How can I check logstash throughput(event per second)?

Elastic Stack Logstash
1

I am sending data from Logstash to Elasticsearch.
(filebeat -> kafka -> logstash -> elasticsearch)

I want to know the Logstash Event Per Second(EPS)
(it is assumed that the environment of Elasticsearch is the same.)

Please let me know if there is a good way to test EPS without using the x-pack

2

There is an API for Logstash but I've never used it and unsure you can get exactly what you need from it. I would look at the Node Stats API first.