Donnerstag, 2. Oktober 2014

better disable c-states on virtualization host

summary: if you have problems check bios updates or disable c-states:

Hosts Become Unresponsive with XenServer on Nehalem and Westmere CPUs
xenserver: http://support.citrix.com/article/CTX127395

Hyper-V and BIOS power plans (c-states)hyper-v: http://blogs.technet.com/b/virtualpfe/archive/2012/09/14/hyper-v-and-bios-power-plans-c-states.aspx

Hyper-V: Performance decrease in VMs on Intel Xeon 5500 (Nehalem) systems
http://support2.microsoft.com/kb/2000977