# What is the max throughput of the stdout?

**URL:** https://discuss.elastic.co/t/what-is-the-max-throughput-of-the-stdout/343416
**Category:** Logstash
**Created:** [September 20, 2023, 5:00am UTC](https://discuss.elastic.co/t/what-is-the-max-throughput-of-the-stdout/343416 "2023-09-20T05:00:14Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![Daniel9](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/daniel9/32/125820_2.png) [@Daniel9](https://discuss.elastic.co/u/Daniel9)
#### Post date: [September 20, 2023, 5:00am UTC](https://discuss.elastic.co/t/what-is-the-max-throughput-of-the-stdout/343416/1 "2023-09-20T05:00:14Z")

</div>

Here is my out output configration below:

```auto
output {
  stdout { codec => json_lines }

}

```

Here is my verification result:  
|Logs/s(In)|Logs/s (out)|Bytes/log (out)|Queue increase size (m)|  
|1500|200|580|700m|  
|780|200|580|600m|  
|210|180|580|~0|  
|230|180|1000|~50m|  
|230|160|4500|600m|

It seems the max throughput is about 200log/s in my case.  
my questions is:  
What's affect the stdout max throughput, cpu, IO, etc.?  
Does the size of each log affect the stdout maximum throughput? what's size affect it?

---

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 18, 2023, 5:00am UTC](https://discuss.elastic.co/t/what-is-the-max-throughput-of-the-stdout/343416/2 "2023-10-18T05:00:37Z")

</div>

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