Quoting Lothar Schilling (2019-05-09 10:49:32) > for years I have used CentOS for our server landscape. Now I decided > to give Debian a try. Welcome to Debian! I sincerely hope you will appreciate Debian. > I just set up a Stretch 9.8 system supposed to become our main backup > server. So I set up a backup job wih rsync. But the going is really > very very slooooow. Trying to figure out what's happening: > > * iperf -c [host] => bandwith almost 1000 Mbit, that's fine. > * dd if=/dev/zero of=/daten/testfile bs=1G count=10 oflag=direct => > 10737418240 Bytes (11 GB, 10 GiB) kopiert, 40,4992 s, 265 MB/s, so > that's fine as well > > But whenever I try to rsync, cp or scp - whether copy files on the local > hard disk only or over the network - speed goes down to 500 kB/s. > > Filesystem is ext4. > > I don't have any clue about what's going on. Any kind of help would be > appreciated, thank you! Is _only_ transfer speed affected? I am no expert in this, but imagine that if you rsync massive amounts involving hardlinks then memory becomes a problem too. Perhaps run atop to monitor bottlenecks live - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
Attachment:
signature.asc
Description: signature