ByteDance SYS Tech
Nov 10, 2022 · Cloud Computing
Achieving 5× Faster KVM Hot‑Upgrade with Transparent PCI Passthrough
This article reviews ByteDance's STE team's breakthrough that reduces KVM hot‑upgrade downtime from 1000 ms to 160 ms by transparently supporting PCI passthrough devices, detailing the underlying challenges, three key kernel/hypervisor improvements, proof‑of‑concept results, and their impact on cloud IaaS operations.
KVMPCI passthroughcloud computing
0 likes · 14 min read