VariableS3_STORAGE_CHUNK_SIZE
DescriptionS3_STORAGE_CHUNK_SIZE Environment Variable

For improved performance, you can set the S3/GCP storage sizes. The first option here sets the chunks for upload. The minimum is 5 MB, and the maximum is 8 MB — the default is 8 MB.

ini files
S3_STORAGE_CHUNK_SIZE=8388608
S3_STORAGE_CHUNK_COUNT=4
S3_STORAGE_UPLOAD_CONCURRENCY=vcores/2
S3_STORAGE_DOWNLOAD_CONCURRENCY=vcores/2

The second option here is for the number of parallel chunks at a time for each file. This is only for S3. The third option is for the number of concurrent uploading files. The last is the number of concurrent downloading files.