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by tiredofcareer
4815 days ago
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Actually, hypervisor details aside, 8 VCPUs fully pegged at 100% user or system time will consume 4x the capacity of 2 VCPUs fully pegged at 100% user or system time in a domU, assuming comparable chips. Always and regardless of how Xen schedules the VCPUs onto actual nodes. Your hand-waving about the hypervisor is unwarranted, since hypervisor interference under Xen shows up as its own time from the perspective of the domU (steal%) and nobody worth mentioning actually does hosting with VMware. |
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