Hello List, i am running Proxmox version 4.4 on a 3 Node Full-Meshed Cluster with Ceph.
Everythink works greate, except of the IO Performance on VMs which are Debian 5. In this Debian 5 VM i run a 2.6.32-bpo.5-amd64 Kernel with virtio and default cache I only get about a write speed of about 35MB/sec. With Debian 8 and 3.16.0-4-amd64 Kernel i get about 130MB/sec (which is the physical limit). (also using virtio - default cache) Is this performance drop with that older Kernel/Dist normal? If i have a look at dstat whilest doing my IO Test (on Debian 8 and Kernel 3.12) i can see much more performance going on the network interfaces and disk. Therefore a hardware bottle neck can not be the reason for the bad performance on Debian 5 and Kernel 2.6.32. Any ideas (other than Updating from Debian5 to Debian8)? Thanks, Mario _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
