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Thread: AMD Epyc 7742 2P Rome Server Review

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    AMD Epyc 7742 2P Rome Server Review

    More of just about everything that matters in the datacenter space.
    Read more.

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    Re: AMD Epyc 7742 2P Rome Server Review

    Wish cpu's could get away from the old x86 leftover and create something new. Why not just have a x64 default. Or x128.

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    Re: AMD Epyc 7742 2P Rome Server Review

    Quote Originally Posted by Korrorra View Post
    Wish cpu's could get away from the old x86 leftover and create something new. Why not just have a x64 default. Or x128.
    Simply because it would break so much stuff.....
    But yes - I agree!
    Old puter - still good enuff till I save some pennies!

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    Re: AMD Epyc 7742 2P Rome Server Review

    Quote Originally Posted by Korrorra View Post
    Wish cpu's could get away from the old x86 leftover and create something new. Why not just have a x64 default. Or x128.
    I think that is one of the reasons there is so much interest in RISC-V.

    Making a cpu go this fast is hard enough that dealing with the historical baggage of x86 doesn't really add that much to the problem. Previous estimates were about 5% of die size. Decoding AMD64 instructions is already pathologically hard so adding the old x86 junk in there doesn't really matter. Using a modern ISA like RISC-V would make lots of the decode logic go away, and maybe get a small performance improvement, but not much. It would probably win most if you went for a lower performance CPU where the core size would benefit a lot more, and then compared to AMD64 you could cram a lot more high-ish performance cores on a cheap-ish die.

    But there is truth to what you say. I presume modern PCs still honor the A20 gate from 286 days, adding a slight delay to the addressing path and limiting clock speeds, but I doubt more than a handful of people would use that for their DOS himem.sys driver these days.

    Quote Originally Posted by 3dcandy View Post
    Simply because it would break so much stuff.....
    But yes - I agree!
    From the last time I tried running the original Civilization game (which I think expected 16 bit Windows 3.1) on a modern PC, it's already broken.

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    Re: AMD Epyc 7742 2P Rome Server Review

    Bet Intel PR are having a wonderful morning
    Half dev, Half doge. Some say DevDoge

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    If something is/was broke it was probably me. ¯\_(ツ)_/¯

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    Re: AMD Epyc 7742 2P Rome Server Review

    Quote Originally Posted by MLyons View Post
    Bet Intel PR are having a wonderful morning
    Very true.

    I really do wonder what slanderous trash they come up with this time.

    One day, they're bound to surprise us all and actually be honest.... or say nothing, surely it has to happen?

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    Re: AMD Epyc 7742 2P Rome Server Review

    Quote Originally Posted by MLyons View Post
    Bet Intel PR are having a wonderful morning
    Agreed.

    Hexus not reporting on the SWAPGS vulnerability, you didn't report on the ZombieLoad one either?

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    Re: AMD Epyc 7742 2P Rome Server Review

    Quote Originally Posted by Yoyoyo69 View Post
    Quote Originally Posted by MLyons View Post
    Bet Intel PR are having a wonderful morning
    Very true.

    I really do wonder what slanderous trash they come up with this time.

    One day, they're bound to surprise us all and actually be honest.... or say nothing, surely it has to happen?
    best guess?

    "Call Dev... bring a bigger fridge, this needs to be cooler"

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    Re: AMD Epyc 7742 2P Rome Server Review

    Nice, would be interesting to see it do some real benchmark loads and virtualisation loads as I can see these being VM monsters.

    I think for the conclusions, AI is usually in the form of plug in cards making PCIe 4 a better optimisation than the AVX512 instructions.

    There is a silly typo on page 3, I presume those NVMe modules are 4TB, not 4GB.

    Can't say I'm too surprised that Intel were slow in getting a machine together to compare this against

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    Re: AMD Epyc 7742 2P Rome Server Review

    I'm not seeing any tests on how Rome handles a mix of VMs, surely a must for any datacentre. Likewise I'd like to see MS Terminal Server tested.

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    Re: AMD Epyc 7742 2P Rome Server Review

    Quote Originally Posted by DanceswithUnix View Post
    I think that is one of the reasons there is so much interest in RISC-V.

    Making a cpu go this fast is hard enough that dealing with the historical baggage of x86 doesn't really add that much to the problem. Previous estimates were about 5% of die size. Decoding AMD64 instructions is already pathologically hard so adding the old x86 junk in there doesn't really matter. Using a modern ISA like RISC-V would make lots of the decode logic go away, and maybe get a small performance improvement, but not much. It would probably win most if you went for a lower performance CPU where the core size would benefit a lot more, and then compared to AMD64 you could cram a lot more high-ish performance cores on a cheap-ish die.

    But there is truth to what you say. I presume modern PCs still honor the A20 gate from 286 days, adding a slight delay to the addressing path and limiting clock speeds, but I doubt more than a handful of people would use that for their DOS himem.sys driver these days.



    From the last time I tried running the original Civilization game (which I think expected 16 bit Windows 3.1) on a modern PC, it's already broken.
    Games though huh - ade shrugs shoulders
    Old puter - still good enuff till I save some pennies!

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    Re: AMD Epyc 7742 2P Rome Server Review

    Quote Originally Posted by Quartz View Post
    I'm not seeing any tests on how Rome handles a mix of VMs, surely a must for any datacentre. Likewise I'd like to see MS Terminal Server tested.
    The closest I've seen is STH have a partner that does KVM virtualisation load metrics that they are able to get obfuscated data for:

    https://www.servethehome.com/amd-epy...-a-knockout/8/

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