284 pointsby yellow_lead3 hours ago9 comments
  • Fiveplus2 hours 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.

    • MarleTangible2 hours 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.
      • asveikau2 hours 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.

        • wmfan hour 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.
          • stackskiptonan hour ago
            Probably, most of stuff you see in Windows Server these days is backported from Azure improvements.
          • athoneycuttan hour 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.
        • b00ty4breakfast8 minutes ago
          when the hood is open for anyone to tinker, lots of little weirdos get to indulge their ideas. Sometimes those are ideas are even good!
        • 7bitan hour 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.

          • torginusan hour ago
            And they work on everything. You can have a mutex, a window handle or a process protected by ACL.
          • dabocksteran hour 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.

            • Elv1321 minutes ago
              Debian (and thus Ubuntu) has full support for automated installs since the 90's. It's built into `dpkg` since forever. That include saving or generating answer to install time questions, PXE deployment, ghosting, CloudInit and everything. Then stuff like Ansible/Puppet have been automating deployment for a long time too. They might have added yet another way of doing it, but full stack deployment automation has been there for as long as Ubuntu existed.
            • benterix3 minutes ago
              > 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.

              What?! I was doing kickstart on Red Hat (want called Enterprise Linux back then) at my job 25 years ago, I believe we were using floppies for that.

            • LeSaucy27 minutes ago
              Still the king but developing/testing/debugging group policy issues is a miserable experience.
              • 7bit12 minutes ago
                I always found it straight forward. Never had an issue and I've implemented my fair share on thousands on devices and servers.
            • esseph31 minutes ago
              > 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.

              1. cloud-init support was in RHEL 7.2 which released November 19, 2015. A decade ago.

              2. Checking on Ubuntu, it looks like it was supported in Ubuntu 18.04 LTS in April 2018.

              3. For admining tens of thousands of servers, if you're in the RHEL ecosystem you use Satellite and it's ansible integration. That's also been going on for... about a decade. You don't need much integration though other than a host list of names and IPs.

              There are a lot of people on this list handling tens of thousands or hundreds of thousands of linux servers a day (probably a few in the millions).

          • bbkanean hour 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 ;)
          • trueismyworkan hour ago
            You have ACLs on linux too
            • Arainachan hour 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.

              • onraglanroad37 minutes ago
                Yes it does.
                • 11223316 minutes ago
                  since when?
                  • onraglanroad7 minutes ago
                    Since some of us could be bothered reading docs. Give it a try and see how it works out for you.
            • an hour ago
              undefined
            • 11223317 minutes ago
              Haha, sure. Sorry, it's not you, it's the ACLs (and me nerves). Have you tried configuring NFSv4 ACLs on Linux? Because kernel devs are against supporting them, you either use some other OS or have all sorts of "fun". Also, not to be confused with all sorts of LSM based ACLs... Linux has ACLs in the most ridiculous way imaginable...
            • 7bit14 minutes ago
              Not by default. Not as extensive as in Windows. What's your point?
        • dijit2 hours ago
          yeah, but you have IO Completion Ports…

          IO_Uring is still a pale imitation :(

          • loeg2 hours 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.
            • torginus41 minutes 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.

          • asveikau2 hours 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...
      • 6r1712 minutes ago
        Tbh i'm starting to think that I do not see microsoft being able to keep it's position in the OS market ; with steam doing all the hard work and having a great market to play with ; the vast distributions to choose from, and most importantly how easy it has become to create an operating system from scratch - they not only lost all possible appeal, they seem stuck on really weird fetichism with their taskbar and just didn't provide me any kind of reason to be excited about windows.

        Their research department rocks however so it's not a full bash on Microsoft at all - i just feel like they are focusing on other way more interesting stuff

      • benoau2 hours ago
        "It just works" sleep and hibernate.

        "Slide left or right" CPU and GPU underclocking.

        • dijit2 hours 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?)

          • dabockster37 minutes ago
            From what I read, it was a lot of the prosumer/gamer brands (MSI, Gigabyte, ASUS) implementing their part of sleep/hibernate badly on their motherboards. Which honestly lines up with my experience with them and other chips they use (in my case, USB controllers). Lots of RGB and maybe overclocking tech, but the cheapest power management and connectivity chips they can get (arguably what usually gets used the most by people).
        • pmontra2 hours 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.
          • Insanity2 hours 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.

