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I feel that the speed of backup has declined lately, so I'm wondering, whar other people experience. My VM's run of a Synology NAS using NFS3 with a 10 gigabit/s link. The NAS itself has it's disks in a RAID6 configuration. If I test the disk-speed from within one of the Linux-VM's using 'dd' I...

After the latest upgrades, that I guess for some part has to do with the Meltdown/Spectre-problem, I experience a huge loss in performance when I do backup of VM's. And I mean HUGE - more than 50%. Has anyone else noticed something like this?

I've recently switched our relatively tiny virtual-infrastructure to Proxmox from Xen, and I'm so far REALLY pleased with it. I'm running 8 nodes in a cluster, and everything is running great. However, I have a few older Linux-servers running Ubuntu 12.04 and Debian 6 (Squeeze) for various...