2 replies, 2 voices Last updated by Randall Blanchard 4 years, 5 months ago
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    • #41358

      Randall Blanchard
      Participant
      @leftblank15

      I have disabled hyper-threading, on my mid-2015_15-inch_Retina_MacBook-Pro, which normally has a 4th-generation mobile CPU, with four-physical-CPU-“cores”, and four-virtual .

      I disabled the hyper-threading feature, to thwart the Meltdown, Spectre-variants, ZombieLoad, and SWAPGS hardware CPU-design-flaws — this incurs, an up-to-40%, performance, hit .

      How many CPU-“cores”, do I have, when the Mac’s Hyper-threading is disabled ?

    • #41365

      TeamKomando:John
      Participant
      @264458

      Hello leftblank15,

      By disabling hyperthreading you are disabling your 4 virtual cores and thus diminishing your processors performance.

      If you are only downloading software from the Apple store or trusted vendors you could re enable hyperthreading as the exploits begin with malicious software.

    • #41366

      Randall Blanchard
      Participant
      @leftblank15

      And normally, you would be correct, but, if you mix-in computer “backdoors”, it may massively amplify, the problem !

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