node --version
v10.5.0
R=1 PORT=3000 node yeps/router.js
ab -c 100 -n 10000 http://localhost:3000/1
Master 3958 is running
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking localhost (be patient)


Server Software:        
Server Hostname:        localhost
Server Port:            3000

Document Path:          /1
Document Length:        1 bytes

Concurrency Level:      100
Time taken for tests:   2.127 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      760000 bytes
HTML transferred:       10000 bytes
Requests per second:    4700.92 [#/sec] (mean)
Time per request:       21.272 [ms] (mean)
Time per request:       0.213 [ms] (mean, across all concurrent requests)
Transfer rate:          348.90 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   5.0      1     298
Processing:    10   20  30.3     15     311
Waiting:       10   18  28.3     14     309
Total:         10   21  30.7     16     313

Percentage of the requests served within a certain time (ms)
  50%     16
  66%     18
  75%     19
  80%     20
  90%     23
  95%     28
  98%     51
  99%    121
 100%    313 (longest request)