"Downfall" Intel CPU Vulnerability Can Impact Performance By 50%

[Od1sseas]

Because it was funny. And no, I'm not going to explain.

Really? Personal jabs huh?

Look in a mirror.

You seemed have missed something. Go back and read through the thread. Take it slow, no need to rush yourself. Oh and just an FYI, the MalwareBytes example is deeply flawed, which only highlights what you're missing.

So your arguments are basically "i don't have to explain because its too obvious" (how convenient) and insults. Congrats.
Yes, i might have missed something, yes, i might be incorrect but i would like to stand corrected with actual arguments and evidence instead of being insulted.

 

[lexluthermiester]

So your arguments are basically "i don't have to explain because its too obvious" (how convenient) and insulting.

No, my statement is that I've already explained this and I don't feel like doing it again. Go read and inwardly digest.

Yes, i have missed something, yes, i am incorrect

There you go.

but i would like to stand corrected with actual arguments

Then go read through the thread.

instead of being insulted.

I'm not insulting you, yet. Calm yourself.

 

[Kursah]

Easy fix, reply ban for those of you whom cannot behave or compose yourself in here. Stay on topic, and the topic isn't insulting or trolling each other. Keep your egos out of it and help folks ffs. Thanks!

 

[Space Lynx]

@R-T-B is Downfall one of those things where it only really is dangerous if someone physically gets ahold of your laptop? Or can it be exploited remotely? I read a bit on it, but still can't find that detail. Cause I personally see no reason for the microcode patch if that is the case, cause I mean 90% of users literally just do casual use on their laptops, and if someone gets a hold of it physically well its gone at that point anyway, just reset your passwords and move on with your life, same as if you lost a smartphone. I know there are more scenarios than that, but I am speaking for the vast majority of casual users.

Or will you be forced to download the microcode patch through a Windows update regardless? no way to avoid the performance loss? will it make stuff like world of warcraft run slower on say a 11th gen intel cpu? or will it only make like productivity loads run slower?

@AleksandarK do you know where do you download the microcode update and how do you opt out of it? asking my niece's gaming laptop i gave her which has kaby lake, all she does is play games, so no reason to hinder performance. I want to opt out

 

[chrcoluk]

Its very likely for chips Intel still support there will be a Windows microcode patch (same for linux/bsd), although these patches might not be part of the Windows CU, so could be skipped. However would be integrated into a future feature update. As an example On Windows 10 1809, 9900k microcode patch is optional, but its part of 21H2 built in so compulsory. (found the reason why 21h2 slowed down on my 9900k after more testing aside from the Nvidia WDDM changes).

 

[AleksandarK]

@AleksandarK do you know where do you download the microcode update and how do you opt out of it? asking my niece's gaming laptop i gave her which has kaby lake, all she does is play games, so no reason to hinder performance. I want to opt out

Actually, I don't have an information how this should apply generally. But you can find the list of microcode updates for Linux here: https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/tree/main/intel-ucode I don't have a list for Windows tho.

 

[R-T-B]

@R-T-B is Downfall one of those things where it only really is dangerous if someone physically gets ahold of your laptop? Or can it be exploited remotely?

It can be exploited via anyone who can execute code. Usually, that's just you if you are the sole user and are responsible / keep it free of malware and such.

Or will you be forced to download the microcode patch through a Windows update regardless? no way to avoid the performance loss? will it make stuff like world of warcraft run slower on say a 11th gen intel cpu? or will it only make like productivity loads run slower?

It affects avx512 mainly, so I don't think any games will really be impacted regardless. Maybe some emulators.

 

[Space Lynx]

It can be exploited via anyone who can execute code. Usually, that's just you if you are the sole user and are responsible / keep it free of malware and such.

yeah all she does is play games so I could care less as long as Minecraft keeps running well on it, so I won't be patching it on her laptop.

 

[R-T-B]

yeah all she does is play games so I could care less as long as Minecraft keeps running well on it, so I won't be patching it on her laptop.

Honestly the more these things happen I do feel that's a valid choice as long as you know what it entails / run a clean ship pc wise.

 

[Space Lynx]

Honestly the more these things happen I do feel that's a valid choice as long as you know what it entails / run a clean ship pc wise.

ya she has nothing to steal, unless the hackers want her minecraft account, thats basically all she uses my old gtx 1070 laptop for. lol

 

[Mussels]

Just amazing. Ryzen also being hit up to 50% performance loss in some workflow with Inception mitigations. This is a catastrophe. Could also have huge impact on SSD I/O, especially small file access. Upcoming direct storage under Windows for gaming. Lets hope you can disable the mitigations under Windows.

Its linux. They'll have updates done to mitigate much of that within weeks.

On linux AMD's 7000 series runs worse with the mitigations disabled, than enabled - sometimes it's far more complex than it first seems. Those are preliminary results for security critical setups that MUST have the fixes done immediately, with performance fixes coming back in later.

Windows mitigations usually take longer, but they've had more time to minimise performance losses too (learning from what's been found out in the linux world, usually)

 

[Polius]

And i was wondering why my cpu score went from 12000+ to barely hitting 10000

Specs
I5 10400f
Rtx 3060
16gb 3000mhz ram

 

[ThrashZone]

Hi,
How did I miss this lol

Well remote access I've always disabled this nonsense along with hyperV in features if it weren't for microsoft reinstalling the remote access app I guess I'd be a lot safer
But yeah I've used Inspectre since it came out even on win-7 and the bugger man hasn't shown up yet so I agree this is yet again another nothing burger for population unless they work for some large company worth hacking.

GRC | InSpectre

Good point though mbam says I'm crushing it so it must be true