>>> On 13.02.19 at 02:31, <pers...@gmail.com> wrote: > 4. NVME passthrough performance: this is improved when VMEXITs are avoided > by using "posted interrupts" [1] available on Broadwell and later Xeon > processors or AWS nested hypervisor "metal" [2]. For commodity x86 CPUs > which do not have posted interrupts, Linux [3] and Hyper-V [4] have used > "hybrid polling" to achieve good I/O performance at the cost of CPU cycles. > Is this applicable to Xen?
The number of references you make alone already suggest to me that this is not a topic usefully discussed on a phone call. May I suggest to use the mailing list for topics requiring a lot of context? Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel