id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,launchpad_bug 1638,S3 backend: Upload of large files consumes memory > twice the size of the file,zancas,," During upload greater than 2 (~2.5) times the size of shares (both mutable and immutable) are consumed on the storage server. For storageservers running with tight memory constraints and/or large shares this is problematic. Attached is a 1-second-resolution time-series of memory usage generated by ps for a 200 MB immutable file upload to an amazon EC2 t1.micro. The exact command: ps -Ovsize,rss -C tahoe",defect,closed,major,eventually,code-storage,cloud-branch,fixed,reliability availability scalability usability performance memory large s3-backend,,