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Apple XNU: Clutch Scheduler

https://github.com/apple-oss-distributions/xnu/blob/main/doc/scheduler/sched_clutch_edge.md
60•tosh•2h ago

Comments

trueno•1h ago
interesting. id love an eclecticlight breakdown of this. they're one of the few if only that write anything worth reading on apple hardware, i once found a QOS/scheduler insight through those guys when I couldn't get my c/cpp project pinned to the cores I wanted on m-series. https://eclecticlight.co/m1-macs/
cadamsdotcom•1h ago
> The XNU kernel runs on a variety of platforms

This is fascinating, would love to know where it’s used! (Besides macOS)

electronsoup•1h ago
Perhaps they mean ISAs
csb6•1h ago
I believe it means Apple's other hardware platforms (phones, tablets, smart TVs, VR headsets, smartwatches)
almoni•45m ago
Does this contribute to macOS's suitability for DAW applications or is that more the baked in low-latency audio drivers?
bigyabai•20m ago
CoreAudio probably deserves most of the credit, there. Similar ASIO-style solutions like JACK, DirectSound and now Pipewire hit the sub-30ms mark without any big scheduler tweaks.

Shifts in U.S. Social Media Use, 2020–2024: Decline, Fragmentation, Polarization (2025)

https://arxiv.org/abs/2510.25417
77•vinnyglennon•1h ago•50 comments

Vouch

https://github.com/mitchellh/vouch
518•chwtutha•20h ago•230 comments

Reverse Engineering the Prom for the SGI O2

https://mattst88.com/blog/2026/02/08/Reverse_Engineering_the_PROM_for_the_SGI_O2/
21•mattst88•1h ago•4 comments

More Mac malware from Google search

https://eclecticlight.co/2026/01/30/more-malware-from-google-search/
43•kristianp•2h ago•12 comments

Apple XNU: Clutch Scheduler

https://github.com/apple-oss-distributions/xnu/blob/main/doc/scheduler/sched_clutch_edge.md
60•tosh•2h ago•6 comments

Ask HN: What are you working on? (February 2026)

26•david927•3h ago•71 comments

Roundcube Webmail: SVG feImage bypasses image blocking to track email opens

https://nullcathedral.com/posts/2026-02-08-roundcube-svg-feimage-remote-image-bypass/
90•nullcathedral•5h ago•20 comments

Toma (YC W24) Is Hiring Founding Engineers

https://www.ycombinator.com/companies/toma/jobs/oONUnCf-founding-engineer-ai-products
1•anthonykrivonos•53m ago

The Little Bool of Doom (2025)

https://blog.svgames.pl/article/the-little-bool-of-doom
72•pocksuppet•5h ago•24 comments

A GTA modder has got the 1997 original working on modern PCs and Steam Deck

https://gtaforums.com/topic/986492-grand-theft-auto-ready2play-full-game-windows-version/
102•HelloUsername•2h ago•36 comments

Show HN: I created a Mars colony RPG based on Kim Stanley Robinson's Mars books

https://underhillgame.com/
113•ariaalam•6h ago•48 comments

Everything – Locate files and folders by name instantly

https://www.voidtools.com/
87•idw•2h ago•36 comments

Running Your Own As: BGP on FreeBSD with FRR, GRE Tunnels, and Policy Routing

https://blog.hofstede.it/running-your-own-as-bgp-on-freebsd-with-frr-gre-tunnels-and-policy-routing/
123•todsacerdoti•9h ago•47 comments

Exploiting signed bootloaders to circumvent UEFI Secure Boot

https://habr.com/en/articles/446238/
84•todsacerdoti•8h ago•50 comments

I put a real-time 3D shader on the Game Boy Color

https://blog.otterstack.com/posts/202512-gbshader/
223•adunk•7h ago•28 comments

Dave Farber has died

https://lists.nanog.org/archives/list/nanog@lists.nanog.org/thread/TSNPJVFH4DKLINIKSMRIIVNHDG5XKJCM/
197•vitplister•11h ago•30 comments

RFC 3092 – Etymology of "Foo" (2001)

https://datatracker.ietf.org/doc/html/rfc3092
111•ipnon•8h ago•28 comments

Credentials for Linux: Bringing Passkeys to the Linux Desktop

https://alfioemanuele.io/talks/2026/02/01/fosdem-2026-credentials-for-linux.html
50•alfie42•6h ago•35 comments

GitHub Agentic Workflows

https://github.github.io/gh-aw/
188•mooreds•9h ago•106 comments

Omega-3 is inversely related to risk of early-onset dementia

https://pubmed.ncbi.nlm.nih.gov/41506004/
213•brandonb•6h ago•126 comments

Bun v1.3.9

https://bun.com/blog/bun-v1.3.9
132•tosh•5h ago•32 comments

Curating a Show on My Ineffable Mother, Ursula K. Le Guin

https://hyperallergic.com/curating-a-show-on-my-ineffable-mother-ursula-k-le-guin/
150•bryanrasmussen•13h ago•52 comments

OpenClaw is changing my life

https://reorx.com/blog/openclaw-is-changing-my-life/
203•novoreorx•17h ago•341 comments

Ktkit: A Kotlin toolkit for building server applications with Ktor

https://github.com/smyrgeorge/ktkit
3•smyrgeorge•4d ago•0 comments

Billing can be bypassed using a combo of subagents with an agent definition

https://github.com/microsoft/vscode/issues/292452
176•napolux•6h ago•92 comments

Show HN: It took 4 years to sell my startup. I wrote a book about it

https://derekyan.com/ma-book/
180•zhyan7109•4d ago•48 comments

The first sodium-ion battery EV is a winter range monster

https://insideevs.com/news/786509/catl-changan-worlds-first-sodium-ion-battery-ev/
122•andrewjneumann•6h ago•129 comments

Let's compile Quake like it's 1997

https://fabiensanglard.net/compile_like_1997/index.html
124•birdculture•6h ago•44 comments

Why E cores make Apple silicon fast

https://eclecticlight.co/2026/02/08/last-week-on-my-mac-why-e-cores-make-apple-silicon-fast/
223•ingve•12h ago•214 comments

Reverse Engineering Raiders of the Lost Ark for the Atari 2600

https://github.com/joshuanwalker/Raiders2600
83•pacod•14h ago•3 comments