Probably just a coincidence.
Intel CPU performance-loss by security-patch?!?
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Re: Intel CPU performance-loss by security-patch?!?
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Re: Intel CPU performance-loss by security-patch?!?
I just installed Windows update KB4056892 which contains a fix for the 'Meltdown vulnerability', the good news is that I don't see any difference in raw calculation speed with my engine at all. My engine runs multithreaded in a single process on a i7-6950X, it is possible that IO is affected and that the fix has some impact on probing the TB's but that is something I still have to check.
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Re: Intel CPU performance-loss by security-patch?!?
That sounds encouraging, thanks for reporting it.Joost Buijs wrote:I just installed Windows update KB4056892 which contains a fix for the 'Meltdown vulnerability', the good news is that I don't see any difference in raw calculation speed with my engine at all. My engine runs multithreaded in a single process on a i7-6950X, it is possible that IO is affected and that the fix has some impact on probing the TB's but that is something I still have to check.
Peter
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Re: Intel CPU performance-loss by security-patch?!?
You could probably see slowdown in some extent if you are using large pages and big amount of hash.Joost Buijs wrote:I just installed Windows update KB4056892 which contains a fix for the 'Meltdown vulnerability', the good news is that I don't see any difference in raw calculation speed with my engine at all. My engine runs multithreaded in a single process on a i7-6950X, it is possible that IO is affected and that the fix has some impact on probing the TB's but that is something I still have to check.
Slowdown due to TB access will be significant (10-50%) but still much smaller than the difference between TBs on SSD vs HDD. It would be in a ballpark of fast SSD versus regular SSD. So unless you run tests with only specific TB positions you are unlikely to see really visible slowdown.
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Re: Intel CPU performance-loss by security-patch?!?
Any further observations by anyone who has applied this patch would be most appreciated.
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Re: Intel CPU performance-loss by security-patch?!?
Ideas=science. Simplification=engineering.
Without ideas there is nothing to simplify.
Without ideas there is nothing to simplify.
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Re: Intel CPU performance-loss by security-patch?!?
it was only $39 million - sold all the shares he was allowed to sell (Intel requires CEO to maintain 250,000 shareszullil wrote:Probably just a coincidence.
This article was written before the latest debacle was publicly known and even then it was suspicious.
Motleyfool
But the avg prices he sold out is only $.30 higher than today's price. The price ran up right after he sold it. For these guys $.30 on 250,000 shares is chump change.
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Re: Intel CPU performance-loss by security-patch?!?
Intel is 4% down today only (while DOW is 0.6% up) and that's just the beginning. So I'd say you are greatly downplaying it.MikeB wrote:But the avg prices he sold out is only $.30 higher than today's price. The price ran up right after he sold it. For these guys $.30 on 250,000 shares is chump change.
In the same time AMD up over 5% just today .