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    High KVM CPU load when VM on ZFS

    Hi Guys, I've setup one of my new servers today for some testing. Xeon Silver CPU 256GB DDR4 Samsung 1733 NVME drives As long as the VM is running on local lvm-thin type storage, the disk performance in the VM is blazing fast (7GB/sec read, 4GB/sec write) with low cpu load. As soon as I run...
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    Slower networks; iperf retr

    Hi Guys, I am looking into some network issues i am having. On the daily use, no issues are noticable but when performing speedtests, I can clearly see speeds are dropping down to 300mbit/sec on gbit lines. Windows VM(virtio 10G NIC) to Windows VM(virtio 10G NIC) routed via PFsense VM (10G) on...
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    Low filetransfer performance in Linux Guest (ceph storage)

    Hi All, I have been a big user of ESX but now setting foot in the Proxmox world with Ceph storage. I got my (test) cluster running. Not as best practice yet but i'm not too worried about that right now.. It's a X5670 cluster with 120GB RAM and 1x 2TB OSD per machine. My Ceph cluster seems to...

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