Thank you for your bug report, what are the performances if you use "cp" from the command line and if you use "gio copy"? Those are probably closer things to compare nautilus to than rsync/dd which don't have the same purpose
** Changed in: nautilus (Ubuntu) Importance: Undecided => Low ** Changed in: nautilus (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1782535 Title: cifs - poor upload speed with nautilus compared to rsync Status in nautilus package in Ubuntu: Incomplete Bug description: I'm mounting folders from my NAS on my computer (Ubuntu 18.04) with cifs. Copying an 8 GB file... Upload (local -> mounted) - Nautilus/Nemo -> 6 MB/s - rsync -> 50-60 MB/s Download performance is also strange, but not my biggest concern. Download (mounted -> local) - Nautilus/Nemo -> 90 MB/s - rsync -> 50-60 MB/s rsync command (upload): rsync --progress /home/me/file.iso /mnt/cifs_media/ fstab entry: //nas/media /mnt/cifs_media cifs vers=3.0,uid=me,gid=me,credentials=/home/me/.smbcredentials,dir_mode=0700,file_mode=0700 0 0 Any idea, why Nautilus is uploading up to 10 times more slowly than rsync, although both using the same cifs, os, hardware, network etc.? PS: Further info for bug report 1) The release of Ubuntu: Ubuntu 18.04 LTS 2) The version of the package: Nautilus 3.26.3 3) What you expected to happen: At least same speed as with using rsync 4) What happened instead: See above To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1782535/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp