- Oct 4, 2012
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http://wccftech.com/intel-inverse-hyper-threading-skylake/
The concept here is sort of like VISC, taking multiple cores and getting them to appear as a single one, the opposite of what hyperthreading does, so that each core can work on the same software thread.
Not sure I believe it yet, seems like something Intel would shout from the rooftops at the first reviews, but...I guess we'll see soon enough with IDF starting. I hope they're not just seeing Turbo Boost in that graph or something. Perhaps AVX-512 brings a bigger boost to single cores, but takes too much power for more than two to return a huge benefit.
The concept here is sort of like VISC, taking multiple cores and getting them to appear as a single one, the opposite of what hyperthreading does, so that each core can work on the same software thread.
The following benchmark is a result of the SPEC CPU2006 suite courtesy of Heise.de. The first 4 points on the x axis represent physical cores, and the next 4 represent logical cores. As you can see, single threaded performance has taken an absolutely huge jump from the Haswell counterpart to Skylake. Infact, the performance doesn’t increase as more threads are activated. It actually goes down. This is a trend that is the exact opposite of the Haswell counterpart in which performance increases as more threads come online. The reason why this could be happening is because all 4 physical cores are already powering the single thread so as more threads come online, software inefficiency results in a declining trend.
This obviously means that there is going to be an absolutely, absolutely massive boost in performance of single threaded applications in which a Skylake processor is used. This is pretty huge folks. Also (caution: opinion), I suspect, part of Intel’s “Global Shortage” has something to do with the fact that they have yet to reveal the biggest selling point of the Skylake processor to the consumers. Which go a long way in exponentially increasing demand.
Not sure I believe it yet, seems like something Intel would shout from the rooftops at the first reviews, but...I guess we'll see soon enough with IDF starting. I hope they're not just seeing Turbo Boost in that graph or something. Perhaps AVX-512 brings a bigger boost to single cores, but takes too much power for more than two to return a huge benefit.
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