simd
qemu
simd | qemu | |
---|---|---|
5 | 37 | |
463 | - | |
- | - | |
8.8 | - | |
over 2 years ago | - | |
WebAssembly | ||
GNU General Public License v3.0 or later | - |
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.
simd
-
The IMPOSSIBLE RISCV HACK: Vector Extension 0.7.1-draft w/ current Linux kernel! – René Rebe
I'd love to see OpenCL or WasmSIMD support for RVV 071.
-
WASM vs Native Rust performance
Wasm SIMD supports only 128-bit registers, no? https://github.com/WebAssembly/simd/blob/a78b98a6899c9e91a13095e560767af6e99d98fd/proposals/simd/SIMD.md
-
A Look at Performance in Wasmtime and Cranelift
According to the WebAssembly Roadmap, the 128-bit packed SIMD Extension proposal has been accepted and is already implemented in every major runtime except Safari, and the Relaxed SIMD proposal is planned, with Firefox already having an experimental implementation in nightly-channel builds.
- Pay Attention to WebAssembly
-
There are many like it, but this is my Rust raytracer running in WebAssembly
Thanks! You're probably right about spatial filtering with a low sphere count. SIMD is supported, that looks to work in every recent browser except Safari. Looking forward to trying that out. A really quick search of wasm-bindgen docs don't reveal an interface to use that SIMD support though. I wonder if you can unsafely inline some raw wasm like you can with asm!
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
What are some alternatives?
gc - Branch of the spec repo scoped to discussion of GC integration in WebAssembly
gcc
fast-math - Play fast and loose with IEEE-754 rewrite RULES
riscv-binutils-gdb - RISC-V backports for binutils-gdb. Development is done upstream at the FSF.
wasmer - 🚀 The leading Wasm Runtime supporting WASIX, WASI and Emscripten
nbdkit
exception-handling - Proposal to add exception handling to WebAssembly
safeclib - safec libc extension with all C11 Annex K functions
multi-value - Proposal to add multi-values to WebAssembly
lzbench - lzbench is an in-memory benchmark of open-source LZ77/LZSS/LZMA compressors
design - WebAssembly Design Documents
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.