Was looking at some older slides and found a claim that copying text around for a text editor is only practical for <256chars. It's Friday, let's see whether this is a "current" assessment, considering only the text, and none of the other things an editor does.

Yikes, OpenReview had a bug that exposed the anonymous reviewers, authors, and area chairs. openreview.net/forum/user%7... For those not familiar: it's a tool allowing running a double-blind review process (think HotCRP, EasyChair etc) except review comments and author responses are all public.

I'm doing a live Reddit AMA today at 2pm ET! Come ask me about PL, SE, the Master of Software Engineering program I run, Open Access at ACM, my music education startup Noteful, or my silly YouTube video outfits! www.reddit.com/r/IAmA/comme...

I've uploaded the slides of my recent talk "JS Engine Security in 2025": saelo.github.io/presentation.... I think there'll also be a recording available at some point (otherwise I can make one as not everything's in the slides). Fantastic conference as usual, big thanks to the PoC Crew!

Announcing Olmo 3, a leading fully open LM suite built for reasoning, chat, & tool use, and an open model flow—not just the final weights, but the entire training journey. Best fully open 32B reasoning model & best 32B base model. 🧵

Benchmarking Language Implementations: Am I doing it right? Get Early Feedback! stefan-marr.de/2025/11/expe... MoreVMs'26 is looking for submission of "experimental setups" to help language implementation researchers to avoid common benchmarking pitfalls. Submit something either Dec 17 or Jan 12.

Today I gave a talk at JSConf JP covering the implementation story of recent Node.js module loader changes (compile cache, require(esm) and synchronous loader customization hooks). Very lovely conference! Slides: github.com/joyeecheung/...

new bloggery: a look back on the last couple years of developments in v8's garbage collector wingolog.org/archives/202...

Now that this is publicly announced I can say it has been delightful to be part of the small team of contributors to FEX, bringing you x86 games to ARM64 hw - now integrated into the Steam Frame.

LuaJIT 3 might interpret an SSA-based program representation (possibly with a more optimized interpreter for platforms without JIT compilation) www.freelists.org/post/luajit/...

This post has been sitting around in my drafts since March... I hope it has its intended effect bernsteinbear.com/blog/compile...

More performance is always a good thing, right? Our colleague Mikhail’s RISC-V Summit talk “Unlocking 15% More Performance: A Case Study in LLVM Optimization for RISC-V” is now available from the Summit’s YouTube channel! www.youtube.com/watch?v=cWzu...

it has been a while, but whoo, new bloggery: "wastrel, a profligate implementation of webassembly" https://wingolog.org/archives/2025/10/30/wastrel-a-profligate-implementation-of-webassembly

Today I presented to the Wasm CG a proposal for fine-grained dynamic code generation as a core WebAssembly feature. The proposal is now at phase 1! github.com/WebAssembly/... Also immortalized in song: suno.com/song/19e0679...

59% of the non apple commits are from igalians.. 47 different igalians committed to #WebKit in this time 🙌

Leaning In! 2026 is ON! If you like #lean and are in Berlin, Germany, Europe, or anywhere on Earth, you are invited. We've got a room at Spielfeld in Berlin. See you on March 12th! More information, including tickets and the CfP, here: leaning.in/2026/

A five part roundup of my @icfp-conference.bsky.social experience, covering chairing @propl.dev, holding an OxCaml tutorial, speaking about Docker, and what I learnt from everyone! anil.recoil.org/notes/icfp25; above all, huge thanks to @ilyasergey.bsky.social for making this ICFP/SPLASH so good

We're looking forward to the RISC-V Summit North America next week where Mikhail Gadelha (one of our compiler engineers) will be presenting "Unlocking 15% More Performance: A Case Study in LLVM Optimization for RISC-V". Be sure to catch his talk next Thurs riscvsummit2025.sched.com/event/28OTp/...

Linux v6.17 has been announced, here's what Igalia contributed to it... www.igalia.com/2025/10/07/L...

I gave a talk today at @nordicjs.com about shipping Node.js packages in 2025...or how to transition from shipping dual/faux-ESM/CommonJS to shipping ESM directly! Slides at github.com/joyeecheung/...

Just arrived in Reykjavik for the #lean workshop as part of ITP 2025 leanprover-community.github.io/itp-2025-lea... I'll be presenting some of my recent work. Looking forwrard to (re)connecting with some fellow Leaners!

Something tickles me about the way this sorting paper describes WikiSort as an "alleged competitor". I like to imagine the author reading this sentence aloud laced with disdain. arxiv.org/pdf/2509.24540

That's all folks! After three intensive days of sharing knowledge and recipes about the Linux kernel, the @kernelrecipes.bsky.social 2025 is over. It was amazing and we are already looking forward to next year. 👋

The WebAssembly 3.0 spec is complete! webassembly.org/news/2025-09... This includes major features like GC, 64-bit memories, exceptions, and tail calls.

