性能测试时

一、默认配置AB压力测试

官方nginx/1.10.3 测试结果：

Server Software:        nginx/1.10.3
Server Hostname:        127.0.0.1
Server Port:            80

Document Path:          /
Document Length:        612 bytes

Concurrency Level:      100
Time taken for tests:   4.226 seconds　　　　-- 表示所有这些请求被处理完成所花费的总时间
Complete requests:      100000
Failed requests:        0
Keep-Alive requests:    99004
Total transferred:      84995020 bytes
HTML transferred:       61200000 bytes
Requests per second:    23665.05 [#/sec] (mean)　　　　-- 吞吐率，大家最关心的指标之一，相当于 LR 中的每秒事务数，后面括号中的 mean 表示这是一个平均值
Time per request:       4.226 [ms] (mean)　　　　　　　　-- 用户平均请求等待时间，大家最关心的指标之二，相当于 LR 中的平均事务响应时间，后面括号中的 mean 表示这是一个平均值
Time per request:       0.042 [ms] (mean, across all concurrent requests)　　　　--服务器平均请求处理时间，大家最关心的指标之三
Transfer rate:          19642.69 [Kbytes/sec] received

openresty/1.11.2.1测试结果：

Server Software:        openresty/1.11.2.1
Server Hostname:        127.0.0.1
Server Port:            80

Document Path:          /
Document Length:        558 bytes

Concurrency Level:      100
Time taken for tests:   3.469 seconds
Complete requests:      100000
Failed requests:        0
Keep-Alive requests:    99049
Total transferred:      80195245 bytes
HTML transferred:       55800000 bytes
Requests per second:    28830.41 [#/sec] (mean)
Time per request:       3.469 [ms] (mean)
Time per request:       0.035 [ms] (mean, across all concurrent requests)
Transfer rate:          22578.73 [Kbytes/sec] received