When set worker to 3 in filebeat config case CPU usege increasing to 100%

[Feng_Mi]

Could Any body explain it for me?
ES performance show strange too.
When set woker to 1 and 3:

This is my logic server cpu usage:

[Feng_Mi]

Current filebeat config：

[ruflin]

Which version of Filebeat and Elasticsearch are you using?

Please don't post config and commands as pictures, this is very hard to read.