HTML transferred:       1188895 bytes
Requests per second:    7754.36 [#/sec] (mean)
Time per request:       12.896 [ms] (mean)
Time per request:       0.129 [ms] (mean, across all concurrent requests)
Transfer rate:          1203.20 [Kbytes/sec] received

Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      12
Processing:     0   13   8.3     11     146
Waiting:        0   13   8.3     11     146
Total:          0   13   8.4     11     146

Percentage of the requests served within a certain time (ms)
50%     11
66%     14
75%     16
80%     17
90%     22
95%     27
98%     34
99%     42
100%    146 (longest request)

mysql lock

ab -n 100000 -c 100 -k 'http://127.0.0.1:8052/getid?type=4'

mysql cas

ab -n 100000 -c 100 -k 'http://127.0.0.1:8052/getid?type=5'

Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests


Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=5
Document Length:        8 bytes

Concurrency Level:      100
Time taken for tests:   199.457 seconds
Complete requests:      100000
Failed requests:        99991
(Connect: 0, Receive: 0, Length: 99991, Exceptions: 0)
Keep-Alive requests:    100000
Total transferred:      15888796 bytes
HTML transferred:       1188895 bytes
Requests per second:    501.36 [#/sec] (mean)
Time per request:       199.457 [ms] (mean)
Time per request:       1.995 [ms] (mean, across all concurrent requests)
Transfer rate:          77.79 [Kbytes/sec] received

Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      13
Processing:    25  199  52.0    178     535
Waiting:       11  199  52.0    178     535
Total:         25  199  52.0    178     535

Percentage of the requests served within a certain time (ms)
50%    178
66%    195
75%    214
80%    228
90%    270
95%    311
98%    361
99%    397
100%    535 (longest request)   <!-- step=100 -->
Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=6
Document Length:        8 bytes

Concurrency Level:      100
Time taken for tests:   9.742 seconds
Complete requests:      100000
Failed requests:        99991
(Connect: 0, Receive: 0, Length: 99991, Exceptions: 0)
Keep-Alive requests:    100000
Total transferred:      15888796 bytes
HTML transferred:       1188895 bytes
Requests per second:    10264.46 [#/sec] (mean)
Time per request:       9.742 [ms] (mean)
Time per request:       0.097 [ms] (mean, across all concurrent requests)
Transfer rate:          1592.67 [Kbytes/sec] received

Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      12
Processing:     0   10   6.2      9     159
Waiting:        0   10   6.2      9     159
Total:          0   10   6.2      9     159

Percentage of the requests served within a certain time (ms)
50%      9
66%     10
75%     11
80%     11
90%     16
95%     19
98%     26
99%     30
100%    159 (longest request)

mysql pessimism step

ab -n 100000 -c 100 -k 'http://127.0.0.1:8052/getid?type=6'

Benchmarking 127.0.0.1 (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests

<!-- step=10 -->
Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=6
Document Length:        8 bytes

Concurrency Level:      100
Time taken for tests:   29.523 seconds
Complete requests:      100000
Failed requests:        99991
(Connect: 0, Receive: 0, Length: 99991, Exceptions: 0)
Keep-Alive requests:    100000
Total transferred:      15888796 bytes
HTML transferred:       1188895 bytes
Requests per second:    3387.15 [#/sec] (mean)
Time per request:       29.523 [ms] (mean)
Time per request:       0.295 [ms] (mean, across all concurrent requests)
Transfer rate:          525.56 [Kbytes/sec] received

Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.2      0       9
Processing:     0   29  12.5     26     215
Waiting:        0   29  12.5     26     215
Total:          0   29  12.5     26     215

Percentage of the requests served within a certain time (ms)
50%     26
66%     28
75%     29
80%     31
90%     36
95%     52
98%     69
99%     83
100%    215 (longest request)

<!-- step=100 -->
Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=6
Document Length:        8 bytes

