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Nvidia plows $2B into Synopsys to make GPUs a must-have for design, simulation

https://www.theregister.com/2025/12/01/nvidia_synopsys_2b/
1•PaulHoule•41s ago•0 comments

A Linux Credential Manager API

https://github.com/linux-credentials/credentialsd
1•jstyles•46s ago•0 comments

CRISPR Turns Goldenberry into a Big Farming Opportunity

https://scitechdaily.com/crispr-turns-a-little-known-fruit-into-a-big-farming-opportunity/
1•manidoraisamy•1m ago•0 comments

Keyport 717

https://newsletter.shifthappens.site/archive/new-in-the-collection-pt-1-keyport-717/
1•gregsadetsky•2m ago•0 comments

University of Oklahoma's statement regarding religious discrimination claims

https://twitter.com/uofoklahoma/status/2003209457195741653
1•jakesgates•6m ago•0 comments

A $309B Bet Fuels 24/7 Dollar Banking Without Borders

https://www.bloomberg.com/news/articles/2025-12-19/the-stablecoin-boom-fuels-24-7-dollar-banking-...
1•msolujic•6m ago•0 comments

Show HN: Lutris Gamepad UI

https://github.com/andrew-ld/lutris-gamepad-ui
1•andrew-ld•7m ago•0 comments

Show HN: Kapso – WhatsApp for developers

https://kapso.ai/
3•aamatte•9m ago•0 comments

Time Buddy: Time Tracking CLI for macOS

https://github.com/alen-z/time-buddy
1•alen-z•9m ago•0 comments

Social media encourages the worst of AI boosterism

https://www.technologyreview.com/2025/12/23/1130393/how-social-media-encourages-the-worst-of-ai-b...
4•jethronethro•10m ago•0 comments

Reversing the Technical Interview

https://aphyr.com/posts/340-reversing-the-technical-interview
1•busymom0•10m ago•0 comments

EmissãO de NFSe PadrãO Nacional Com Laravel (Exemplo)

https://github.com/TiagoSilvaPereira/laravel-nfse
1•coderff•10m ago•0 comments

Fiddler has show cancelled over Google AI-generated misinformation

https://www.theglobeandmail.com/culture/article-ashley-macisaac-show-cancelled-google-ai-misinfor...
4•jsheard•10m ago•0 comments

Readers Prefer Outputs of AI Trained on Books over Expert Human Writers

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5606570
1•admp•11m ago•0 comments

Free 24hr IPTV Trial

1•removebefore•12m ago•0 comments

Nvidia Puts 100-Hour Monthly Limit on All GeForce Now Subscriptions

https://www.techpowerup.com/344359/nvidia-puts-100-hour-monthly-limit-on-all-geforce-now-subscrip...
2•speckx•13m ago•0 comments

Show HN: AudioGhost AI – Run Meta's Sam-Audio on Consumer GPUs (4GB-6GB VRAM)

https://github.com/0x0funky/audioghost-ai
2•0x0funky•13m ago•1 comments

Modified tau thwarts aggregation in neurodegenerative disease

https://medicalxpress.com/news/2025-12-tau-thwarts-aggregation-neurodegenerative-disease.html
2•bikenaga•16m ago•1 comments

SEO and the Art of Testicular Catastrophe

https://wskpf.com/notes/seo-testicular-catastrophe
2•amosWeiskopf•16m ago•0 comments

Help My c64 caught on fire

https://c0de517e.com/026_c64fire.htm
3•ibobev•17m ago•0 comments

Light therapy can help you avoid seasonal affective disorder

https://www.health.harvard.edu/newsletter_article/shining-a-light-on-winter-depression
2•manidoraisamy•17m ago•0 comments

Show HN: ScanOS – normalizing visual inputs into persistent LLM memory

2•JohannesGlaser•17m ago•0 comments

I Fixed My App Taking 5 Minutes to Start

https://asawicki.info/news_1796_how_i_fixed_my_app_taking_5_minutes_to_start
3•ibobev•17m ago•0 comments

Improving Direct Lighting Material Occlusion

https://irradiance.ca/posts/microshadowing-part1/
2•ibobev•17m ago•0 comments

T-800: 6 foot tall humanoid combat robot [video]

https://www.youtube.com/watch?v=J5L3Y-Qtdaw
2•AndrewKemendo•18m ago•0 comments

NASA, Boeing Test How to Improve Performance of Longer, Narrower Aircraft Wings

https://www.nasa.gov/aeronautics/nasa-boeing-test-aircraft-wings/
2•gnabgib•18m ago•0 comments

Nature Is Laughing at the AI Build Out

https://markmaunder.com/2025/nature-is-laughing-at-the-ai-build-out/
4•mmaunder•19m ago•0 comments

"Giga" Satellites

https://arstechnica.com/science/2025/12/investors-commit-quarter-billion-dollars-to-startup-desig...
3•worik•19m ago•0 comments

The showers and baths keeping data centre tech cool

https://www.bbc.com/news/articles/cp8zd176516o
4•devonnull•20m ago•0 comments

Lie-to-Children

https://en.wikipedia.org/wiki/Lie-to-children
4•thunderbong•21m ago•0 comments
Open in hackernews

Meta is using the Linux scheduler designed for Valve's Steam Deck on its servers

https://www.phoronix.com/news/Meta-SCX-LAVD-Steam-Deck-Server
226•yellow_lead•2h ago

Comments

999900000999•2h ago
That's the magic of open source. Valve can't say ohh noes you need a deluxe enterprise license.
kstrauser•1h ago
I'm more surprised that the scheduler made for a handheld gaming console is also demonstrably good for Facebook's servers.
bigyabai•1h ago
I mean, part of it is that Linux's default scheduler is braindead by modern standards: https://en.wikipedia.org/wiki/Completely_Fair_Scheduler
accelbred•1h ago
CFS was replaced by EEVDF, no?
phdelightful•1h ago
Parent's article says

> Starting from version 6.6 of the Linux kernel, [CFS] was replaced by the EEVDF scheduler.[citation needed]

0x1ch•1h ago
I vaguely remember reading when this occurred. It was very recent no? Last few years for sure.

> The Linux kernel began transitioning to EEVDF in version 6.6 (as a new option in 2024), moving away from the earlier Completely Fair Scheduler (CFS) in favor of a version of EEVDF proposed by Peter Zijlstra in 2023 [2-4]. More information regarding CFS can be found in CFS Scheduler.

3eb7988a1663•1h ago
Part of that is the assumption that Amazon/Meta/Google all have dedicated engineers who should be doing nothing but tuning performance for 0.0001% efficiency gains. At the scale of millions of servers, those tweaks add up to real dollar savings, and I suspect little of how they run is stock.
Anon1096•55m ago
This is really just an example of survivorship bias and the power of Valve's good brand value. Big tech does in fact employ plenty of people working on the kernel to make 0.1% efficiency gains (for the reason you state), it's just not posted on HN. Someone would have found this eventually if not Valve.

And the people at FB who worked to integrate Valve's work into the backend and test it and measure the gains are the same people who go looking for these kernel perf improvements all day.

giantrobot•27m ago
Latency-aware scheduling is important in a lot of domains. Getting video frames or controller input delivered on a deadline is a similar problem to getting voice or video packets delivered on a deadline. Meanwhile housecleaning processes like log rotation can sort of happen whenever.
jorvi•1h ago
I mean.. many SteamOS flavors (and Linux distros in general have) have switched to Meta's Kyber IO scheduler to fix microstutter issues.. the knife cuts both ways :)
bronson•1h ago
Kyber is an I/O scheduler. Nothing to do with this article.
Brian_K_White•1h ago
The comment was perfectly valid and topical and applicable. It doesn't matter what kind of improvement Meta supplied that everyone else took up. It could have been better cache invalidation or better usb mouse support.
senfiaj•1h ago
In this case yes, but on the other hand Red Hat won't publish the RHEL code unless you have the binaries. The GPLv2 license requires you to provide the source code only if you provide the compiled binaries. In theory Meta can apply its own proprietary patches on Linux and don't publish the source code if it runs that patched Linux on its servers only.
cherryteastain•59m ago
Can't anyone get a RHEL instance on their favorite cloud, dnf install whatever packages they want sources of, email Redhat to demand the sources, and shut down the instance?
dfedbeef•40m ago
RHEL specifically makes it really annoying to see the source. You get a web view.
OsrsNeedsf2P•15m ago
Honestly just hearing this makes me want to get all their binaries, request the code, scrape it with OCR and upload it somewhere
mikkupikku•2h ago
> SCX-LAVD has been worked on by Linux consulting firm Igalia under contract for Valve

