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Bisected: The Unfortunate Reason Linux 4.20 Is Running Slower

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  • Originally posted by TemplarGR View Post
    AMD is only *realistically* vulnerable to the milder Spectre v1 variant.
    That was the situation when the first white papers and proof-of-concept attacks were published, since then we've learned that the situation isn't quite so rosy for AMD or ARM-based CPUs.

    Intel, being the dominant player in the market, is obviously what security researchers aim for and testing to see if the exploits work on AMD and ARM is something they may or may not do after they've found the issue on Intel and got the proof-of-concept working. With the latest set of speculative execution vulnerabilities, published only last week, they didn't even test them on AMD as they simply didn't have the hardware lying around.

    Don't get me wrong, Intel definitely has cut more corners than AMD, but having been and to some extent continuing to be the dominant player in the market they're obviously going to be under more scrutiny than anyone else. This additional scrutiny will obviously make the situation look more lopsided than it actually is.
    Last edited by L_A_G; 11-19-2018, 05:54 AM.
    "Why should I want to make anything up? Life's bad enough as it is without wanting to invent any more of it."

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    • Originally posted by L_A_G View Post

      That was the situation when the first white papers and proof-of-concept attacks were published, since then we've learned that the situation isn't quite so rosy for AMD or ARM-based CPUs.

      Intel, being the dominant player in the market, is obviously what security researchers aim for and testing to see if the exploits work on AMD and ARM is something they may or may not do after they've found the issue on Intel and got the proof-of-concept working. With the latest set of speculative execution vulnerabilities, published only last week, they didn't even test them on AMD as they simply didn't have the hardware lying around.

      Don't get me wrong, Intel definitely has cut more corners than AMD, but having been and to some extent continuing to be the dominant player in the market they're obviously going to be under more scrutiny than anyone else. This additional scrutiny will obviously make the situation look more lopsided than it actually is.
      Yeah, but the attitude you purvey about these researchers is just so ignorant and stupid because it doesn't reflect reality at all. If these researchers do in fact think like you describe, and somehow in my gut feelings I doubt that very much, then they can't possibly know for sure.

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