YARP has a higher cpu usage than Nginx

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#2,427 opened on Mar 4, 2024 28 comments 1 reaction 1 assignee Claimed by @MihaZupan View on GitHub

needs-author-action Type: Bug

Dominant language: C#
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Merged PRs (30d): 2

Description

Sorry, I don't know if it is a bug.

### Describe the bug
I deployed 3 nginx at HongKong, and deployed 3 YARP at HangZhou.
> Client -> Nginx -> Yarp -> Service

Nginx forwards some services, and YARP forward one of them.

Nginx CPU
![image](https://github.com/microsoft/reverse-proxy/assets/7299249/3734bcdb-34e1-4cc3-a7a5-f2ff90187080)

YARP CPU
![image](https://github.com/microsoft/reverse-proxy/assets/7299249/28c7cfc4-50cf-4dea-a9b4-e8a5097761f6)

YARP other metrics
![image](https://github.com/microsoft/reverse-proxy/assets/7299249/49fed8a1-8399-45b1-b0b5-8c8f8ada9e5c)

Htop (Cat.Service.dll is based on YARP)
![image](https://github.com/microsoft/reverse-proxy/assets/7299249/137ca12a-b898-4bc9-9f0d-51477dfa0c7b)

I tried to analyze the CPU on vs
Top function
![image](https://github.com/microsoft/reverse-proxy/assets/7299249/4d78c2f8-2902-4b4b-a5a4-afe8e890657c)

Module View
![image](https://github.com/microsoft/reverse-proxy/assets/7299249/15d8ee80-004a-49f6-b935-56cc9c0a9755)

### To Reproduce
No exception.

### Further technical details

- Include the version of the packages you are using
2.1.0
- The platform (Linux/macOS/Windows)
Linux

They're all 4c8g, YARP on ubuntu 22.04, nginx on centos.
YARP 2.1.0 runs on .NET 8.

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YARP has a higher cpu usage than Nginx

Description

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