It seems like every time I read about this kind of stuff, it's being done by contractors. I think Proton is similar. Of course that makes it no less awesome, but it makes me wonder about the contractor to employee ratio at Valve. Do they pretty much stick to Steam/game development and contract out most of the rest?

jvanderbot•1h ago
They probably needed some point expertise on this one, as they build out their teams.
treyd•1h ago
They seem to be doing it through Igalia, which is a company based on specialized consulting for the Linux ecosystem, as opposed to hiring individual contractors. Your point still stands, but from my perspective this arrangement makes a lot of sense while the Igalia employees have better job security than they would as individual contractors.
tapoxi•1h ago
Valve is actually extremely small, I've heard estimates at around 350-400 people.

They're also a flat organization, with all the good and bad that brings, so scaling with contractors is easier than bringing on employees that might want to work on something else instead.

ZeroCool2u•1h ago
Igalia is a bit unique as it serves as a single corporate entity for organizing a lot of sponsored work on the Linux kernel and open source projects. You'll notice in their blog posts they have collaborations with a number of other large companies seeking to sponsor very specific development work. For example, Google works with them a lot. I think it really just simplifies a lot of logistics for paying folks to do this kind of work, plus the Igalia employees can get shared efficiency's and savings for things like benefits etc.
everfrustrated•1h ago
Value is known to keep their employee count as low as possible. I would guess anything that can reasonably be contracted out is.

That said, something like this which is a fixed project, highly technical and requires a lot of domain expertise would make sense for _anybody_ to contract out.

mindcrash•1h ago
Proton is mainly a co-effort between in-house developers at Valve (with support on specific parts from contractors like Igalia), developers at CodeWeavers and the wider community.

For contextual, super specific, super specialized work (e.g. SCX-LAVD, the DirectX-to-Vulkan and OpenGL-to-Vulkan translation layers in Proton, and most of the graphics driver work required to make games run on the upcoming ARM based Steam Frame) they like to subcontract work to orgs like Igalia but that's about it.

wildzzz•1h ago
It would be a large effort to stand up a department that solely focuses on Linux development just like it would be to shift game developers to writing Linux code. Much easier to just pay a company to do the hard stuff for you. I'm sure the steam deck hardware was the same, Valve did the overall design and requirements but another company did the actual hardware development.
izacus•1h ago
This is how "Company funding OSS" looks like in real life.

There have been demands to do that more on HN lately. This is how it looks like when it happens - a company paying for OSS development.

chucky_z•1h ago
This isn’t explicitly called out in any of the other comments in my opinion so I’ll state this. Valve as a company is incredibly focused internally on its business. Its business is games, game hardware, and game delivery. For anything outside of that purview instead of trying to build a huge internal team they contract out. I’m genuinely curious why other companies don’t do this style more often because it seems incredibly cost effective. They hire top level contractors to do top tier work on hyper specific areas and everyone benefits. I think this kind of work is why Valve gets a free pass to do some real heinous shit (all the gambling stuff) and maintain incredible good will. They’re a true “take the good with the bad” kind of company. I certainly don’t condone all the bad they’ve put out, and I also have to recognize all the good they’ve done at the same time.

Back to the root point. Small company focused on core business competencies, extremely effective at contracting non-core business functions. I wish more businesses functioned this way.

smotched•1h ago
Whats the bad practices valve is doing in gambling?
mewse-hn•1h ago
Loot box style underage gambling in their live service games - TF2 hats, counterstrike skins, "trading cards", etc etc
msh•40m ago
Lootboxes comes to mind.
crtasm•40m ago
Their games and systems tie into huge gambling operations on 3rd party sites

If you have 30mins for a video I recommend People Make Games' documentary on it https://www.youtube.com/watch?v=eMmNy11Mn7g

trinsic2•18m ago
Yeah, im sorry. Valve is the last company people should be focusing for this type of behavior. All the other AAA game companies use these mechanics to deliberate manipulate players. IMHO valve doesn't use predatory practices to keep this stuff going.
tayo42•1h ago
I feel like I rarely see contacting out work go well. This seems like an exception
magicalhippo•48m ago
If you have competent people on both sides who care, I don't see why it wouldn't work.

The problem seems, at least from a distance, to be that bosses treat it as a fire-and-forget solution.

We haven't had any software done by oursiders yet, but we have hired consultants to help us on specifics, like changing our infra and help move local servers to the cloud. They've been very effective and helped us a lot.

