![]() ![]() Supercharge your Summer desktop PC build with genuine software from GoDeal24, with Windows 11 Pro priced at just $10.25. Get the world's most powerful productivity suite, Office 2021 Professional Plus, at just $24.25, with multi-PC packs lowering the price even further-down to as low as $13.05 per PC as part of a 5-PC pack. GoDeal24 unveils the 2023 Summer MS Office Super Sale. Executing a Downfall attack might seem complex, but the final choice between implementing the mitigation or retaining performance will likely vary depending on individual needs and risk assessments. Though the microcode update is not mandatory and Intel provides an opt-out mechanism, users are left with a challenging decision between security and performance. The ramifications of Downfall are not restricted to specialized tasks like AI or HPC but may extend to more common applications such as video encoding. While these reductions were less than Intel's forecasted 50% overhead, they remain significant, especially in High-Performance Computing (HPC) workloads. For instance, two Xeon Platinum 8380 processors were around 6% slower in certain tests, while the Core i7-1165G7 faced performance degradation ranging from 11% to 39% in specific benchmarks. Phoronix tested the Downfall mitigations and reported varying performance decreases on different processors. However, there's concern over the performance impact of the fix, potentially affecting AVX2 and AVX-512 workloads involving the Gather instruction by up to 50%. Intel has responded by releasing updated software-level microcode to fix the flaw. The entire list of affected CPUs is here. The flaw affects Intel mainstream and server processors ranging from the Skylake to Rocket Lake microarchitecture. It inadvertently exposes internal hardware registers, allowing malicious software access to data held by other programs. The vulnerability is linked to Intel's memory optimization feature, exploiting the Gather instruction, a function that accelerates data fetching from scattered memory locations. You can just use a tape measure on your mouse pad to confirm it's the same even if it feels different to you.Intel has recently revealed a security vulnerability named Downfall (CVE-2022-40982) that impacts multiple generations of Intel processors. If it's within +/- 10% or so of that it's probably just the natural variance of the surface or a little DPI deviation (which you can test on this site), but this would be consistent and not changing day to day. So if you are at 1080p, then you need 1920 "400th's of an inch" of mouse pad movement to move from one side of the desktop to the other - therefore, 1/400 * 2.54 * 1920 = 12.192cm on the mouse pad. If the cursor moves the same distance on the screen as it does on the pad day to day then the variable is you, not the mouse.Į.g if you are at 400 DPI, then 1/400th of linear inch movement with the mouse sends a count of 1 to the operating system, at Windows 6/11, this is converted into 1 pixel displacement. The short version is no one can debug your feels, but sensitivity is measurable. ![]() Likewise, if I am particularly caffeinated on a given day, it can feel far slower than usual. ![]() If I don't play for a week or so the sens can feel much faster when I get back to it. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |