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graphql-mesh 压测分析

作者：互联网

mesh 简介

如官方介绍，mesh是一个强大的数据源聚合工具，可以方便的聚合graphql 接口和非graphql接口

背景 

团队使用graphql-mesh聚合后端接口和数据，之前一直处于内测，流量不大，现在计划引流，流量会爆发式增长，所以需要测试服务的承压能力，作为关键节点的mesh自然需要压测，以下是针对mesh的压测分析

环境

压测

环境参数：cpus 1 ，mem 512M

mesh 聚合方式：federation

Service list

压测参数

Query

{
  "query": "query TestQuery {\n  users {\n    id\n    username\n    name\n    reviews {\n      id\n      body\n      product {\n        inStock\n        name\n        price\n        shippingEstimate\n        upc\n        weight\n      }\n    }\n  }\n  topProducts {\n    inStock\n    name\n    price\n    shippingEstimate\n    upc\n    weight\n    reviews {\n      id\n      body\n      author {\n        id\n        username\n        name\n      }\n    }\n  }\n}\n",
  "variables": {}
}

响应结果

请求总数 1000000 并发10

所有请求全部正常响应

50% 的请求 6 ms以内响应

99%的请求 71 ms以内响应

100%请求 275 ms以内响应

总耗时：1171.386 s

Server Software:
Server Hostname:        localhost
Server Port:            8888

Document Path:          /graphql
Document Length:        392 bytes

Concurrency Level:      10
Time taken for tests:   1171.386 seconds
Complete requests:      1000000
Failed requests:        0
Non-2xx responses:      1000000
Total transferred:      610000000 bytes
Total body sent:        631000000
HTML transferred:       392000000 bytes
Requests per second:    853.69 [#/sec] (mean)
Time per request:       11.714 [ms] (mean)
Time per request:       1.171 [ms] (mean, across all concurrent requests)
Transfer rate:          508.55 [Kbytes/sec] received
                        526.05 kb/s sent
                        1034.60 kb/s total

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.0      0       1
Processing:     1   12  15.5      6     275
Waiting:        1   10  14.3      5     275
Total:          1   12  15.5      6     275

Percentage of the requests served within a certain time (ms)
  50%      6
  66%      6
  75%      7
  80%      7
  90%     47
  95%     50
  98%     59
  99%     71
 100%    275 (longest request)

请求总数 1000000 并发100

所有请求全部正常响应

50% 的请求 100 ms以内响应

99%的请求 186 ms以内响应

100%请求 350 ms以内响应

总耗时：1093.896 s

Server Software:
Server Hostname:        localhost
Server Port:            8888

Document Path:          /graphql
Document Length:        392 bytes

Concurrency Level:      100
Time taken for tests:   1093.896 seconds
Complete requests:      1000000
Failed requests:        0
Non-2xx responses:      1000000
Total transferred:      610000000 bytes
Total body sent:        631000000
HTML transferred:       392000000 bytes
Requests per second:    914.16 [#/sec] (mean)
Time per request:       109.390 [ms] (mean)
Time per request:       1.094 [ms] (mean, across all concurrent requests)
Transfer rate:          544.57 [Kbytes/sec] received
                        563.32 kb/s sent
                        1107.89 kb/s total

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.3      0       7
Processing:     4  109  26.7     99     350
Waiting:        2   85  31.5     90     302
Total:          4  109  26.7    100     350

Percentage of the requests served within a certain time (ms)
  50%    100
  66%    103
  75%    107
  80%    112
  90%    157
  95%    177
  98%    183
  99%    186
 100%    350 (longest request)

请求总数 1000000 并发300

所有请求全部正常响应

50% 的请求 312 ms以内响应

99%的请求 413 ms以内响应

100%请求 589 ms以内响应

总耗时：1096.317s

Server Software:
Server Hostname:        localhost
Server Port:            8888

Document Path:          /graphql
Document Length:        392 bytes

Concurrency Level:      300
Time taken for tests:   1096.317 seconds
Complete requests:      1000000
Failed requests:        0
Non-2xx responses:      1000000
Total transferred:      610000000 bytes
Total body sent:        631000000
HTML transferred:       392000000 bytes
Requests per second:    912.14 [#/sec] (mean)
Time per request:       328.895 [ms] (mean)
Time per request:       1.096 [ms] (mean, across all concurrent requests)
Transfer rate:          543.37 [Kbytes/sec] received
                        562.07 kb/s sent
                        1105.44 kb/s total