We had talks though so we found someone who we could trust had the knowledge, and we were knowledgeable enough ourselves that we could determine that. We then followed up closely.

tayo42•39m ago
I think your first 2 sentances are pretty common issues though.
stackskipton•7m ago
Most companies that hiring a ton of contractors are doing it for business/financial reporting reasons. Contractors don't show up as employees so investors don't see employee count rise so metric of "Revenue/Employee" ratio does not get dragged down and contractors can be cut immediately with no further on expenses. Laid off employees take about quarter to be truly shed from the books between severance, vacation payouts and unemployment insurance.
abnercoimbre•40m ago
Nope. Plenty of top-tier contractors work quietly with their clientele and let the companies take the credit (so long as they reference the contractor to others, keeping the gravy train going.)

If you don't see it happening, the game is being played as intended.

TulliusCicero•28m ago
Valve contracts out to actually competent people and companies rather than giant bodycount consulting firms.
OkayPhysicist•20m ago
The .308 footgun with software contracting stems from a misunderstanding of what we pay software developers for. The model under which contracting seems like the right move is "we pay software developers because we want a unit of software", like how you pay a carpenter to build you some custom cabinets. If the union of "things you have a very particular opinion about, and can specify coherently" and "things you don't care about" completely cover a project, contracting works great for that purpose.

But most of the time you don't want "a unit of software", you want some amorphous blob of product and business wants and needs, continuously changing at the whims of business, businessmen, and customers. In this context, sure, you're paying your developers to solve problems, but moreover you're paying them to store the institutional knowledge of how your particular system is built. Code is much easier to write than to read, because writing code involves applying a mental model that fits your understanding of the world onto the application, whereas reading code requires you to try and recreate someone else's alien mental model. In the situation of in-house products and business automation, at some point your senior developers become more valuable for their understanding of your codebase than their code output productivity.

The context of "I want this particular thing fixed in a popular open source codebase that there are existing people with expertise in", contracting makes a ton of sense, because you aren't the sole buyer of that expertise.

Brian_K_White•1h ago
I don't know what you're trying to suggest or question. If there is a question here, what is it exactly, and why is that question interesting? Do they employ contractors? Yes. Why was that a question?
mikkupikku•21m ago
Wut.
koverstreet•22m ago
Speaking for myself, Valve has been great to work with - chill, and they bring real technical focus. It's still engineers running the show there, and they're good at what they do. A real breath of fresh air from much of the tech world.
Fiveplus•1h ago
Valve is practically singlehandedly dragging the Linux ecosystem forward in areas that nobody else wanted to touch.

They needed Windows games to run on Linux so we got massive Proton/Wine advancements. They needed better display output for the deck and we got HDR and VRR support in wayland. They also needed smoother frame pacing and we got a scheduler that Zuck is now using to run data centers.

Its funny to think that Meta's server efficiency is being improved because Valve paid Igalia to make Elden Ring stutter less on a portable Linux PC. This is the best kind of open source trickledown.

MarleTangible•1h ago
Over time they're going to touch things that people were waiting for Microsoft to do for years. I don't have an example in mind at the moment, but it's a lot better to make the changes yourself than wait for OS or console manufacturer to take action.
benoau•1h ago
"It just works" sleep and hibernate.

"Slide left or right" CPU and GPU underclocking.

pmontra•1h ago
Sleep and hibernate don't just work on Windows unless Microsoft work with laptop and boards manufacturers to make Windows play nice with all those drivers. It's inevitable that it's hit and miss on any other OS that manufacturers don't care much about. Apple does nearly everything inside their walls, that's why it just works.
Insanity•1h ago
“It just works” sadly isn’t true across the Apple Ecosystem anymore.

Liquid Glass ruined multitasking UX on my iPad. :(

Also my macbook (m4 pro) has random freezes where finder becomes entirely unresponsive. Not sure yet why this happens but thankfully it’s pretty rare.

pbh101•40m ago
Regardless of how it must be implemented, if this is a desirable feature then this explanation isn’t an absolution of Linux but rather an indictment: its development model cannot consistently provide this product feature.

(And same for Windows to the degree it is more inconsistent on Windows than Mac)

spauldo•16m ago
It's not the development model at fault here. It's the simple fact that Windows makes up nearly the entire user base for PCs. Companies make sure their hardware works with Windows, but many don't bother with Linux because it's such a tiny percentage of their sales.
mschuster91•10m ago
> Regardless of how it must be implemented, if this is a desirable feature then this explanation isn’t an absolution of Linux but rather an indictment: its development model cannot consistently provide this product feature.

