Intel-Led Cloud Hypervisor 30 Released With CLI Changes To Reduce The Binary Size

Written by Michael Larabel in Virtualization on 26 February 2023 at 07:17 AM EST. Add A Comment
Cloud Hypervisor as a reminder is what started out as an open-source Intel project to develop a modern hypervisor focused on cloud workloads and with security being among the leading concerns. Cloud Hypervisor more recently is developed as a Linux Foundation project but with Intel's software engineers being among the leading contributors to the project along with the likes of Arm, Tencent, Bytedance, and Microsoft.

Debuting this week was Cloud Hypervisor 30.0 as the newest feature update to this Rust-written VMM. Cloud Hypervisor 30.0 changes around one of its Rust crates for its command-line argument handling to reduce its binary size from about 3.6MB to 3.3MB. But with this changing around of the Rust crate from clap to argh, it does lead to several command line syntax changes. Moving forward now rather than --option=value the --option value syntax is required along with other CLI syntax changes for that slight savings to the binary size.

Cloud Hypervisor 30 also ships basic vfio-user server support, initial heap profiling support, and updated documentation. There are also a number of bug fixes with the new Cloud Hypervisor.

Cloud Hypervisor logo

Downloads and more details on the Cloud Hypervisor 30 release via GitHub.
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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