          • pbh101an hour 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)

            • spauldoan hour 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.
              • tharkun__35 minutes ago
                Except when it doesn't. I can't upgrade my Intel graphics drivers to any newer version than what came with the laptop or else my laptop will silently die while asleep. Internet is full of similar reports from other laptop and graphics manufacturers and none have any solutions that work. The only thing that reliably worked is to restore the original driver version. Doesn't matter if I use the WHQL version(s) or something else.
            • mschuster91an hour 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-...

        • Krssstan hour 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.
        • devnullbrain23 minutes ago
          I don't understand this comment in this context. Both of these features work on my Steam Deck. Neither of them have worked on any Windows laptop my employers have foisted upon me.
        • seba_dos1an hour ago
          Both of these have worked fine for the last 15 years or so on all my laptops.
      • packetlostan hour 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.
        • dabockster41 minutes 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.

          • ndriscoll25 minutes ago
            The goals of the people mandating Secure Boot are completely opposed to the goals of people who want to decide what software they run on the computer they own. Literally the entire point of remote attestation is to take that choice away from you (e.g. because they don't want you to choose to run cheating software). It's not a matter of "no one stepped up"; it's that Epic Games isn't going to trust my secure boot key for my kernel I built.

            The only thing Secure Boot provides is the ability for someone else to measure what I'm running and therefore the ability to tell me what I can run on the device I own (mostly likely leading to them demanding I run malware like like the adware/spyware bundled into Windows). I don't have a maid to protect against; such attacks are a completely non-serious argument for most people.

            • cogman10a few seconds ago
              And all this came from big game makers turning their games into casinos. The reason they want everything locked down is money is on the line.
          • codeflo27 minutes ago
            There are plenty of locked down computers in my life already. I don't need or want another system that only runs crap signed by someone, and it doesn't really matter whether that someone is Microsoft or Redhat. A computer is truly "general purpose" only if it will run exactly the executable code I choose to place there, and Secure Boot is designed to prevent that.
          • mhitza27 minutes ago
            I don't know overall in the ecosystem but Fedora has been working for me with secureboot enabled for a long time.

            Having the option to disable secureboot, was probably due to backlash at the time and antitrust concerns.

            Aside from providing protection "evil maid" attacks (right?) secureboot is in the interest of software companies. Just like platform "integrity" checks.

          • packetlost24 minutes ago
            I'm pro secure boot fwiw and have had it working on my of my Linux systems for awhile.
          • esseph12 minutes ago
            I'm not giving game ownership of my kernel, that's fucking insane. That will lead to nothing but other companies using the same tech to enforce other things, like the software you can run on your self.

            No thanks.

      • mstankan hour ago
        Valve... please do Github Actions next
      • guidopallemansan hour ago
        Surely a gaming handheld counts
      • duped2 hours 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).

      • 2 hours ago
        undefined
    • bilekas2 hours 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.
    • irusensei22 minutes ago
      If I'm not mistaken this has been greatly facilitated by the recent bpf based extension mechanism that allows developers to go crazy on creating schedulers and other functionality through some protected virtual machine mechanism provided by the kernel.
    • baqan hour 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
    • dabockster36 minutes ago
      > This is the best kind of open source trickledown.

      We shouldn't be depending on trickledown anything. It's nice to see Valve contributing back, but we all need to remember that they can totally evaporate/vanish behind proprietary licensing at any time.

      • dymk13 minutes ago
        They have to abide by the Wine license, which is basically GPL, so unless they’re going to make their own from scratch, they can’t make the bread and butter of their compat layer proprietary
      • stavros19 minutes ago
        How? It's GPL.
    • captn3m0an hour ago
      My favourite is the Windows futex primitives being shipped on Linux: https://lwn.net/Articles/961884/
    • delusionalan hour 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.

      • aeyes3 minutes ago
        Long before Valve there was CrossOver which sold a polished version of Wine making a lot of Windows only enterprise software work on Linux.