The problem is: the specifications of ACPI are complex, Windows' behavior tends to be pretty much trash and most hardware tends to be trash too (AMD GPUs for example were infamous for not being resettable for years [1]), which means that BIOSes have to work around quirks on both the hardware and software. Usually, as soon as it is reasonably working with Windows (for a varying definition of "reasonably", that is), the ACPI code is shipped and that's it.

Unfortunately, Linux follows standards (or at least, it tries to) and cannot fully emulate the numerous Windows quirks... and on top of that, GPUs tend to be hot piles of dung requiring proprietary blobs that make life even worse.

[1] https://www.nicksherlock.com/2020/11/working-around-the-amd-...

dijit•58m ago
“it just works” sleep was working, at least on basically every laptop I had the last 10 years…

until the new s2idle stuff that Microsoft and Intel have foisted on the world (to update your laptop while sleeping… I guess?)

Krssst•26m ago
On my Framework 13 AMD : Sleep just works on Fedora. Sleep is unreliable on Windows; if my fans are all running at full speed while running a game and I close the lid to begin sleeping, it will start sleeping and eventually wake up with all fans blaring.
seba_dos1•19m ago
Both of these have worked fine for the last 15 years or so on all my laptops.
asveikau•1h ago
I was at Microsoft during the Windows 8 cycle. I remember hearing about a kernel feature I found interesting. Then I found linux had it for a few years at the time.

I think the reality is that Linux is ahead on a lot of kernel stuff. More experimentation is happening.

dijit•59m ago
yeah, but you have IO Completion Ports…

IO_Uring is still a pale imitation :(

asveikau•57m ago
io_uring does more than IOCP. It's more like an asynchronous syscall interface that avoids the overhead of directly trapping into the kernel. This avoids some overheads IOCP cannot. I'm rusty on the details but the NT kernel has since introduced an imitation: https://learn.microsoft.com/en-us/windows/win32/api/ioringap...
loeg•54m ago
IOCP is great and was ahead of Linux for decades, but io_uring is also great. It's a different model, not a poor copy.
torginus•5m ago
I think they are a bit different - in the Windows kernel, all IO is asynchronous on the driver level, on Linux, it's not.

io_uring didn't change that, it only got rid of the syscall overhead (which is still present on Windows), so in actuality they are two different technical solutions that affect different levels of the stack.

In practice, Linux I/O is much faster, owing in part to the fact that Windows file I/O requires locking the file, while Linux does not.

7bit•53m ago
And behind on a lot of stuff. The Microsoft's ACLs are nothing short of one of the best designed permission systems there are.

On the surface, they are as simple as Linux UOG/rwx stuff if you want it to be, but you can really, REALLY dive into the technology and apply super specific permissions.

trueismywork•42m ago
You have ACLs on linux too
Arainach•25m ago
ACLs in Linux were tacked on later; not everything supports them properly. They were built into Windows NT from the start and are used consistently across kernel and userspace, making them far more useful in practice.

Also, as far as I know Linux doesn't support DENY ACLs, which Windows does.

bbkane•33m ago
Do you have any favorite docs or blogs on these? Reading about one of the best designed permissions systems sounds like a fun way to spend an afternoon ;)
torginus•14m ago
And they work on everything. You can have a mutex, a window handle or a process protected by ACL.
dabockster•9m ago
Oh yeah for sure. Linux is amazing in a computer science sense, but it still can't beat Windows' vertically integrated registry/GPO based permissions system. Group/Local Policy especially, since it's effectively a zero coding required system.

