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A comment on The Case for a High-Level Kernel-Bypass I/O Abstraction.

Re:The Case for a High-Level Kernel-Bypass I/O Abstraction by _pmf_ on Thursday May 23, 2019 @04:01AM (#19989544)
What about UIO?
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Re:The Case for a High-Level Kernel-Bypass I/O Abstraction by iyzhang on Thursday May 23, 2019 @06:54AM (#19990483)
It depends on the interface for the drivers to the application. However, UIO doesn't seem to support DMA, which is a non-starter.

RDMA and DPDK both use user-space drivers, which is necessary for kernel-bypass. I'm not advocating for a particular kernel-bypass solution. I'm arguing that if we use kernel-bypass for I/O, we should have a common, efficient, high-level interface for it.

[ Parent | on HN ]