Receive – Xen Driver overhead Profiling shows slower instruction execution with Xen Driver than w/Linux (both use 100% CPU) Profiling shows slower instruction execution with Xen Driver than w/Linux (both use 100% CPU) Data TLB miss count 13 times higher Data TLB miss count 13 times higher Instruction TLB miss count 17 times higher Instruction TLB miss count 17 times higher Xen: 11% more instructions per byte transferred (Xen virtual interrupts, driver hypercall) Xen: 11% more instructions per byte transferred (Xen virtual interrupts, driver hypercall)
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