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Linus Torvalds Comments on ARM: Did he lose touch with reality?
(www.realworldtech.com)
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this post was submitted on 22 Sep 2023
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The cross-compiling point makes sense but, since this is a 4.5 year old message, the state of ARM in the cloud has changed. Now developers do actually have ARM-based machines because of Apple. AWS has Graviton2 instances now and they are a lot cheaper than similarly specced x86_64 instances. ARM is a viable consideration that can be made.
While its true that having ARM ecosystem is more feasible now, there's not many companies that's willing to equip their whole team with very specific model of laptop, with almost no servicable parts for no perceivable benefit. No, Pinebooks as well as Raspberry Pi laptops and cyberdecks are not feasible for industry.
Most companies are not looking for gimmicks for work, even when they make some for living; so no, looking cool is not a benefit that defeats all that cost.
Meanwhile, most people in the industry, such as myself, and my current bosses & colleagues, and my previous bosses & colleagues, and probably all my future bosses & colleagues are fine running x86 for production servers. It got everything we'd need, including upgradable RAM and decades worth of collective experience, which I cannot say ARM has.
At the same time, I have some hope for RISC-V. It won't take over the industry anytime soon, but it's been showing some promise for long term.
You know that's all just a software thing. If Microsoft decided to open Windows for ARM then it would no longer apply.
Yes but people nowadays go mostly for the cloud. Cloud providers will make scale ARM and sell it cheaper and you won't be replacing RAM on those for sure... at some point your management will simply crush your budget you'll be forced on ARM.
Okay, now you got me curious. Gimme examples of companies using ARM servers.
If we exclude all cloud providers who sell ARM like Google, Amazon and Oracle. Facebook actively uses ARM at scale and I personally have seen medium size companies (~200-500 employees) using it simply because their backend run fine and it's cheaper.
Not who you were responding to but, my company does this in AWS. To be fair, the entire platform is running in EKS so it's not much more difficult than updating the CI build pipelines to build multi-arch containers, adding additional nodepools, and scaling down the amd64 ones. This was tedious but not difficult to do. I keep a small set of amd64 nodes for off the shelf software that doesn't support arm.. I think the only thing left on those now is newrelic agents. Once we move off of them the x86_64 nodes can be killed entirely.
This ended up saving us tens of thousands of dollars per month. The next step is to move the bulk of workloads to spot instances. I'll be preferring arm but if there is only capacity for x86_64, I'll have that option because of the multi-arch containers. This is going to save even more money and force developers to build applications more tolerant of node failure in the process.
Vodafone is now into ARM as well: https://www.eenewseurope.com/en/vodafone-fast-tracks-arm-based-chipsets-for-open-ran/
Fair. For what it's worth though, macbooks have been the default laptop at every startup I've worked at over the last ~8 years.. The first M1 mbp was released in 2020 and most of those companies I was at had a policy of replacing machines after 2-3ish years too. it's getting to the point where entire companies can be/are running on arm.
Might be more specific to particular industries or company maturity level but this has been my personal experience.