        I'm sure there have been more commercial contributors to Wine other than Valve and CodeWeavers.

    • ls6122 hours ago
      Gaben does nothing: Wins

      Gaben does something: Wins Harder

      • 7bit2 hours 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.
  • mikkupikku3 hours 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?

    • ZeroCool2u2 hours 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.
    • chucky_z2 hours 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.

      • smotched2 hours ago
        Whats the bad practices valve is doing in gambling?
        • mewse-hn2 hours ago
          Loot box style underage gambling in their live service games - TF2 hats, counterstrike skins, "trading cards", etc etc
        • crtasman hour 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

          • trinsic2an hour 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.
            • heywoods36 minutes ago
              Just because they weren’t the first mover into predatory practices doesn’t mean they can’t say no to said practices. Each actor has agency to make their own operating and business decisions. Is Valve the worst of the lot? Absolutely not. But it was still their choice to implement.
              • inexcf3 minutes ago
                What makes Valve special is that they were the first mover on those practices like lootboxes, gamepasses... but they never pushed it as far as the competition where it became predatory.
          • an hour ago
            undefined
        • mshan hour ago
          Lootboxes comes to mind.
      • tayo422 hours ago
        I feel like I rarely see contacting out work go well. This seems like an exception
        • OkayPhysicistan hour 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.

        • magicalhippoan hour 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.

          • stackskipton43 minutes 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.
          • tayo42an hour ago
            I think your first 2 sentances are pretty common issues though.
        • to11mtm33 minutes ago
          I've seen both good and bad contractors in multiple industries.

          When I worked in the HFC/Fiber plant design industry, the simple act of "Don't use the same boilerplate MSA for every type of vendor" and being more specific about project requirements in the RFP makes it very clear what is expected, and suddenly we'd get better bids, and would carefully review the bids to make sure that the response indicated they understood the work.

          We also had our own 'internal' cost estimates (i.e. if we had the in house capacity, how long would it take to do and how much would it cost) which made it clear when a vendor was in over their head under-bidding just to get the work, which was never a good thing.

          And, I've seen that done in the software industry as well, and it worked.

          That said, the main 'extra' challenge in IT is that key is that many of the good players aren't going to be the ones beating down your door like the big 4 or a WITCH consultancy will.

          But really at the end of the day, the problem is what often happens is that business-people who don't really know (or necessarily -care-) about specifics enough unfortunately are the people picking things like vendors.

          And worse, sometimes they're the ones writing the spec and not letting engineers review it. [0]

          [0] - This once led to an off-shore body shop getting a requirement along the lines of 'the stored procedures and SQL called should be configurable' and sure enough the web.config had ALL the SQL and stored procedures as XML elements, loaded from config just before the DB call, thing was a bitch to debug and their testing alone wreaked havoc on our dev DB.

        • TulliusCiceroan hour ago
          Valve contracts out to actually competent people and companies rather than giant bodycount consulting firms.
        • WD-4215 minutes ago
          Igalia isn’t your typical contractor. It’s made up of competent developers that actually want to be there and care to see open source succeed. Completely different ball game.
        • abnercoimbrean hour 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.

    • tapoxi2 hours 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.

    • mindcrash2 hours 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.

    • everfrustrated2 hours ago
      Valve 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.

    • treyd2 hours 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.
    • izacus2 hours 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.

    • bogwog34 minutes ago
      Valve has a weird obsession with maximizing their profit-per-employee ratio. There are stories from ex-employees out on the web about how this creates a hostile environment, and perverse incentives to sabotage those below you to protect your own job.

      I don't remember all the details, but it doesn't seem like a great place to work, at least based on the horror stories I've read.

      Valve does a lot of awesome things, but they also do a lot of shitty things, and I think their productivity is abysmal based on what you'd expect from a company with their market share. They have very successful products, but it's obvious that basically all of their income comes from rent-seeking from developers who want to (well, need to) publish on Steam.

