TL;DR any optimization tips welcome for Xen-HVM VPS's, particularly for I/O and cpu weight/credit scheduler etc
The "node"
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i7-3770, 32GB RAM
Debian Wheezy, Xen 4.1.4, xen hypervisor 4.1, xentools 4.3.1, Linux kernel: 3.2 (xen), etc.
current configuration...