One of my blogdown sites shows high response times on local PC (Windows 10) while serving from RStudio. To solve this problem I made Nginx config that allows you to view static content while editing blogdown project. Main change to simplest config is to disable all caching in Nginx and browser, otherwise you will not see latest changes after rendering.
Apache benchmark show response time drop from 2 seconds to 2 milliseconds.
Install Nginx and put two files into project folder:
- mime.types also available in nginx/conf folder
- nginx.config
# nginx.config
# Windows
#
# Start:
# mkdir ./tmp/logs
# mkdir ./tmp/temp
# nginx -p ./tmp -c ./nginx.config
#
# List nginx processes
# tasklist /fi "imagename eq nginx.exe"
#
# Kill all nginx
# taskkill /f /IM nginx.exe
events {
worker_connections 1024;
}
http {
include mime.types;
server {
listen 8070;
server_name localhost;
location / {
root ./public;
index index.html;
# kill browser cache
add_header Last-Modified $date_gmt;
add_header Cache-Control 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
if_modified_since off;
expires off;
etag off;
# kill nginx cache
# don't cache it
proxy_no_cache 1;
# even if cached, don't try to use it
proxy_cache_bypass 1;
}
}
}> ab -n 20 -c 1 http://127.0.0.1:4321/
This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 127.0.0.1 (be patient).....done
Server Software:
Server Hostname: 127.0.0.1
Server Port: 4321
Document Path: /
Document Length: 3694 bytes
Concurrency Level: 1
Time taken for tests: 21.597 seconds
Complete requests: 20
Failed requests: 0
Total transferred: 76320 bytes
HTML transferred: 73880 bytes
Requests per second: 0.93 [#/sec] (mean)
Time per request: 1079.836 [ms] (mean)
Time per request: 1079.836 [ms] (mean, across all concurrent requests)
Transfer rate: 3.45 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 0.4 1 1
Processing: 203 1079 851.4 1771 2088
Waiting: 203 1078 851.4 1771 2087
Total: 204 1080 851.4 1772 2089
Percentage of the requests served within a certain time (ms)
50% 1772
66% 1850
75% 1928
80% 1931
90% 1991
95% 2089
98% 2089
99% 2089
100% 2089 (longest request)
> ab -n 20 -c 1 http://127.0.0.1:8070/
This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 127.0.0.1 (be patient).....done
Server Software: nginx/1.15.10
Server Hostname: 127.0.0.1
Server Port: 8070
Document Path: /
Document Length: 2857 bytes
Concurrency Level: 1
Time taken for tests: 0.050 seconds
Complete requests: 20
Failed requests: 0
Total transferred: 63540 bytes
HTML transferred: 57140 bytes
Requests per second: 399.98 [#/sec] (mean)
Time per request: 2.500 [ms] (mean)
Time per request: 2.500 [ms] (mean, across all concurrent requests)
Transfer rate: 1240.94 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.5 0 1
Processing: 1 2 0.5 2 2
Waiting: 1 1 0.5 1 2
Total: 1 2 0.5 2 3
Percentage of the requests served within a certain time (ms)
50% 2
66% 2
75% 2
80% 3
90% 3
95% 3
98% 3
99% 3
100% 3 (longest request)
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