Hello, how can I adjust the upload speed?

[duizhenpeng]

Hello, how can I adjust the upload speed?
When using createWriteStream is very slow, writeFile is very fast. But I am a file upload larger than 2GB, which can use createWriteStream . Hope to help thank you.

[julien-f]

It probably has to do with the parallel approach of writeFile.

I don't have much time to maintain this lib but PRs are very much welcome 🙂

[duizhenpeng]

Thank you, I need to study it.

[vdiez]

Here is how aws-sdk handles concurrency from a single readStream:

https://github.com/aws/aws-sdk-js/blob/4d5e10ea8102b06756121e1a32d82e287d211e7e/lib/s3/managed_upload.js#L418

A PR would be very helpful indeed.