node --version
v10.5.0
R=1 PORT=3000 node express/router.js
ab -c 100 -n 10000 http://localhost:3000/1
Master 3477 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:   3.944 seconds
Complete requests:      10000
Failed requests:        0
Total transferred:      1990000 bytes
HTML transferred:       10000 bytes
Requests per second:    2535.41 [#/sec] (mean)
Time per request:       39.441 [ms] (mean)
Time per request:       0.394 [ms] (mean, across all concurrent requests)
Transfer rate:          492.72 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0   11  37.4      8     550
Processing:    10   27  52.7     21     561
Waiting:       10   24  52.0     18     561
Total:         16   39  64.6     30     574

Percentage of the requests served within a certain time (ms)
  50%     30
  66%     32
  75%     33
  80%     34
  90%     38
  95%     42
  98%    379
  99%    561
 100%    574 (longest request)