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