在自己的本子上随便测了下几款HttpServer，环境信息就不贴出来了，主要是比对下差距。
测试内容是输出 text/plain 的 hello, world。
先说结论：Netty > JDK HttpServer > Jersey-Netty > Jersey-HttpServer > SpringBoot。
但需要注意下，第一名的Netty吞吐是第二名的HttpServer的2.7倍，而且errors表现也很优秀。
Jersey 的 overhead 也摆在那儿，吞吐瞬间掉到 13156.38 req/sec，可见同步模型的确不擅长撑并发。
排名最后的是 SpringBoot，此前知道它性能差，没想到差成这样。
## Netty
[mougagit@Mous-Air] Desktop$ wrk -t8 -c1000 -d30s http://127.0.0.1:8080/rest/hello
Running 30s test @ http://127.0.0.1:8080/rest/hello
8 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 23.03ms 28.61ms 292.67ms 86.37%
Req/Sec 7.32k 2.27k 21.72k 76.67%
1743807 requests in 30.10s, 169.63MB read
Socket errors: connect 0, read 871, write 0, timeout 0
Requests/sec: 57938.49
Transfer/sec: 5.64MB
## JDK HttpServer
[mougagit@Mous-Air] Desktop$ wrk -t8 -c1000 -d30s http://127.0.0.1:8080/hello
Running 30s test @ http://127.0.0.1:8080/hello
8 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 17.15ms 25.00ms 570.39ms 98.39%
Req/Sec 2.69k 1.05k 9.14k 72.41%
631779 requests in 30.10s, 53.02MB read
Socket errors: connect 0, read 5491, write 41, timeout 0
Requests/sec: 20990.68
Transfer/sec: 1.76MB
## Jersey-Netty
[mougagit@Mous-Air] Desktop$ wrk -t8 -c1000 -d30s http://127.0.0.1:8080/hello
Running 30s test @ http://127.0.0.1:8080/hello
8 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 97.69ms 103.37ms 867.56ms 82.64%
Req/Sec 1.69k 0.93k 10.89k 84.29%
396003 requests in 30.10s, 37.77MB read
Socket errors: connect 0, read 482, write 83, timeout 0
Requests/sec: 13156.38
Transfer/sec: 1.25MB
## Jersey-HttpServer
[mougagit@Mous-Air] Desktop$ wrk -t8 -c1000 -d30s http://127.0.0.1:8080/hello
Running 30s test @ http://127.0.0.1:8080/hello
8 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 19.38ms 40.94ms 1.52s 95.95%
Req/Sec 1.62k 1.35k 11.31k 79.09%
353962 requests in 30.10s, 38.14MB read
Socket errors: connect 0, read 17293, write 229, timeout 0
Requests/sec: 11759.31
Transfer/sec: 1.27MB
## SpringBoot-tomcat
[mougagit@Mous-Air] Desktop$ wrk -t8 -c1000 -d30s http://127.0.0.1:8080/hello
Running 30s test @ http://127.0.0.1:8080/hello
8 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 185.73ms 176.82ms 1.76s 66.01%
Req/Sec 773.16 496.27 3.62k 76.40%
188085 requests in 30.08s, 22.62MB read
Socket errors: connect 0, read 498, write 3, timeout 0
Requests/sec: 6252.72
Transfer/sec: 770.17KB