Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
qemu
-
QEMU AioContext removal and how it was done
https://gitlab.com/qemu-project/qemu/-/blob/master/hw/scsi/s...
QEMU's IOThreads allow the user to configure the threads and get something similar to thread per core architecture. But if 1 thread becomes a bottleneck, then some form of thread synchronization is needed again even with thread per core architecture. Some problems can be parallelized and they work well with thread per core.
-
Why are Apple Silicon VMs so different?
Add `ENV ERL_FLAGS="+JPperf true"` to your Dockerfile and it will build just fine cross platform. The flag just changes some things during build time and won’t affect runtime performance.
[1] https://gitlab.com/qemu-project/qemu/-/issues/1034
-
RISC-V Vector benchmark results
> I don't know how rdcycle works on qemu.
That's a good question! I had to look it up myself ...
Obviously qemu TCG isn't a cycle-accurate emulation. Using RDCYCLE / reading the corresponding CSR eventually calls https://gitlab.com/qemu-project/qemu/-/blob/69680740eafa1838... which calls cpu_get_host_ticks is basically an arch-independent wrapper around RDTSC.
So it just measures the time taken to run using RDTSC. Which I guess is what you would want (maybe?). It would measure the time taken to emulate the vector instruction in host instructions.
> This benchmark is more meant for developers to figure out how to vectorize algorithms effectively, as in which instructions to choose.
Absolutely, I'm not saying the qemu results would say anything very deep, but they're kind of interesting from the point of view of either optimizing qemu or if you have to use qemu because the hardware you want isn't available / isn't cheap enough.
-
The IMPOSSIBLE RISCV HACK: Vector Extension 0.7.1-draft w/ current Linux kernel! – René Rebe
I see the commits that started switch support from RVV 071 to 100 start here, https://gitlab.com/qemu-project/qemu/-/commit/9ec6622db30df1c00d863c1ffc33341f9e0a534d
-
I booted Linux 292,612 times
>> https://gitlab.com/qemu-project/qemu/-/issues/1696 ]
> Can I please just get the detail in mail instead of having to go look at random websites?
Maybe it's me but if I did boot boot linux 292.612 times to find a bug, you might as well click a link to a repository of a major open source project on a major git hosting service.
Is it really that weird to ask people online to check a website? Maybe I don't know the etiquette of these mail lists so this is a geniune question.
-
Rise: Accelerate the Development of Open Source Software for RISC-V
Capstone is used[1] by QEMU as disassembly engine in debug logs and in monitor mode debugger, by the way, so it's in the scope of the RISE effort.
[1] https://gitlab.com/qemu-project/qemu/-/blob/master/disas/cap...
-
Intel Arc 750 Crashes Host + Display Cable Workaround not needed anymore (Windows)
A user on the qemu bugtracker found a way to get the Intel Arc working across resets without crashing the host: Just don't passthrough the audio device of the GPU and everything works!
- Qemu 7.2.2: command line syntax in libvirt domain changed
- Anyone know if there's a way to disable ReBar on only one GPU?
-
[RFT] Allow QEMU to expose static REBAR capability
[1]https://gitlab.com/qemu-project/qemu/-/commit/3412d8ec9810b819f8b79e8e0c6b87217c876e32 [2]https://gitlab.com/alex.williamson/qemu/-/commit/9a6d1822a2bd55f5dee1aec1b6529ae57949d5ba.patch
lima
-
Colima k8s nix setup
You can run a virtual machine (e.g. lima) from inside a nix-shell, exactly as you would do with a regular shell.
-
Ask HN: Startup Devs -What's your biggest pain while managing cloud deployments?
for others similarly curious, here's an example of the thing: https://github.com/noop-inc/template-java-spring-boot/blob/m...
they seem to be using the excellent lima <https://github.com/lima-vm/lima#readme> for booting on macOS; I run colima for its containerd and k8s support but strongly recommend both projects $(brew install lima colima)
- macOS 14.4 causes JVM crashes
- Lima launches Linux virtual machines for macOS
-
Simulate an Ubuntu-like VM inside macOS
Lima is what I use as well. It's quick and easy to just fire up a VM with default settings, but also very easy to configure with different file sharing options, port forwarding, different linux distributions, etc. (their examples are also pretty good IMO [1]).
In particular I use it to run an amd64 VM, which I need to run a stubborn service for work that doesn't run on arm CPUs.
[1] https://github.com/lima-vm/lima/tree/master/examples
-
Why are Apple Silicon VMs so different?
Lima (1) is a project that packages Linux distros for MacOS and executes them via qemu in the backend. Maybe you could solve your problem by launching one of their vms and inspecting the command line it generates. You might find an option you were missing.
(1) https://github.com/lima-vm/lima
-
The beginning of my eBPF Journey - Kprobe Adventures with BCC
If you wish to delve into all the configuration possibilities for Lima VM, you can visit this resource.
-
UTM – Virtual Machines for iOS and macOS
I'd say Lima and Colima should be enough for most use cases:
https://lima-vm.io/
https://github.com/abiosoft/colima
-
Lima: Linux Virtual Machines on macOS
Github: https://github.com/lima-vm/lima
Lima wraps QEMU in a simple CLI, with neat features for container users, such as filesystem sharing and automatic localhost port forwarding, as well as DNS and proxy propagation for enterprise networks. Rancher Desktop wraps Lima with k3s integration and GUI.
Talks: https://github.com/lima-vm/lima/blob/master/docs/talks.md
- FLaNK Stack Weekly for 17 July 2023
What are some alternatives?
gcc
colima - Container runtimes on macOS (and Linux) with minimal setup
riscv-binutils-gdb - RISC-V backports for binutils-gdb. Development is done upstream at the FSF.
multipass - Multipass orchestrates virtual Ubuntu instances
nbdkit
podman - Podman: A tool for managing OCI containers and pods.
safeclib - safec libc extension with all C11 Annex K functions
Docker-OSX - Run macOS VM in a Docker! Run near native OSX-KVM in Docker! X11 Forwarding! CI/CD for OS X Security Research! Docker mac Containers.
lzbench - lzbench is an in-memory benchmark of open-source LZ77/LZSS/LZMA compressors
UTM - Virtual machines for iOS and macOS
CLK - A latency-hating emulator of: the Acorn Electron and Archimedes, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1/2, Oric 1/Atmos, early PC compatibles, Sega Master System, Sinclair ZX80/81 and ZX Spectrum.
minikube - Run Kubernetes locally