NewBufferedReadSeekerWriteToPool will return a new BufferedReadSeekerWriteToPool that will create a pool of reusable buffers .

NewPooledBufferedWriterReadFromProvider returns a new PooledBufferedReadFromProvider Size is used to control the size of the underlying *bufio.Writer created for calls to GetReadFrom.

Customized version of s3manager.BatchDownloadObject.

BufferedReadSeekerWriteToPool uses a sync.Pool to create and reuse []byte slices for buffering parts in memory.

S3 Downloader Optimization Because the minimum concurrent download unit for aws download api is 5M, this optimization will effectively lower this limit for batch downloading.

PooledBufferedReadFromProvider is a WriterReadFromProvider that uses a sync.Pool to manage allocation and reuse of *bufio.Writer structures.