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   1.0      1      15
Processing:    12  328  39.1    311     586
Waiting:        7  234  74.8    235     574
Total:         12  329  39.1    312     589

Percentage of the requests served within a certain time (ms)
  50%    312
  66%    336
  75%    370
  80%    375
  90%    384
  95%    390
  99%    413
 100%    589 (longest request)

请求总数 1000000 并发500

所有请求全部正常响应

50% 的请求 544 ms以内响应

99%的请求 656 ms以内响应

100%请求 1158 ms以内响应

总耗时：1095.781 s

Server Software:
Server Hostname:        localhost
Server Port:            8888

Document Path:          /graphql
Document Length:        392 bytes

Concurrency Level:      500
Time taken for tests:   1095.781 seconds
Complete requests:      1000000
Failed requests:        0
Non-2xx responses:      1000000
Total transferred:      610000000 bytes
Total body sent:        631000000
HTML transferred:       392000000 bytes
Requests per second:    912.59 [#/sec] (mean)
Time per request:       547.891 [ms] (mean)
Time per request:       1.096 [ms] (mean, across all concurrent requests)
Transfer rate:          543.63 [Kbytes/sec] received
                        562.35 kb/s sent
                        1105.98 kb/s total

Connection Times (ms)
              min  mean[+/-sd] median   max
  98%    399
Connect:        0    2   1.6      1      15
Processing:    13  546  46.1    542    1158
Waiting:        5  392 117.8    408     813
Total:         13  548  46.1    544    1158

Percentage of the requests served within a certain time (ms)
  50%    544
  66%    577
  75%    583
  80%    586
  90%    594
  95%    601
  98%    618
  99%    656
 100%   1158 (longest request)

请求总数 1000000 并发1000

所有请求全部正常响应

50% 的请求 1096 ms以内响应

99%的请求 1288 ms以内响应

100%请求 2933 ms以内响应

总耗时：1095.781 s

Server Software:
Server Hostname:        localhost
Server Port:            8888

Document Path:          /graphql
Document Length:        392 bytes

Concurrency Level:      1000
Time taken for tests:   1101.761 seconds
Complete requests:      1000000
Failed requests:        0
Non-2xx responses:      1000000
Total transferred:      610000000 bytes
Total body sent:        631000000
HTML transferred:       392000000 bytes
Requests per second:    907.64 [#/sec] (mean)
Time per request:       1101.761 [ms] (mean)
Time per request:       1.102 [ms] (mean, across all concurrent requests)
Transfer rate:          540.68 [Kbytes/sec] received
                        559.30 kb/s sent
                        1099.98 kb/s total

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    3   2.1      2      19
Processing:    24 1099 113.0   1094    2925
Waiting:        5  864 159.9    877    2099
Total:         24 1101 113.0   1096    2933

Percentage of the requests served within a certain time (ms)
  50%   1096
  66%   1110
  75%   1123
  80%   1137
  90%   1180
  95%   1198
  98%   1260
  99%   1288
 100%   2933 (longest request)

Mesh 监控分析

Cpu 耗时占比

并发数

gc

idle

program

Validate and execute the query

pubSubHandler

parserOnHeadersComplete

onconnection

processTicksAndRejections

10

12%

5.4%

3.8%

36.7%

7.7%

15.6%

3.5%

11.4%

100

13.3%

4.9%

3.3%

37.1%

7.8%

15.8%

2.2%

11.6%

300

13.3%

5.0%

3.3%

37.2%

7.6%

15.7%

2.1%

11.6%

500

13.3%

4.8%

3.4%

37%

7.6%

15.6%

2.3%

11.9%

1000

13.4%

4.8%

3.2%

37.1%

7.7%

15.2%

2.2%

12%

2000

client： Too many open files

附图

结论

并发数持续增长，单个请求响应时间明显增加，

在一定并发范围内，各阶段消耗的cpu时间，基本维持稳定，graphql parse 和 validate 最耗时，占比37%左右

并发数在1000以内，所有请求成功响应

随着并发数量增加，请求响应时间明显增加，响应超时和失败的风险增加

mesh 便捷强大，可以省去一些聚合工作，但是node出身的他，还是不适合cpu密集型工作（graphql解析，聚合，校验），在高并发量的业务中，mesh不是很适合

参考

graphql-mesh

标签：请求,压测,1000000,mesh,graphql,ms,requests,mean
来源： https://blog.csdn.net/u014636124/article/details/118603613