• given a data file sample named data.log
• modify your config to use the stdin input so that you can pipe you sample log file to logstash

input {
  stdin {
    codec => line
  }
}

• modify your config to use the dots output

output {
  dots {}
}

- continously send your sample data to logtash and check pv numbers
```sh
$ while true; do cat t.t; done | bin/logstash -f myconfig.conf | pv -Wbart  > /dev/null
10.6KiB 0:01:15 [ 631 B/s] [ 732 B/s]

Here [ 631 B/s] is the current throughput in events per second and [ 732 B/s] is the average throughput for the test duration