Ubuntu just recently got a way to automate its installer (recently being during covid). I think you can do the same on RHEL too. But that's largely it on Linux right now. If you need to admin 10,000+ computers, Windows is still the king.

wmf•41m ago
I was surprised to hear that Windows just added native NVMe which Linux has had for many years. I wonder if Azure has been paying the SCSI emulation tax this whole time.
athoneycutt•30m ago
It was always wild to me that their installer was just not able to detect an NVMe drive out of the box in certain situations. I saw it a few times with customers when I was doing support for a Linux company.
stackskipton•15m ago
Probably, most of stuff you see in Windows Server these days is backported from Azure improvements.
duped•1h ago
> I don't have an example in mind at the moment

I do, MIDI 2.0. It's not because they're not doing it, just that they're doing it at a glacial pace compared to everyone else. They have reasons for this (a complete rewrite of the windows media services APIs and internals) but it's taken years and delays to do something that shipped on Linux over two years ago and on Apple more like 5 (although there were some protocol changes over that time).

guidopallemans•52m ago
Surely a gaming handheld counts
packetlost•11m ago
Kernel level anti-cheat with trusted execution / signed kernels is probably a reasonable new frontier for online games, but it requires a certain level of adoption from game makers.
dabockster•5m ago
This is a part of Secure Boot, which Linux people have raged against for a long time. Mostly because the main key signing authority was Microsoft.

But here's my rub: no one else bothered to step up to be a key signer. Everyone has instead whined for 15 years and told people to disable Secure Boot and the loads of trusted compute tech that depends on it, instead of actually building and running the necessary infra for everyone to have a Secure Boot authority outside of big tech. Not even Red Hat/IBM even though they have the infra to do it.

Secure Boot and signed kernels are proven tech. But the Linux world absolutely needs to pull their heads out of their butts on this.

mstank•9m ago
Valve... please do Github Actions next
xmprt•7m ago
I wonder what Valve uses for source control (no pun intended) internally.
bilekas•1h ago
I do agree. It's also thanks to gaming that the GPU industry was in such a good state to be consumed by AI now. Game development used to always be the frontier of software optimisation techniques and ingenious approaches to the constraints.
ls612•1h ago
Gaben does nothing: Wins

Gaben does something: Wins Harder

7bit•58m ago
He's the person I want to meet the least from all the people in the world, he is that much of my hero.
captn3m0•54m ago
My favourite is the Windows futex primitives being shipped on Linux: https://lwn.net/Articles/961884/
delusional•12m ago
> Valve is practically singlehandedly dragging the Linux ecosystem forward in areas that nobody else wanted to touch.

I'm loving what valve has been doing, and their willingness to shove money into projects that have long been under invested in, BUT. Please don't forget all the volunteers that have developed these systems for years before valve decided to step up. All of this is only possible because a ton of different people spent decades slowly building a project, that for most of it's lifetime seemed like a dead end idea.

Wine as a software package is nothing short of miraculous. It has been monumentally expensive to build, but is provided to everyone to freely use as they wish.

Nobody, and I do mean NOBODY would have funded a project that spent 20 years struggling to run office and photoshop. Valve took it across the finish line into commercially useful project, but they could not have done that without the decade+ of work before that.

baq•9m ago
I low key hope the current DDR5 prices push them to drag the Linux memory and swap management into the 21st century, too, because hard locking on low memory got old a while ago
loeg•1h ago
Maybe better to go straight to the source and bypass Phoronix blogspam: https://www.youtube.com/watch?v=KFItEHbFEwg
redleader55•58m ago
It's worth mentioning that sched_ext was developed at Meta. The schedulers are developed by several companies who collaborate to develop them, not just Meta or Valve or Italia and the development is done in a shared GitHub repo - https://github.com/sched-ext/scx.
tayo42•52m ago
Interesting to see server workloads take ideas from other areas. I saw recently that some of the k8s specific os do their updates like android devices
binary132•52m ago
I'm struggling to understand what workloads Meta might be running that are _this_ latency-critical.
Pr0Ger•44m ago
It's definitely for ads auctions
tayo42•41m ago
If you have 50,000 servers for your service, and you can reduce that by 1 percent, you save 50 servers. Multiply that by maybe $8k per server and you have saved $400k,you just paid for your self for a year. With meta the numbers are probably a bit bigger.
stuxnet79•40m ago
Meta is a humongous company. Any kind of latency has to have a business impact.
commandersaki•19m ago
According to the video linked somewhere in this thread indicates WhatsApp Erlang workers that want sub-ms latency.
tra3•41m ago
I'm curious how this came to be:

> Meta has found that the scheduler can actually adapt and work very well on the hyperscaler's large servers.

I'm not at all in the know about this, so it would not even occur to me to test it. Is it the case that if you're optimizing Linux performance you'd just try whatever is available?

laweijfmvo•33m ago
almost certainly bottom-up: some eng somewhere read about it, ran a test, saw positive results, and it bubbles up from there. this is still how lots of cool things happen at big companies like Meta.