Microsoft is advancing its serverless computing ambitions with Hyperlight Wasm, a new OS-free host for WebAssembly workloads based on its minimal hypervisor. Demonstrations revealed Hyperlight's speed capabilities, showcasing rapid response times and the flexibility to host various programming environments. A significant requirement for serverless computing hosts is the capacity to launch micro VMs quickly and effectively manage different languages. However, deploying Hyperlight requires additional coding efforts, which may pose challenges for developers outside hyperscale cloud providers.
Back when I first wrote about Hyperlight, Microsoft's minimal hypervisor, I speculated that it had a possible role as a WebAssembly-based alternative to serverless computing tools like Azure Functions.
Microsoft showed off this speed in a demo at KubeCon North America in November, a Rust-based web server executing multiple functions on micro VMs, spinning up new micro VMs or reusing warm ones.
These two demonstrations show two key requirements for a serverless computing host. First, Hyperlight can deliver responses to requests extremely quickly.
It's important to remember that Hyperlight Wasm is a virtual machine host. You will need to write the code necessary to load Hyperlight's guest applications and run the Hyperlight VM.
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