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Old 02-01-18, 10:35 PM
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Reported Intel design flaw forces Windows/Linux Redesigns - 30% performance impact?

Software patches expected to have a 5-30% performance impact.



Read more about Intel's rumoured security issue.

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Old 02-01-18, 10:49 PM
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Oh, come on Intel, seriously?

I suppose AMD employees are uncorking champagne bottles right now
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Old 02-01-18, 11:07 PM
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This is major for servers, but not relevant for desktop setups at all, really, if some of the early speculation is to be believed.

EPYC just got a whole lot better for most server providers.
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Old 03-01-18, 01:18 AM
Radioman Radioman is offline
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Quote:
Originally Posted by looz View Post
This is major for servers, but not relevant for desktop setups at all, really, if some of the early speculation is to be believed.

EPYC just got a whole lot better for most server providers.
You ain't kiddin. We are still early on this one. If this turns out to be as big as the news report implies it could be tough sledding for Intel for quite a while.
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Old 03-01-18, 06:40 AM
NeverBackDown NeverBackDown is offline
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Pretty sad that even after 8 generations of refinements on the same architecture they still have major security issues.
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Old 03-01-18, 07:19 AM
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Quote:
Originally Posted by looz View Post
This is major for servers, but not relevant for desktop setups at all, really, if some of the early speculation is to be believed.
I hope so because I'm gonna be in' livid if I lose even 5% performance after the update.

Linux fix has been released and there's been no reduction in gaming performance. I hope that the same will be true for Windows. Still, I'm probably switching to Ryzen this year.
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Old 03-01-18, 09:38 AM
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OK got some more info on this.. First of all an explanation as to why it hurts performance so much.

I'm writing this up this morning, and I can confirm it's genuine: the Linux patch is already in place and marks pretty much any Intel chip as 'insecure.' (It also does the same for AMD chips, which is a result of the severity of the flaw causing the devs to err on the side of caution - there's no evidence AMD parts are affected, and AMD's working on its own patch which will remove the insecure flag.)

Same way Intel 'fixed' the F00F bug: when you know what triggers the problem, you just have a bit of the OS that says "don't do that."

Then some one asked how it worked..

Imagine you've got a bike which falls over every time you turn left: you'll soon learn to only turn right. You'll get to your destination eventually, but more slowly than if the bike didn't have the flaw.


From my understanding, the performance-sapping change need only be applied to insecure parts (i.e. everything Intel), and doesn't need to be applied to AMD parts but currently is being applied to AMD parts until AMD gets its own patch saying "don't apply this to us" merged.

All information courtesy of Gareth Halfacree (freelance writer, oddly about all things Linux).

Then some one spotted this.

https://www.fool.com/investing/2017/...-of-stock.aspx

lmfao. Just. lmfao. The crafty law breaking get.
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Old 03-01-18, 09:40 AM
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But isn't it solely x86? = x64 goes clear?
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Old 03-01-18, 09:42 AM
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But isn't it solely x86? = x64 goes clear?
From what I understand this is a Linux problem. And from the sound of it it cannot be fixed.

The guy who wrote the comments above is an avid Linux user and writes columns in mags about it every month (and hobby tech stuff too, using, you guessed it, Linux).
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Old 03-01-18, 10:04 AM
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As i understand it, its for every OS.
Linux is just the first out with a fix = They can test the performance hit.
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