On samedi, 4 novembre 2017 17.56:36 h CET Bob Farmer wrote: [snip] > > Don't think Spool Attributes would be relevant here because, as I > mentioned, I'm just backing up a single very large test file. First I'm > trying to evaluate Bareos's potential throughput, but of course the plan > later will be "real" backups, so I'll definitely check that out once I > get to that stage. > > I did discover the first bottleneck, after going through the source code > of the file daemon. The default fileset .conf file contains "Signature > = MD5". Even on a fairly nice CPU, that was capping the file daemon's > transmission speed to roughly 200 MB/sec because of the calculations > required. Now I'm able to get up to 350-500 MB/s which still isn't > anywhere near what it should be, but at least the first bottleneck is down. > > At this point, with 350-500 MB/s coming into the storage daemon, the > storage daemon is using 100% of a CPU, which I'm guessing is the next > bottleneck. Not sure why it would be using so much, but that doesn't > seem to bode well for Bareos handling large amounts of incoming data. I > guess I'll try to track down what's going on by taking a look at the > storage daemon code now. > > Thanks for the reply.
Did you have any kind of compression involved in your configuration ? Perhaps a lsof of the bareos-sd and some parts of your configuration can help. -- Bruno Friedmann Ioda-Net Sàrl www.ioda-net.ch Bareos Partner, openSUSE Member, fsfe fellowship GPG KEY : D5C9B751C4653227 irc: tigerfoot openSUSE Tumbleweed Linux 4.13.10-1-default x86_64 GNU/Linux, nvidia: 384.90 Qt: 5.9.2, KDE Frameworks: 5.39.0, Plasma: 5.11.2, kmail2 5.6.2 -- You received this message because you are subscribed to the Google Groups "bareos-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
