unit affects the performance of Node.js operations with Redis

[dbit-xia]

Hello, I'm using Node.js 8/12 and after running with unit for several hours, I encountered a strange issue.
When not using unit, executing Redis commands consecutively with await 400,000 times only consumes 0.3 CPU cores and completes in 3 minutes.
However, when using unit, the same operation uses 1 full CPU core (100%) and takes more than 30 minutes to complete.

I've repeatedly confirmed that this issue is related to unit, but I don't understand why unit is affecting Redis operation performance.
During the testing period, only one Node process was running, and there was no significant difference in memory usage.
Could you suggest some directions for troubleshooting this?

Version: 1.32.1
Os: docker debian:bullseye-20240513
redis module: 2.8.0

[ac000]

When not using unit,

Does this mean when Unit is not running?

However, when using unit,

Does this mean when Unit is running?

the same operation uses 1 full CPU core (100%)

What is using the CPU? Unit, Redis, something else?