Windows 10 CPU Bug Fix Patch Benchmarks

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Jan 4, 2018.

  1. airbud7

    airbud7 Ancient Guru

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    Thanks Berke53
     
  2. Yxskaft

    Yxskaft Maha Guru

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  3. Neo Cyrus

    Neo Cyrus Ancient Guru

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    That's a 720p measurement so take it with a grain of salt. And AssCreed Origins is coded like... what should I compare it to... rotting donkey meat. Then further slowed by DRM + Denuvo DRM protection + more DRM taking more CPU cycles. It's a bad example to see anything other than perhaps what effect DRM has.

    So far I've only measured SSD speeds and there was a noticeable loss on 4K writes. But I didn't record/screenshot the info, I should have, and I don't remember the exact numbers. Alzheimer's is OP.
     
  4. rflair

    rflair Coleus Staff Member

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    On my older 3770K system this patch broke Asus AI suite, no fan/temp control, get a memory access violation. I'll try to reinstall later tonight.
     

  5. PurSpyk!!

    PurSpyk!! Master Guru

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    Hi, Any ideas how this "fix" affects the original Core i7 processors, specifically the 990x
     
  6. Yxskaft

    Yxskaft Maha Guru

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    720p tests are done because it minimizes the risk of GPU limited tests. Assuming they had tested at 1080p or higher, the 980 Ti might have bottlenecked and made it seem like no performance difference at all.

    But it shows there can be a performance penalty for games.
    Word is also that the older CPUs might see a bigger performance penalty, since Haswell and later have certain features reducing the performance impact.
     
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  7. sykozis

    sykozis Ancient Guru

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    The tool mentioned in that thread is specific to the IME bug and has nothing to do with Meltdown or Spectre....
     
  8. Neo Cyrus

    Neo Cyrus Ancient Guru

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    I know, I'm saying at resolutions we'd use the difference would be reduced.
     
  9. airbud7

    airbud7 Ancient Guru

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    you still want to stress the CPU/ not the graphics card...

    720p will definitely do that.
     
  10. WareTernal

    WareTernal Master Guru

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    I think he just picked a couple random games - it wasn't supposed to be a complete test. I haven't seen anything to substantiate the '20-35%' claim. That said, I'd love to see some results for CS:GO, Rainbow Six Siege, DayZ SA, and War Thunder.

    On reddit users are showing noticable drops on 4th gen CPU - up to 13% in DayZ SA on high settings. I'll take that with a grain of salt until I see it confirmed by a more reliable source.
     

  11. mbk1969

    mbk1969 Ancient Guru

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  12. user1

    user1 Ancient Guru

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    tested the basic patch on an old core 2 based laptop , small perf hit to disk io (4k random r/w), on an ssd , so even without PCID optimizations on older hw shouldn't be an issue even if you are running an ssd on an older system
     
    Last edited: Jan 6, 2018
  13. TheDeeGee

    TheDeeGee Ancient Guru

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    Isn't that using a turd of a game engine though?
     
  14. Alessio1989

    Alessio1989 Ancient Guru

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    No common user is going to see noticeable if it doesn't do high-intensive I/O operations that requires a lot of contexts switch. For database things are gonna be a little different, no tragedies at all but in big cluster environment even a 1% performance loss means money.
     
  15. sykozis

    sykozis Ancient Guru

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    Consumers that run VMs, like some of us do, will see a bigger impact than those that don't. Gamers will see almost no impact at all though. Worst case, I'd expect to see a 0-3fps dip. Some benchmarks are actually showing slight (0-1fps) improvements though. Only time will tell the real impact though.
     
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  16. HeavyHemi

    HeavyHemi Ancient Guru

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    Well...I actually scored a bit higher on PCMark10 post patch...ha ha

    https://www.3dmark.com/compare/pcm10b/172273/pcm10b/130856

    I'm within the margin of error for everything I've run. So, I think for consumers, it's more or less transparent. We'll have to wait and see for other use cases.
     
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  17. user1

    user1 Ancient Guru

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    im rather curious how exactly the "firmware update" component of the patch for spectre works, hope its as simple as a microcode update, lots of older hw will never get a proper bios update for this, would be nice if i could patch the devices myself.
     
  18. sykozis

    sykozis Ancient Guru

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    From my understanding, from the articles I've read, it is just a micro-code update. Those articles could be over-simplifying things though.
     
  19. darkvoid

    darkvoid New Member

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    How to uninstall only the patch for meltdown from the cumulative update KB4056892. I don't want the patch to be installed with the next cumulative update too. I have a tool that can prevent certain updated to be installed but i want only that part of the update to be uninstalled. Is it possible to allow the vulnerability on my pc?
     
  20. sykozis

    sykozis Ancient Guru

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    Why would you want such a vulnerability to exist?
     
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