    • wildzzz2 hours 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.
    • koverstreetan hour 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.
    • Brian_K_White2 hours 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?
    • jvanderbot3 hours ago
      They probably needed some point expertise on this one, as they build out their teams.
  • redleader552 hours 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.
  • 9999000009993 hours ago
    That's the magic of open source. Valve can't say ohh noes you need a deluxe enterprise license.
    • senfiaj2 hours 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.
      • cherryteastain2 hours 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?
        • dfedbeefan hour ago
          RHEL specifically makes it really annoying to see the source. You get a web view.
          • Aperocky19 minutes ago
            Don't forget RH is owned by IBM.
          • OsrsNeedsf2Pan hour ago
            Honestly just hearing this makes me want to get all their binaries, request the code, scrape it with OCR and upload it somewhere
    • kstrauser3 hours ago
      I'm more surprised that the scheduler made for a handheld gaming console is also demonstrably good for Facebook's servers.
      • giantrobotan hour 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.
      • bigyabai2 hours 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
        • 3eb7988a16632 hours 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.
          • Anon10962 hours 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.

        • accelbred2 hours ago
          CFS was replaced by EEVDF, no?
          • 0x1ch2 hours 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.

          • phdelightful2 hours ago
            Parent's article says

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

    • jorvi3 hours 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 :)
      • bronson2 hours ago
        Kyber is an I/O scheduler. Nothing to do with this article.
        • Brian_K_White2 hours 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.
  • loeg2 hours ago
    Maybe better to go straight to the source and bypass Phoronix blogspam: https://www.youtube.com/watch?v=KFItEHbFEwg
    • fph7 minutes ago
      Life becomes a lot better the moment you stop considering Youtube videos valid primary sources.
    • hobobaggins16 minutes ago
      Phoronix is blogspam?!
  • tra3an hour 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?

    • laweijfmvoan hour 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.
  • binary132an hour ago
    I'm struggling to understand what workloads Meta might be running that are _this_ latency-critical.
    • commandersakian hour ago
      According to the video linked somewhere in this thread indicates WhatsApp Erlang workers that want sub-ms latency.
    • dabockster32 minutes ago
      It's Meta. They always push to be that fast on paper, even when it's costly to do and doesn't really need it.
    • Pr0Geran hour ago
      It's definitely for ads auctions
    • stuxnet79an hour ago
      Meta is a humongous company. Any kind of latency has to have a business impact.
    • tayo42an hour 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.
      • pixelbeat__20 minutes ago
        LOL (I used to work for Meta, so appreciate the facetious understatement)
  • tayo42an hour 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
    • esseph7 minutes ago
      You mean immutable?
  • alecco2 hours ago
    [flagged]
    • hoppyhoppy22 hours ago
      Generated comments are not allowed on HN.
      • 2 hours ago
        undefined
      • TZubiri2 hours ago
        I feel the intent of these rules are to forbid undisclosed aigen comments.

        If you ban disclosed usage of AIgen, you will get covert usage of AIgen

        • an hour ago
          undefined
        • mort962 hours ago
          You can actually ban both.
        • bigyabai2 hours ago
          > you will get covert usage of AIgen

          We get that regardless of how we ban disclosed usage.

        • wizzwizz42 hours ago
          Such behaviour is extremely obvious. Anyone capable of hiding it is also capable of just… not using AIgen.
      • alecco2 hours ago
        Meanwhile, armies of political bots make comment sections terrible and nothing happens. Yeah, I know talking about it also breaks the rules. But it is the truth!

        I don't want HN to become another victim of Dead Internet.

        And I explicitly stated my comment was AI generated. No dishonesty. 10k account with 17 years. This is ridiculous.

        • Boxxedan hour ago
          Posting an AI summary is about as useful as posting Google search results. We can all do it, we don't need anyone to do it for us.
        • mikkupikkuan hour ago
          As well as the points already raised by others, I'd like to make the point that we should be encouraging people to prompt LLMs themselves rather than just accepting the outputs of others. As a social norm, this will make society more robust to misinformation and deception, as it will result in fewer people trusting outputs without knowing how the LLM was actually prompted.

          This probably doesn't really matter in this context, but I think it's a general best practice worth reinforcing whenever possible.

        • littlestymaar2 hours ago
          If someone want to ask an LLM about something, good for them, but there's no need to paste its content over the internet, disclosed or not.