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Swoole同步模式与协程模式之间的比较 （详细）

时间：2024/11/12作者：未知来源：手揣网教程人气：

[摘要]本篇文章给大家带来的内容是关于Swoole同步模式与协程模式之间的对比 （详细） ，有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。在现代化 PHP 高级开发中，Swoole 为 PH...
本篇文章给大家带来的内容是关于Swoole同步模式与协程模式之间的对比 （详细） ，有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。

在现代化 PHP 高级开发中，Swoole 为 PHP 带来了更多可能，如：常驻内存、协程，关于传统的 Apache/FPM 模式与常驻内存模式(同步)的巨大差异，之前我做过测试，大家能直观的感受到性能的巨大提升，但是协程到来后，又带来了多少性能的提升呢？提升的又是哪方面的性能？下面逐步测试一下。

传统的 Apache/FPM 模式与常驻内存模式(同步)的测试文章：
MixPHP 并发性能全面对比测试

协程的优势

协程模式与常驻内存模式(同步)/传统模式相比：

常驻模式/传统模式都属于同步阻塞编程，由于同一个进程不能并行处理请求，所以为了提高并发，只能开启更多的进程，通常超过 100 甚至更多，每个进程都有基础的内存消耗，加起来就很多了，而且受限于 Linux 总进程数限制，并发总数无法突破，加上进程非常多之后，CPU 需要更多的线程切换，浪费了很多性能，当然相比 FPM 的传统模式每次都需从头开始，常驻模式还是要好非常多的，但是协程显然更加优秀。

协程模式的执行方式：

协程模式中一个进程可以同时执行 N 个请求，但同一时刻只执行其中的某一个请求，也就是说，当执行到 MySQL/Redis 这些客户端时，由于需要等待客户端响应，常驻模式/传统模式通常是在傻傻的等待响应，而协程这个时候会挂起当前协程，切换到其他协程中去处理其他请求，所以协程能同时处理 N 个请求，每增加一个请求只需增加一些内存消耗，相比增加一个进程的内存消耗，显然是少太多的，由于协程能并行处理，所以通常只需配置于 CPU 数量 1～2 倍左右的进程数即可，更少的进程带来更少的 CPU 线程切换，又减少很多性能损耗。

开始测试

MixPHP 是一个基于 Swoole 的FPM、常驻内存、协程三模 PHP 高性能框架，由于该框架同时具备常驻内存模式、协程模式，所以能很方便的测试结果。

测试环境：

docker 容器，限制只能使用 1 CPU。

其他参数如下：

Server      Name:      mix-httpd
Framework   Version:   1.1.0-RC
PHP         Version:   7.2.9
Swoole      Version:   4.1.0
Listen      Addr:      127.0.0.1
Listen      Port:      9501

代码：

模拟常用的 HTTP 开发需求，执行三个 SQL 请求。

// 默认动作
public function actionIndex()
{
    PDO::createCommand("select * from `test` where id = 1")->queryOne();
    PDO::createCommand("select * from `test` where id = 2")->queryOne();
    return PDO::createCommand("select * from `test` limit 5")->queryAll();
}
测试结果
常驻内存模式(同步)：
进程数并发数RPS
8100838.65
8300683.78
8500688.56
50100770.69
50300304.90
50300378.95
协程模式：
进程数并发数RPS
8100834.12
8300837.50
8500824.14
协程在本次测试中并没有像之前的传统 Apache/FPM 模式与常驻内存模式(同步)的测试一样展现出巨大的性能提升，说明：
  • 在少量能快速响应的 SQL  请求中，协程的提升并不明显，应该要在响应时间更大时，才能感受到协程优势。
  • 常驻内存模式的进程数配置过多，并发性能反而会降低，该问题同样适用于传统 Apache/FPM 模式。
常驻内存模式(同步)详细测试
首先 8 个 Worker 进程，并发 100 测试，RPS 为 838.65。
C:\Users\EDZ>ab -n 10000 -c 100 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      100
Time taken for tests:   11.924 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    838.65 [#/sec] (mean)
Time per request:       119.239 [ms] (mean)
Time per request:       1.192 [ms] (mean, across all concurrent requests)
Transfer rate:          217.85 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.2      0       4
Processing:    20  118  18.3    118     195
Waiting:       19  118  18.4    118     195
Total:         20  118  18.4    119     195

Percentage of the requests served within a certain time (ms)
  50%    119
  66%    126
  75%    130
  80%    133
  90%    141
  95%    147
  98%    155
  99%    161
 100%    195 (longest request)
然后使用 8 个 Worker 进程，并发 300 测试，RPS 为 683.78。
C:\Users\EDZ>ab -n 10000 -c 300 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      300
Time taken for tests:   14.624 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    683.78 [#/sec] (mean)
Time per request:       438.735 [ms] (mean)
Time per request:       1.462 [ms] (mean, across all concurrent requests)
Transfer rate:          177.62 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0  30.0      0    3000
Processing:    62  432 493.4    354    3457
Waiting:       54  431 488.1    354    3455
Total:         62  433 494.1    354    3457

Percentage of the requests served within a certain time (ms)
  50%    354
  66%    373
  75%    385
  80%    392
  90%    411
  95%    432
  98%   3170
  99%   3266
 100%   3457 (longest request)
然后使用 8 个 Worker 进程，并发 500 测试，RPS 为 688.56。
C:\Users\EDZ>ab -n 10000 -c 500 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      500
Time taken for tests:   14.523 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    688.56 [#/sec] (mean)
Time per request:       726.150 [ms] (mean)
Time per request:       1.452 [ms] (mean, across all concurrent requests)
Transfer rate:          178.87 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0  30.0      0    3000
Processing:   102  707 618.4    596    3632
Waiting:       89  703 605.6    595    3629
Total:        102  707 618.9    596    3633

