对于limit_req_zone，请求静态资源和动态资源压测差别很大啊

Question

nginx配置大概是limit_req_zone $binary_remote_addr zone=req_zone:1m rate=1r/s; server {     listen       80;     server_name  localhost;     access_log  /var/log/nginx/host.access.log  main;     root   /usr/share/nginx/html;     location / {         root   /usr/share/nginx/html;         index  index.html index.htm;         limit_req zone=req_zone;     }    }p.php是phpinfoab -n 20 -c 20 http://192.168.1.251/p.php 结果是Concurrency Level:      20Time taken for tests:   0.071 secondsComplete requests:      20Failed requests:        3   (Connect: 0, Receive: 0, Length: 3, Exceptions: 0)Write errors:           0Total transferred:      1645517 bytesHTML transferred:       1642257 bytesRequests per second:    282.81 [#/sec] (mean)Time per request:       70.719 [ms] (mean)Time per request:       3.536 [ms] (mean, across all concurrent requests)Transfer rate:          22723.03 [Kbytes/sec] received而压测静态文件结果是ab -n 20 -c 20 http://192.168.1.251/1.htmlConcurrency Level:      20Time taken for tests:   0.022 secondsComplete requests:      20Failed requests:        19   (Connect: 0, Receive: 0, Length: 19, Exceptions: 0)Write errors:           0Non-2xx responses:      19Total transferred:      8843 bytesHTML transferred:       4928 bytesRequests per second:    892.38 [#/sec] (mean)Time per request:       22.412 [ms] (mean)Time per request:       1.121 [ms] (mean, across all concurrent requests)Transfer rate:          385.32 [Kbytes/sec] received为什么差距那么大呢？