• The Meltdown/Spectre patches will cause performance hits — but how much, and to whom?

    Posted on January 11, 2018 at 09:21 CST by • Comment in the Forums

    Gregg Keizer has a new article in Computerworld, Windows 7 takes biggest performance hit from emergency Meltdown, Spectre updates. It relies heavily on Microsoft’s pronouncements. I’m skeptical.

    There’s a detailed post from Jampe on the Intel support forum about the effect of the Windows 10 patch on a Thinkpad T440s. The results are not good — although the devil may be in the details.

    As Jampe reports, the first test (NewBottomLine) was performed before installing the Win10 update (not sure which one), and all of the three latter tests were with the update in place.

    Our own Noel Carboni responded with a good analysis:

    Passmark PerformanceTest (or any benchmark) is known to show quite variable results for disk testing. That’s the nature of PC systems; they do a lot of different things all the time. I’ve run into variances of 2 to 1 just doing subsequent tests. I’d really like to see a whole SERIES of before/after benchmarks.

    So for those of you who dare to tread into uncharted MS-DEFCON territory — do you have any benchmark runs to share? I’m particularly interested in tests of the Windows patches separately.

    Windows Patches/Security , ,
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