Thank you for your reply.
This website is primarily used for personal knowledge management. It is not open for registration, and I am the only user online. My VPS has the following specifications: 10 vCore (ARM64), 16 GB RAM, and 512 GB NVMe. I believe the performance should be sufficient.
1. Did the API request succeed, and was only one post created?
Yes, the API post was successful, and only one post was created.
2. From the client’s perspective, how long did the API request take?
How should I check this? I'm not quite sure.
3. During the API post, were CPU, memory, swap space, or disk I/O saturated?
I checked the monitoring logs, and none of these resources were saturated during the API post.
4. Are Redis and Postgres located in the same container/host and running properly?
They are in the same container and running properly.
5. If posting a small plain-text post without images or uploads, does the warning still appear?
Yes, the warning also appears for small plain-text posts.
6. Are any non-standard plugins installed?
Apart from the plugins installed by default, no other plugins have been installed.