Objects, attributes, maps, oh my(bernsteinbear.com)
14 points by ibobev | 1 comments
A blog post explaining how dynamic language runtimes use maps/shapes/hidden classes and inline caches to speed up object attribute access, with Python sketches.
#virtual-machines on Hacker News
13 stories tagged virtual-machines, newest first.
Capsem – a Rust hypervisor sandboxing AI agents in air-gapped Linux VMs(capsem.org)
5 points by madars | 2 comments
Landing page for Capsem, a Rust-powered hypervisor that sandboxes each AI coding agent in its own air-gapped Linux VM for visibility and control.
Running Windows desktop tests from Linux with disposable VMs(qawolf.com)
76 points by jadenlemmon | 27 comments
QA Wolf blog post describing E2exe, their system for running Windows desktop app tests at scale from Linux using disposable VMs.
When the machine boots but the reply disappears(mainbrella.com)
4 points by cs1996 | 3 comments
Mainbrella engineering blog post on designing its backend so retries are safe when a Linux machine is created but the reply to the client is lost.
Show HN: NSL – WSL for Linux(frostyard.github.io)
142 points by bketelsen | 86 comments
Project page for nsl, a tool that gives Linux hosts persistent distro environments via systemd-nspawn containers in a small VM, mimicking WSL.
Claude Desktop spawns 1.8 GB Hyper-V VM on every launch, even for chat-only use(github.com)
392 points by tonyrice | 273 comments
GitHub issue in the anthropics/claude-code repo reporting that Claude Desktop launches a 1.8 GB Hyper-V virtual machine on every start, even when used only for chat.
I am building a cloud(crawshaw.io)
1063 points by bumbledraven | 533 comments
Personal blog post by David Crawshaw on why he is founding exe.dev to build a new cloud, written on its fundraising announcement day.
Anthropic Cowork feature creates 10GB VM bundle on macOS without warning(github.com)
335 points by mystcb | 166 comments
A GitHub issue on anthropics/claude-code reporting that the Cowork feature creates a 10GB VM bundle that makes Claude Desktop slow on macOS.
Exe.dev(exe.dev)
420 points by achairapart | 273 comments
Landing page for exe.dev, a service offering SSH-accessible virtual machines with persistent disks and sudo access.
I made my VM think it has a CPU fan(wbenny.github.io)
635 points by todsacerdoti | 167 comments
Blog post explaining how to make a Windows VM report a CPU fan via WMI's Win32_Fan class so malware's anti-VM checks pass and samples run.
Why I wrote the BEAM book(happihacking.com)
577 points by lawik | 144 comments
A Happi Hacking blog post in which the author explains why they wrote The BEAM Book, a book about the Erlang virtual machine.
Quickemu: Quickly run optimised Windows, macOS and Linux virtual machines(github.com)
411 points by overbytecode | 128 comments
GitHub repository for Quickemu, a tool that quickly creates and runs optimised Windows, macOS and Linux desktop virtual machines using QEMU.
I have written a JVM in Rust(andreabergia.com)
655 points by lukastyrychtr | 144 comments
Blog post by Andrea Bergia describing rjvm, a toy Java Virtual Machine he wrote in Rust as a learning project, and its limitations.