# Performance tuning help
**URL:** https://discuss.elastic.co/t/performance-tuning-help/207121
**Category:** APM
**Tags:** server
**Created:** [November 8, 2019, 1:49pm UTC](https://discuss.elastic.co/t/performance-tuning-help/207121 "2019-11-08T13:49:48Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Ronin](https://discuss.elastic.co/u/Ronin)
#### Post date: [November 8, 2019, 1:49pm UTC](https://discuss.elastic.co/t/performance-tuning-help/207121/1 "2019-11-08T13:49:48Z")
Using an Elastic cloud instance with 3 x APM 512 MB instances, but no matter what config performance tuning I do, I cannot get the "queue is full" spikes to stop.
Current configuration is as follows:
```auto
output.elasticsearch.worker: 32
output.elasticsearch.bulk_max_size: 5000
queue.mem.events: 50000
```
`bulk_max_size` and `mem.events` are both set to the max that Elastic cloud will allow and looking at the memory usage chart, we still have plenty unused. I have attempted many different combinations for these values with no success. Next looking at the elastisearch instances they are showing fine for disk usage, index speed, and cpu usage.
APM version 7.4.2
---
### Author:  [@Ronin](https://discuss.elastic.co/u/Ronin)
#### Post date: [November 10, 2019, 11:09pm UTC](https://discuss.elastic.co/t/performance-tuning-help/207121/2 "2019-11-10T23:09:03Z")
I was able to solve the issue by scaling up to 3 x APM 2 GB in elastic cloud. But after scale up the cpu usage and memory still showed the same in `Stack Monitoring` as show in my original post.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 1, 2019, 7:09pm UTC](https://discuss.elastic.co/t/performance-tuning-help/207121/3 "2019-12-01T19:09:06Z")
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