Quoting Lothar Schilling (2019-05-09 11:46:00) > Am 09.05.2019 um 11:14 schrieb Jonas Smedegaard: > > Quoting Lothar Schilling (2019-05-09 10:49:32) > >> 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 > > > It is most definitely not a memory or cpu problem. It's a HP Proliant > with 32 GB RAM and a Intel Xeon CPU 2.40GHz with 4 cores. Also the > problem stays the same if I just copy one large file.
Fair enough :-) Another shot in the dark: Did you install appropriate firmware packages? - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
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