What is the problem you are having with rclone?
Trying to upload 2GB files to my Cloudflare R2 bucket, but upload speeds won't go more than 20MBps, i'm using a server with 10gbps network (nonshared), and can't upload faster than 20MBPS.
tried using --fast-list but didn't improved at all, and researching a bit about S3 i decided to use [--s3-upload-concurrency 32]
and it increased my upload from 30MB/s up to 70 MB/s
but reading the other answer below from @ncw i decided to look about s3 specific flags, and i found this following;
(Increasing --s3-upload-concurrency will increase throughput (8 would be a sensible value) and increasing --s3-chunk-size also increases throughput (16M would be sensible). Increasing either of these will use more memory. The default values are high enough to gain most of the possible performance without using too much memory.)
then my command become this; --ignore-checksum --fast-list --s3-upload-concurrency 32 --s3-chunk-size 128000
and now i've increased my speed from 70MB/s up to 110MB/s (was max i could see for a 2GB file before it complete upload)
and for a 10GB file for example, speed reached 250MB/s
i'm satisfied with these speeds now
thank you so much @ncw and @asdffdsa