Concurrency Level:      100
Time taken for tests:   9.742 seconds
Complete requests:      100000
Failed requests:        99991
(Connect: 0, Receive: 0, Length: 99991, Exceptions: 0)
Keep-Alive requests:    100000
Total transferred:      15888796 bytes
HTML transferred:       1188895 bytes
Requests per second:    10264.46 [#/sec] (mean)
Time per request:       9.742 [ms] (mean)
Time per request:       0.097 [ms] (mean, across all concurrent requests)
Transfer rate:          1592.67 [Kbytes/sec] received

Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      12
Processing:     0   10   6.2      9     159
Waiting:        0   10   6.2      9     159
Total:          0   10   6.2      9     159

Percentage of the requests served within a certain time (ms)
50%      9
66%     10
75%     11
80%     11
90%     16
95%     19
98%     26
99%     30
100%    159 (longest request)

mysql redis lock

ab -n 100000 -c 100 -k 'http://127.0.0.1:8052/getid?type=7'

<!-- 二进制无上限 超时 -->

Benchmarking 127.0.0.1 (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests


Server Software:
Server Hostname:        127.0.0.1
Server Port:            8052

Document Path:          /getid?type=7
Document Length:        8 bytes

Concurrency Level:      100
Time taken for tests:   311.087 seconds
Complete requests:      100000
Failed requests:        99991
(Connect: 0, Receive: 0, Length: 99991, Exceptions: 0)
Keep-Alive requests:    100000
Total transferred:      15888796 bytes
HTML transferred:       1188895 bytes
Requests per second:    321.45 [#/sec] (mean)
Time per request:       311.087 [ms] (mean)
Time per request:       3.111 [ms] (mean, across all concurrent requests)
Transfer rate:          49.88 [Kbytes/sec] received

<!-- <=1024 -->
Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      11
Processing:     2  310 1769.4      3   40712
Waiting:        2  310 1769.4      3   40712
Total:          2  310 1769.4      3   40712

Percentage of the requests served within a certain time (ms)
50%      3
66%      3
75%      4
80%      4
90%     11
95%    684
98%   5582
99%   9285
100%  40712 (longest request)

<!-- <=128 -->
Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.2      0      11
Processing:     2  342 751.7      5   10665
Waiting:        2  342 751.7      5   10665
Total:          2  342 751.7      5   10665

Percentage of the requests served within a certain time (ms)
50%      5
66%     48
75%    310
80%    521
90%   1197
95%   1901
98%   2836
99%   3569
100%  10665 (longest request)

<!-- <=64 -->
Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      15
Processing:     2  357 591.0     74    7391
Waiting:        2  357 591.0     74    7391
Total:          2  357 591.0     74    7391

Percentage of the requests served within a certain time (ms)
50%     74
66%    302
75%    490
80%    626
90%   1075
95%   1543
98%   2198
99%   2736
100%   7391 (longest request)

<!-- <=32 -->
Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.2      0      11
Processing:     2  312 402.7    173    5946
Waiting:        2  312 402.7    173    5946
Total:          2  312 402.7    173    5946

Percentage of the requests served within a certain time (ms)
50%    173
66%    320
75%    440
80%    531
90%    811
95%   1102
98%   1515
99%   1856
100%   5946 (longest request)

<!-- <=16 -->
Connection Times (ms)
            min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      12
Processing:     2  367 423.0    233    6880
Waiting:        2  367 423.0    233    6880
Total:          2  367 423.0    233    6880

Percentage of the requests served within a certain time (ms)
50%    233
66%    379
75%    500
80%    589
90%    875
95%   1179
98%   1617
99%   1997
100%   6880 (longest request)

issue

  1. ab -k Use HTTP KeepAlive feature
  2. redis pool MaxIdle > 100
  3. mysql 8.0 mysql_native_password allowNativePasswords=true

ref

[分布式 ID 生成策略](https://mp.weixin.qq.com/s/h8dphDS4D36nWyhPCLC7ag)
[分布式ID生成器](https://mp.weixin.qq.com/s?__biz=MjM5ODYxMDA5OQ==&mid=2651960245&idx=1&sn=5cef3d8ca6a3e6e94f61e0edaf985d11&chksm=bd2d06698a5a8f7fc89056af619b9b7e79b158bceb91bdeb776475bc686721e36fb925904a67&scene=21#wechat_redirect)

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