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Deepin Linux
Deepin Linux
Jul 12, 2025 · Fundamentals

How Virtio Delivers Near‑Native I/O Performance in Linux Virtual Machines

This article explains the architecture, data‑flow mechanisms, and core APIs of Virtio, the semi‑virtualized I/O framework that powers Linux I/O virtualization in KVM/QEMU, detailing ring buffers, virtqueues, driver initialization, and performance optimizations for near‑native throughput.

KVMLinuxQEMU
0 likes · 43 min read
How Virtio Delivers Near‑Native I/O Performance in Linux Virtual Machines
UCloud Tech
UCloud Tech
May 23, 2019 · Cloud Computing

How SPDK Boosts Cloud Disk I/O Performance: Hot Upgrade & Online Migration

This article explains how using the Storage Performance Development Kit (SPDK) optimizes virtualized I/O paths for cloud disks, covering its architecture, virtio vring basics, hot‑upgrade solutions, online migration techniques, and io_uring enhancements that together achieve up to 1.2 million IOPS with dramatically reduced latency.

Performance optimizationSPDKcloud storage
0 likes · 14 min read
How SPDK Boosts Cloud Disk I/O Performance: Hot Upgrade & Online Migration