ambassador envoy 簡單性能測試

wrk

一個簡易，而且高性能的測試工具。以前使用的是ab，但發現envoy默認不支持http 1.0，而ab目前只支持http 1.0，因此完美的錯開了。envoy是能夠支持http 1.0的，可是我配置了下，好像沒有成功，就沒有深刻了，果斷換了wrk，目前使用起來感受這個工具很好用。

wkr通常線程數不宜過多， 核數的2到4倍足夠了， 多了反而由於線程切換過多形成效率下降， 由於 wrk 不是使用每一個鏈接一個線程的模型, 而是經過異步網絡 io 提高併發量. 因此網絡通訊不會阻塞線程執行，這也是 wrk 能夠用不多的線程模擬大量網路鏈接的緣由。 而如今不少性能工具並無採用這種方式, 而是採用提升線程數來實現高併發， 因此併發量一旦設的很高, 測試機自身壓力就很大， 測試效果反而降低。

安裝參考

refer:
https://www.cnblogs.com/xinzh...

命令行：

wrk -t100 -c10000 -d60s --timeout 60s http://ambassador.default.svc...:80/http-echo/

[root@master01 ambassador]# wrk
Usage: wrk <options> <url>                            
  Options:                                            
    -c, --connections <N>  Connections to keep open   
    -d, --duration    <T>  Duration of test           
    -t, --threads     <N>  Number of threads to use   
                                                      
    -s, --script      <S>  Load Lua script file       
    -H, --header      <H>  Add header to request      
        --latency          Print latency statistics   
        --timeout     <T>  Socket/request timeout     
    -v, --version          Print version details      
                                                      
  Numeric arguments may include a SI unit (1k, 1M, 1G)
  Time arguments may include a time unit (2s, 2m, 2h)

http sever

後臺服務爲go寫的http server，參考： https://github.com/hashicorp/...

deployment.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: http-echo
  annotations:
    getambassador.io/config: |
      ---
      apiVersion: ambassador/v0
      kind:  Mapping
      name:  httpecho_mapping
      prefix: /http-echo/
      service: http-echo
spec:
  selector:
    app: http-echo
  ports:
  - port: 80
    name: http-echo
    targetPort: 5678
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: http-echo
spec:
  replicas: 6
  strategy:
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: http-echo
    spec:
      containers:
      - name: http-echo
        image: hashicorp/http-echo
        args: ["-text=\"hello world\""]
        ports:
        - name: httpa
          containerPort: 5678
        resources:
          limits:
            cpu: "1"
            memory: 512Mi

ambassador

install deploy

測試數據

環境

component	version
docker	1.13.1
k8s	1.15.2
ambassador	0.83.0
envoy	1.12.0

資源

component	replica	resource
http-echo	3副本	1C1G
ambassador	10副本	2C0.5G

測試數據

service

wrk -t100 -c10000 -d60s --timeout 60s http://http-echo.default.svc....:80

ambassador

wrk -t100 -c1000 -d60s --timeout 60s http://ambassador.default.svc...:80/http-echo/

couclusion

method	concurrency	time	rqs	transfer/sec	latency avg	latency max	latency std
service	1000	1st	53709.17	9.01MB	31.36ms	689.04ms	80.48%
service	1000	2nd	53452.36	8.97MB	31.55ms	497.89ms	80.89%
service	10000	1st	59413.33	9.97MB	225.50ms	6.90s	91.98%
service	10000	2nd	59920.76	10.06MB	223.60ms	8.71s	92.36%
ambassador	1000	1st	30484.25	6.55MB	38.44ms	367.21ms	68.18%
ambassador	1000	2nd	30688.21	6.59MB	38.30ms	304.27ms	67.30%
ambassador	10000	1st	30512.20	6.59MB	335.20ms	4.24s	70.35%
ambassador	10000	2nd	30977.12	6.69MB	336.08ms	3.69s	71.70%