🎙 New Episode of Igalia Chats: Yeah, but for what? Wingo on Wasm @meyerweb.com and @bkardell.com chat with @wingolog.org about Web Assembly www.igalia.com/chats/wingo-...

The Mojo folks are discussing Int vs UInt for indexing forum.modular.com/t/indexer-an...

Congratulations @clairexen.bsky.social: #HotChips / IEEE TCMM 2025 Open Source Hardware Contribution Award

A few days ago I released a patch which replaces the unhinged movement system in Tex Murphy: Under A Killing Moon with mouselook + WASD. Turns out the sequel is pretty much the same, so here's a mod for The Pandora Directive. Feast your eyes on this side-by-side comparison github.com/moralrecordi...

Sure, why not. Here's another post today. Liveness analysis in Datalog! bernsteinbear.com/blog/livenes...

And you can find recordings of all the Web Engines Hackfest talks at www.youtube.com/playlist?lis...

Today I finished implementing the last of the relaxed-simd proposal (now Phase 4). That completes Wizard's support for all of the Wasm 3.0 features, which includes all the good things like exception handling, function references, garbage collection, and tail calls! github.com/titzer/wizar...

We just significantly improved the explanation of control-flow integrity (CFI) in the Low Level Software Security Book, see llsoftsec.github.io/llsoftsecboo... We’d love to hear your feedback — share your thoughts here or open an issue on github at github.com/llsoftsec/ll... #LLSoftSecBook #CFI

@riscv.org.web.brid.gy for #HPC workshop at #SC25 will be held on Monday 17th November in St Louis. The paper deadline has been extended until 15th of August, accepting both full papers and work in progress. edin.ac/3Uyeclp

I've been enjoying the talks at GUADEC 2025 and tomorrow I'll be on the stage myself, talking about what's new in JavaScript and TypeScript for GNOME development! (Sneak peek: in GNOME 49 we'll get Temporal 😄) Come see me live or follow along online at 10:10 CEST! events.gnome.org/event/259/co...

You can't shield children for ever. My son just learned of American-style mm/dd/yyyy date ordering and is rather baffled. Looks like the UK is ultimately to blame though iso.mit.edu/americanisms...

Pour one out for NativeClient, finally removed from the LLVM tree last week github.com/llvm/llvm-pr...

Really excited to see the latest #lean CSLib effort (Lean formalizations of basic and not-so-basic computer science). leanprover.zulipchat.com#narrow/chann...

The LLM-for-software Yo-yo tratt.net/laurie/blog/...

acm queue issue out on webassembly, with articles by @littledan.dev, conrad watt, ben titzer, & yours truly: queue.acm.org/issuedetail....

Recordings from last month's AsiaLLVM Developers' Meeting are now up on YouTube www.youtube.com/playlist?lis...

Proposal to write up conventions for wasm toolchain optimizations: github.com/WebAssembly/... This would allow producers to annotate code with things like "this has no side effects" that allow toolchain optimizers (like wasm-opt) to handle them better. (VMs would not use such hints)

LLVM Weekly - #600, June 30th 2025. Farewell PSTL, 21.x branch date, Flang progress report, reductions in libLLVM dynamic relocations, Windows Secure Hot-patching, and more. Also, 600 LLVM Weekly Issues, still without missing a week(!) llvmweekly.org/issue/600

An alternative algorithm for enforcing per-author paper submission limits. arxiv.org/abs/2506.20141 AI driving algorithms research, but perhaps not as expected.

I was trying out recent open weight LLMs recently and took notes on the various vendor-recommended sampling parameters muxup.com/2025q2/recom... It's more hassle than you'd like to track this down (or even what was used to obtain the advertised benchmark results).

I've added a bunch more configurations to RISC-V LLVM CI: coverage of zvl512b, zvl1024b, -mcpu=spacemit-x60 (covering zvl256b), and the "gauntlet" bot for rapid but non-exhaustive testing of a range of target options. Dashboard: igalia.github.io/riscv-llvm-ci/

I was trying out recent open weight LLMs recently and took notes on the various vendor-recommended sampling parameters muxup.com/2025q2/recom... It's more hassle than you'd like to track this down (or even what was used to obtain the advertised benchmark results).

Just arrived at Denver with other colleagues from @igalia.com to attend the #OSSummit North America, where I'll present my talk "Unlocking the Full Potential of @wpewebkit.org To Build a Successful Embedded Product". More details in sched.co/1zflb See you in just a couple of days! #wpe #webkit

"Sly 2 is the Boston Legal of PS2 platformers" This is a comparison I never expected to see old.reddit.com/r/patientgam...

Mojo attracts some criticism on /r/programminglanguages (mostly not targeted at design decisions of the language itself) and a wild clattner appears to defend/clarify old.reddit.com/r/Programmin...

I'm pleased to announce OxCaml! OxCaml is Jane Street's branch of OCaml. We've given it a new name and a snazzy logo, and done a bunch of work to make it easy for people to try.