Researchers have long predicted the demise of the operating system. As datacenter servers increasingly incorporate I\/O devices that let applications bypass the OS kernel (e.g., RDMA and DPDK network devices or SPDK storage devices), this prediction may finally come true. While kernel-bypass devices do eliminate the OS kernel from the I\/O path, they do not handle the kernel\u2019s most important job:offering higher-level abstractions. This paper argues for a new high-level, device-agnostic I\/O abstraction for kernel-bypass devices.We propose the Demikernel, a new library OS architecture for kernel-bypass devices. It defines a high-level, kernel-bypass I\/O abstraction and provides user-space library OSes to implement that abstraction across a range of kernel-bypass devices. The Demikernel makes applications easier to build, portable across devices, and unmodified as devices continue to evolve.<\/p>\n","protected":false},"excerpt":{"rendered":"
Researchers have long predicted the demise of the operating system. As datacenter servers increasingly incorporate I\/O devices that let applications bypass the OS kernel (e.g., RDMA and DPDK network devices or SPDK storage devices), this prediction may finally come true. While kernel-bypass devices do eliminate the OS kernel from the I\/O path, they do not […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"ACM","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"17th Workshop on Hot Topics in Operating Systems 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