Some additional performance measurements with dd... speed test with /dev/zero
upload/write: dd if=/dev/zero of=/mnt/cifs_media/test.iso bs=10M count=400 400+0 records in 400+0 records out 4194304000 bytes (4,2 GB, 3,9 GiB) copied, 40,4893 s, 104 MB/s download/read: dd if=/mnt/cifs_media/test.iso of=/dev/zero bs=10M 400+0 records in 400+0 records out 4194304000 bytes (4,2 GB, 3,9 GiB) copied, 37,393 s, 112 MB/s More practical up- and download speeds upload: dd if=/home/me/file.iso of=/mnt/cifs_media/file.iso bs=10M 767+1 records in 767+1 records out 8048736256 bytes (8,0 GB, 7,5 GiB) copied, 93,209 s, 86,4 MB/s download: dd if=/mnt/cifs_media/file.iso of=/home/me/file2.iso bs=10M 767+1 records in 767+1 records out 8048736256 bytes (8,0 GB, 7,5 GiB) copied, 81,2462 s, 99,1 MB/s So cifs and other underlying systems and hardware seem to be capable to use maximum speed. But more important, if I lower bs, the speed drops down really hard. Upload with bs=... - Default (512) -> 830 kB/s - 4096 -> 6,2 MB/s So maybe the file managers and rsync or their underlying systems are using these small bs? -- 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: New 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 : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
