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Cloud Hypervisor 40 Released With Better Boot Time Performance
Cloud Hypervisor 40.0 is out today for this open-source Rust-written VMM that started off as an Intel software project and evolved into a multi-vendor initiative with backing from the likes of Microsoft, Arm, AMD, and others for a cloud-focused, security-critical virtualization hypervisor.
Today's Cloud Hypervisor 40.0 release brings support for restoring file descriptor backed network devices, boot time performance has improved, L1 cache details are more often correctly propagated to the guest VMs, the default topology for guests now uses multiple cores rather than sockets, and various bug fixes. Among the boot time performance work in Cloud Hypervisor 40 is when having multiple cores to avoid CPUID instructions for setting the LAPIC ID and another optimization by seeding the kernel file descriptor table. Intel, Microsoft, Rivos, Tencent, and Bytedance were among the companies contributing code to Cloud Hypervisor 40.About The AuthorMichael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience.
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