Am 09.05.2019 um 12:50 schrieb Jonas Smedegaard: > [ replying to list, not discretely ] > > Quoting Lothar Schilling (2019-05-09 12:36:55) >> Am 09.05.2019 um 12:26 schrieb Jonas Smedegaard: >>> 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 >>> >> No, actually I did not. But on that very same machine I had installed >> Centos 7 a few days earlier. There were no problems. > I am not familiar with Centos but imagine they build kernels differently > than Debian - in particular handle firmware differently. That's why I > bring up that detail. > > NB! Debian mailinglist posting style is to post only to list: > https://www.debian.org/MailingLists/#codeofconduct > > (I guess your posting to me discretely was simply an error) > > > - Jonas
Yes, posting to you instead of the list was by accident. Sorry. I still do not think, though, that this is firmware-related. But I'll ask HP Support. In the meantime I hope there is going to more suggestions for a solution to my weird problem...
