# 网关性能测试

> 注意：记得关闭限流功能

**测试环境**

- 测试工具：[wrk](https://github.com/wg/wrk)，[安装教程](https://www.cnblogs.com/quanxiaoha/p/10661650.html)
- 服务器：CentOS7（虚拟机，宿主机：macbookpro），内存：2G，CPU:1，核数：2核
- 运行环境：Java8、Mysql-5.7、Nacos-1.1.3
- 网关启动参数：

```
-verbose:gc -XX:+PrintGCDetails -XX:+PrintHeapAtGC -Xloggc:gc-zuul.log \
      -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=128m -Xms1024m -Xmx1024m -Xmn512m -Xss256k -XX:SurvivorRatio=8 \
      -XX:+UseConcMarkSweepGC
```

- zuul配置（仅针对zuul，Spring Cloud Gateway没有做优化配置）：

```properties
# 不校验时间，这样一个链接可以一直进行测试
sop.api-config.timeout-seconds=0
sop.restful.enable=true

logging.level.com.gitee=info

# zuul调优
zuul.host.max-per-route-connections=5000
zuul.host.max-total-connections=5000
zuul.semaphore.max-semaphores=5000

ribbon.ReadTimeout=5000
hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds=13000

logging.file=sop-gateway.log
```

CentOS允许最大连接数
```
$ ulimit -n
65535
```

## 调用开放接口

- wrk命令：

```
wrk -t8 -c200 -d30s "http://10.1.31.227:8081/?charset=utf-8&biz_content=%7B%22name%22%3A%22%E8%91%AB%E8%8A%A6%E5%A8%83%22%2C%22id%22%3A%221%22%7D&method=alipay.story.get&format=json&sign=RjK%2FThnzAJQOw%2BfoVLS18PgWZAR%2B25SI2XdONFhS%2BmS8vsv2jNT3rygFoh%2ByX1AJbMgIEfcBzkQyqrs29jjd5dcwHVkcf7vxXshyfcEgl0fbMF6Ihycnz7rqSqkW3lzAWx4NuWUfkPnTX8Ffuf%2BhYRaI0NCpNv%2FV300HvsvmUjS6ZzS4YHaT1peSq0agfUhwRPd97aYMnUwRZDzxNfc5wuXA7OQ1o%2FPYIuIb%2FajVfwNP5ysitc%2FKtYEqt9rNAuzkcFmsw71d2RRnrPLsDN%2BuBXnIEh482f%2FbMj2Rj4%2FMq%2B0PEtlTRbg3rYnxyfowymfX%2BNmI4gNRUt70D4a%2FL3Qiug%3D%3D&app_id=2019032617262200001&sign_type=RSA2&version=1.0&timestamp=2020-01-19+13%3A34%3A12"
```

- Spring Cloud Gateway测试结果

```
  8 threads and 200 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   139.74ms   69.39ms 617.14ms   69.82%
    Req/Sec   182.12     55.74   343.00     66.24%
  43391 requests in 30.09s, 11.96MB read
Requests/sec:   1441.96
Transfer/sec:    406.96KB
```

结果说明，下同：

```
  8 threads and 200 connections （共8个测试线程，200个连接）
              （平均值） （标准差）  （最大值）（正负一个标准差所占比例）
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    （延迟）
    Latency   139.74ms   69.39ms 617.14ms   69.82%
     (每秒请求数)
    Req/Sec   182.12     55.74   343.00     66.24%
  43391 requests in 30.09s, 11.96MB read (30.09秒内处理了43391个请求，耗费流量11.96MB)
Requests/sec:   1441.96  (QPS 1441.96,即平均每秒处理请求数为1441.96)
Transfer/sec:    406.96KB (平均每秒流量406.96KB)
```

- Spring Cloud Zuul测试结果

```
  8 threads and 200 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   230.14ms  331.27ms   2.00s    86.98%
    Req/Sec   141.69     51.04   323.00     66.99%
  33945 requests in 30.09s, 9.88MB read
  Socket errors: connect 0, read 0, write 0, timeout 385
Requests/sec:   1128.05
Transfer/sec:    336.15KB
```

## 调用restful请求

- wrk命令：

```
wrk -t8 -c200 -d30s "http://10.1.31.227:8081/rest/story-service/food/getFoodById?id=2"
```

线程数为 8，模拟 200 个并发请求，持续 30 秒

- Spring Cloud Gateway测试结果

```
  8 threads and 200 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   120.14ms   58.30ms 513.85ms   67.47%
    Req/Sec   210.47     54.26   770.00     69.37%
  50301 requests in 30.10s, 7.53MB read
Requests/sec:   1670.97
Transfer/sec:    256.21KB
```


- Spring Cloud Zuul测试结果

```
  8 threads and 200 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   185.86ms  285.65ms   1.99s    88.55%
    Req/Sec   167.75     55.60   460.00     68.05%
  40070 requests in 30.09s, 6.65MB read
  Socket errors: connect 0, read 0, write 0, timeout 466
Requests/sec:   1331.81
Transfer/sec:    226.50KB
```


综上所述，Spring Cloud Gateway在没有优化的情况下，压测表现比zuul好，但zuul的数据表现也不差，但是出现超时现象，总的来说还是Spring Cloud Gateway具有优势。

附启动脚本：

`restart.sh`

```bash
echo "Stopping sop-gateway-4.0.3-SNAPSHOT.jar"
pid=`ps -ef | grep sop-gateway-4.0.3-SNAPSHOT.jar | grep -v grep | awk '{print $2}'`
if [ -n "$pid" ]
then
   echo "kill -9 的id:" $pid
   kill -9 $pid
fi
nohup java -jar -verbose:gc -XX:+PrintGCDetails -XX:+PrintHeapAtGC -Xloggc:gc.log \
 -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=128m -Xms1024m -Xmx1024m -Xmn256m -Xss256k -XX:SurvivorRatio=8\
 -XX:+UseConcMarkSweepGC  sop-gateway-4.0.3-SNAPSHOT.jar\
 --spring.profiles.active=dev --server.port=8081 &

tail -f nohup.out
```