Do we have performance comparison between both implementation? Thanks Changchun
-----Original Message----- From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Xie, Huawei Sent: Tuesday, August 26, 2014 7:06 PM To: dev at dpdk.org Subject: Re: [dpdk-dev] [RFC] lib/librte_vhost: qemu vhost-user support into DPDK vhost library Hi all: We are implementing qemu official vhost-user interface into DPDK vhost library, so there would be two coexisting implementations for user space vhost backend. Pro and cons in my mind: Existing solution: Pros: works with qemu version before 2.1; Cons: depends on eventfd proxy kernel module and extra maintenance effort Qemu vhost-user: Pros: qemu official us-vhost interface; Cons: only available after qemu 2.1 BR. huawei