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#102: Achieving 10-Million IOPS from a single VM on Windows Hyper-V
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Many server workloads, for example OLTP database workloads, require high I/O throughput and low latency. With the industry trend of moving high-end scale-up workloads to virtualization environment, it is essential for cloud providers and on-premises servers to achieve near native performance by reducing I/O virtualization overhead which mainly comes from two sources: DMA operations and interrupt delivery mechanism for I/O completions. The direct PCIe NVMe device assign techniques allow a VM to interact with HW devices directly and avoid using traditional Hyper-V para-virtualized I/O path. To improve interrupt handling in the virtualization environment, Intel introduces Posted Interrupts (PI) as an enhanced method to mitigate interrupt delivery overhead in a virtualized environment, bypassing hypervisor involvement completely. In this talk, we will present Microsoft implementation and optimization of Intel PI and Hyper-V direct PCIe NVMe access on Windows platform. The results showed that we were able to achieve more than 10-Million IOPS from a single VM for the first time in the industry using an Intel Skylake based HPE commodity server with these techniques.
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146 episodes
MP3•Episode home
Manage episode 238182499 series 1393477
Content provided by SNIA Technical Council. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by SNIA Technical Council or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
Many server workloads, for example OLTP database workloads, require high I/O throughput and low latency. With the industry trend of moving high-end scale-up workloads to virtualization environment, it is essential for cloud providers and on-premises servers to achieve near native performance by reducing I/O virtualization overhead which mainly comes from two sources: DMA operations and interrupt delivery mechanism for I/O completions. The direct PCIe NVMe device assign techniques allow a VM to interact with HW devices directly and avoid using traditional Hyper-V para-virtualized I/O path. To improve interrupt handling in the virtualization environment, Intel introduces Posted Interrupts (PI) as an enhanced method to mitigate interrupt delivery overhead in a virtualized environment, bypassing hypervisor involvement completely. In this talk, we will present Microsoft implementation and optimization of Intel PI and Hyper-V direct PCIe NVMe access on Windows platform. The results showed that we were able to achieve more than 10-Million IOPS from a single VM for the first time in the industry using an Intel Skylake based HPE commodity server with these techniques.
…
continue reading
146 episodes
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