Percentage of the requests served within a certain time (ms)
  50%    596
  66%    620
  75%    635
  80%    645
  90%    679
  95%   3125
  98%   3401
  99%   3495
 100%   3633 (longest request)
现在调整为 50 进程，100 并发测试，RPS 为 770.69。
进程的增加并没有带来并发量的提升。
C:\Users\EDZ>ab -n 10000 -c 100 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      100
Time taken for tests:   12.975 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    770.69 [#/sec] (mean)
Time per request:       129.754 [ms] (mean)
Time per request:       1.298 [ms] (mean, across all concurrent requests)
Transfer rate:          200.20 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1  42.4      0    3000
Processing:    10  128 499.8     56    7137
Waiting:       10  127 495.8     55    7137
Total:         11  129 503.3     56    7137

Percentage of the requests served within a certain time (ms)
  50%     56
  66%     72
  75%     86
  80%     97
  90%    133
  95%    179
  98%    312
  99%   3052
 100%   7137 (longest request)
50 进程，300 并发测试，RPS 为 304.90。
对比 8 个进程时的结果，并发量降低非常明显，看来进程数过多并不能提升性能，反而会降低性能。
C:\Users\EDZ>ab -n 10000 -c 300 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      300
Time taken for tests:   32.798 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    304.90 [#/sec] (mean)
Time per request:       983.942 [ms] (mean)
Time per request:       3.280 [ms] (mean, across all concurrent requests)
Transfer rate:          79.20 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    3  90.0      0    3001
Processing:    25  976 1339.8    189    3694
Waiting:       23  954 1316.5    188    3691
Total:         25  979 1341.0    189    3694

Percentage of the requests served within a certain time (ms)
  50%    189
  66%    289
  75%   3094
  80%   3113
  90%   3184
  95%   3249
  98%   3315
  99%   3375
 100%   3694 (longest request)
50 进程，500 并发测试，RPS 为 378.95。
C:\Users\EDZ>ab -n 10000 -c 500 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests
Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80
Document Path:          /
Document Length:        101 bytes
Concurrency Level:      500
Time taken for tests:   26.389 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    378.95 [#/sec] (mean)
Time per request:       1319.431 [ms] (mean)
Time per request:       2.639 [ms] (mean, across all concurrent requests)
Transfer rate:          98.44 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    2  79.4      0    3001
Processing:    64 1306 1434.7    341    3962
Waiting:       17 1224 1391.4    321    3959
Total:         65 1308 1435.2    342    3963

Percentage of the requests served within a certain time (ms)
  50%    342
  66%   3142
  75%   3168
  80%   3195
  90%   3292
  95%   3374
  98%   3467
  99%   3516
 100%   3963 (longest request)
协程模式详细测试
首先 8 个 Worker 进程，并发 100 测试，RPS 为 834.12。
C:\Users\EDZ>ab -n 10000 -c 100 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      100
Time taken for tests:   11.989 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    834.12 [#/sec] (mean)
Time per request:       119.886 [ms] (mean)
Time per request:       1.199 [ms] (mean, across all concurrent requests)
Transfer rate:          216.68 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.3      0       4
Processing:    84  119   9.8    122     165
Waiting:       84  119   9.8    122     164
Total:         84  119   9.8    123     165

Percentage of the requests served within a certain time (ms)
  50%    123
  66%    124
  75%    125
  80%    125
  90%    126
  95%    128
  98%    131
  99%    137
 100%    165 (longest request)
然后使用 8 个 Worker 进程，并发 300 测试，RPS 为 837.50。
C:\Users\EDZ>ab -n 10000 -c 300 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      300
Time taken for tests:   11.940 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    837.50 [#/sec] (mean)
Time per request:       358.207 [ms] (mean)
Time per request:       1.194 [ms] (mean, across all concurrent requests)
Transfer rate:          217.55 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1  42.4      0    3001
Processing:    86  354 1043.0    161    7172
Waiting:       86  344 1011.9    160    7172
Total:         86  355 1044.5    161    7172

Percentage of the requests served within a certain time (ms)
  50%    161
  66%    182
  75%    199
  80%    212
  90%    251
  95%    302
  98%   6103
  99%   6135
 100%   7172 (longest request)
然后使用 8 个 Worker 进程，并发 500 测试，RPS 为 824.14。
C:\Users\EDZ>ab -n 10000 -c 500 http://www.a.com/
This is ApacheBench, Version 2.3 <$Revision: 1757674 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.a.com (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        nginx/1.13.9
Server Hostname:        www.a.com
Server Port:            80

Document Path:          /
Document Length:        101 bytes

Concurrency Level:      500
Time taken for tests:   12.134 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      2660000 bytes
HTML transferred:       1010000 bytes
Requests per second:    824.14 [#/sec] (mean)
Time per request:       606.690 [ms] (mean)
Time per request:       1.213 [ms] (mean, across all concurrent requests)
Transfer rate:          214.08 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.3      0       4
Processing:    92  332 585.3    198    6931
Waiting:       91  331 585.5    196    6931
Total:         92  332 585.3    198    6931

Percentage of the requests served within a certain time (ms)
  50%    198
  66%    242
  75%    284
  80%    334
  90%    587
  95%    932
  98%   1216
  99%   2390
 100%   6931 (longest request)
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关键词：Swoole同步模式与协程模式之间的比较 （详细）



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