#kvmserver
First release of #KVMserver fast per-request isolation for Linux executables using #TinyKVM.
In a React page rendering benchmark with #Deno we see overhead of just 10s of µs, far faster than existing alternatives using v8 isolates (ms) or JS in WebAssembly (10s of ms).
github.com/libriscv/kvm...
GitHub - libriscv/kvmserver: Fast per-request isolation for Linux executables with TinyKVM
Fast per-request isolation for Linux executables with TinyKVM - libriscv/kvmserver
github.com
July 21, 2025 at 5:16 PM
Somewhat orthogonally I’ve been trying to get fast request isolation working JS and have spent the past couple of months working with the TinyKVM author on building KVMServer which runs my React server rendering benchmark with Deno in under a ms. (x86_64 only for now.) github.com/libriscv/kvm...
GitHub - libriscv/kvmserver: Fast per-request isolation for Linux executables with TinyKVM
Fast per-request isolation for Linux executables with TinyKVM - libriscv/kvmserver
github.com
August 18, 2025 at 10:25 PM
This is an area I’m interested in because I want to see fast per request isolation for server rendering of react pages. The best approach I’ve found so far is using TinyKVM’s fast snapshot restore which has just 10% overhead or so.

github.com/libriscv/kvm...
GitHub - libriscv/kvmserver: Fast per-request isolation for Linux executables with TinyKVM
Fast per-request isolation for Linux executables with TinyKVM - libriscv/kvmserver
github.com
December 30, 2025 at 4:56 AM
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May 20, 2026 at 10:01 AM
I initially started with building directly on deno_runtime (provides more than deno_core) but abandoned it for the kvmserver approach because I wanted a general request->response pattern and doing that efficiently really requires access to the deno internals. That limitation doesn’t apply to you.
August 18, 2025 at 10:53 PM