Why upload speed slow and below 3mbps?

[fcdont]

Question
I have a dedicated server with 1gbps port and pretty high end spec, I expect the upload speed would be like 10/20mbps, but the upload speed only below 3mbps like 2.3 to 2.5mbps. When i try a non tus file upload, it reaches to 15-35mbps. Im using nginx as reverse proxy for both tus server software and my react app. I just want to know if there is any configurations or tus upload has limit?

Setup details
Please provide following details, if applicable to your situation:

• Runtime environment:
  Node.js and Browser

• Used tus-js-client version:
  Using the latest version

• Used tus server software:
  tusd

[Acconut]

Tus itself does not have a speed limit, it's just a protocol. Debugging performance bottlenecks is impossible without more detailed information and your system and used configuration. Here are some pointers:

• Missing Nginx configuration can throttle uploads: Given nginx configuration slows down uploads over https tusd#1106
• When uploading to S3, CPU can be a limiting factor: s3store: Add tools for debugging bottlenecks tusd#924

[softpottk]

I've added the http2_body_preread_size 512k; on nginx but still same, and tried copy exact same like on the examples, the upload speed was like 20% only. Is it better to use on http1 or http2? @Acconut

[Acconut]

Are uploads faster if you send requests to tusd directly without going through Nginx first? That would tell us whether the proxy is the bottleneck or not.

[softpottk]

Are uploads faster if you send requests to tusd directly without going through Nginx first? That would tell us whether the proxy is the bottleneck or not.

On local, yes. Do you have any recommendation for other proxy/web server to use?

[Acconut]

I have made good experience with HAProxy so far. Performant and offers flexible configuration.