I don't want to hype Zen 2 / EPYC 2, but I do think it will be very competitive. And that is a Threat to Intel. And fundamentally, the REAL threat is neither ARM, AMD or even RSIC-V, it is TSMC.
Amazon’s Chips Threaten Intel
131–140 of 359 posts
Re: Amazon’s Chips Threaten Intel
#132Earlier quoted context omitted.
I dont understand this, they already share some of the source to several OS components. Do you care to elaborate a bit on this? Is there some GPL clause or something that became too risky for Apple or something? How do BSD projects get by with the newer licenses aside from already being open source it doesnt seem to affect their underlying license...
Allegedly, Apple hates GPLv3.
Meanwhile, updating gnu tools is pretty straightforward with homebrew, so the consequences of this view are minimal—for me, so far.
Re: Amazon’s Chips Threaten Intel
#133Earlier quoted context omitted.
Back in about 1996, most of the profs were going on about how x86 would crumble under the weight of the ISA, and RISC was the future. One of my profs knew people at Intel, and talked of a roadmap they had for kicking butt for the next dozen years. Turns out, the road map was more or less right. Is there more roadmap?
Intel chips are RISC under the hood these days (for a long while - decade or more). They're CISC at the ASM layer before the instructions are decoded and dispatched by the microcode.
If they didn’t care about backwards compatibility, would it be possible for them to release versions of their CPUs with _only_ the microcode layer? If yes, would a sufficiently good compiler be able to generate faster code for such a platform than for x86?
Alternatively, could Intel theoretically implement a new, non-x86 ASM layer that would decode down to better optimized microcode?
Re: Amazon’s Chips Threaten Intel
#134From the article: "Amazon licensed much of the technology from ARM, the company that provides the basic technology for most smartphone chips. It made the chip through TSMC, a Taiwanese company." Amazon became an ARM architecture licensee and had their variant manufactured for them by TSMC. I find the characterization "home grown" as a stretch here, had they designed their own instruction set etc I might agree. That s…
I think it's fair to call it home grown, like in house, but to say it threatens Intel is like saying that Amazon has introduced a server chip that will take over everyone's datacenters from Intel. Seems unlikely. Amazon also has to be careful now not to run afoul of anyone's IP as they can't farm out that responsibility to other providers.
AWS is what is actively taking over data centers. If it were to start running on Amazon chips, the result may possibly the same.
Re: Amazon’s Chips Threaten Intel
#135Apologies in advance for the layperson question: It's my understanding that a lot of CPU gains come from caching. That suggests to me that there is potential performance to be gained by caching across a larger number of machines. Is that something Amazon could do here? Somehow connect all their machines and cache in a huge space? Maybe individual physical machines would be more like a front end for a cache space, and…
Cache is insanely fast, orders of magnitude faster than ram, and basically instant compared to going to disk or another machine on the network. I would find it unlikely that they could overcome the added network latency introduced in such a system. Edit: check this out for more info https://people.eecs.berkeley.edu/~rcs/research/interactive_l...
This means that there will absolutely never* be anything that can give faster access that is going to be farther than that from the CPU. Or more specifically half of that distance as the message to request what part of the cache to read must travel to the cache itself.
* Unless we find out FTL is possible. But it's a rather safe bet to assume no.
Re: Amazon’s Chips Threaten Intel
#136Earlier quoted context omitted.
CISC is still an asset rather than a liability, though, as it means you can fit more code into cache.
I don't think that's an advantage these days. The bottleneck seems to be decoding instructions, and that's easier to parallelize if instructions are fixed width. Case in point: The big cores on Apple's A11 and A12 SoCs can decode 7 instructions per cycle. Intel's Skylake can do 5. Intel CPUs also have μop caches because decoding x86 is so expensive.
Re: Amazon’s Chips Threaten Intel
#137Just yesterday, I was trying to explain to my partner (who isn't a programmer) why I think open source software and hardware is so important. My argument is that without enough core components in the industry standard tech stack being open source, the more likely companies who develop solutions will restrict user freedom. For example, Apple has been able to own nearly their entire iDevice stack from manufacturing to…
The world we live in is built upon a series of choices, the most important of which is whether you take a higher paying job or building what you desire.
There will always be a lag between the latest product, or in the case of Linux vs Unix, reverse engineering and developing a compatible product.
Re: Amazon’s Chips Threaten Intel
#138Since this is about vertical integration for them it would make a certain amount of sense.
Re: Amazon’s Chips Threaten Intel
#139Earlier quoted context omitted.
They can compile "everything" that Microsoft has written to ARM. There's a small matter of, you know, all the other stuff.
Make the server is cheaper and people will use them. It already doesn’t matter for a lot of people. Java? PHP? JS? C#? If you’re using in interpreted language then as long is the interpreter is updated you don’t need to care. Outside of that costs rule the day. If the arm servers are noticeably cheaper then people will be incentivized to make their software run on it. Tons of open source software runs on Windows. Why…
> If the arm servers are noticeably cheaper then people will be incentivized to make their software run on it.
Yeah, I don't think the incentive is as large as you perceive it to be. Few, if any, customers are going to hire back the people they got rid of five years ago to port their old code over to a platform that is 50% cheaper to run, let alone smaller to no existent savings.
But that's kind of missing the simpler problem though: there's a reason beyond form factor that the ARM version of Windows has limited features/offerings...
> Why isn’t windows more common on Azure and AWS? It costs more per hour.
Actually, with three year reserved instances, the pricing is largely the same in Azure.
Re: Amazon’s Chips Threaten Intel
#140Earlier quoted context omitted.
Intel is microarchitecture + fab corporation. They do it all. 1. TSMC (also GlobalFoundries) is fab only. They design the node for the process and way to fabricate it. 2. Then ARM joins with TSMC to develop the high performance microarchitecture for their processor design for TSMC's process. 3. Then ARM licenses the microarchitecture designed for the new processes to Amazon, Apple, Qualcomm who develop their own vari…
>'They design the node for the process and way to fabricate it." What is a "node" in this context? I'm not familiar enough with FAB terminology.