Windows 10 19H1 Update to Reduce Performance Impact of Spectre Mitigation

Megalith

Megalith

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Windows/Azure kernel team member Mehmet Iyigun has confirmed that the next significant Windows 10 update (19H1) will include Google’s Retpoline, a software-based mitigation for Spectre that affects performance only marginally compared to Microsoft’s earlier patches. 19H1 is expected to release early next year.

Retpoline as a mitigation strategy swaps indirect branches for returns, to avoid using predictions which come from the BTB, as they can be poisoned by an attacker. The problem with Skylake+ is that an RSB underflow falls back to using a BTB prediction, which allows the attacker to take control of speculation.
 
Haha, so MIT has a solution to completely fix meltdown/spectre. Microsoft is telling us that the overpriced hot turd (9900K) will be even faster after windows is patched. Hm, so timely right after the reviews of this overpriced junk are out.
How about this ? intel, go fuck yourself. that goes for microsoft and MIT as well...:D
 
If this is true, it's the first time I've been excited about a Windows 10 update. I'm still running a 2700K so I'm not sure this patch would help, but it would please me.
 
I seem to recall reading somewhere that there were no incident of Spectre attacks reported. I feel that this whole thing was likely a FUD thing to boost sales of new cpus......
 
zalazin said:
I seem to recall reading somewhere that there were no incident of Spectre attacks reported. I feel that this whole thing was likely a FUD thing to boost sales of new cpus......
Click to expand...
I didn't do bios patches or os patches any any of my office pc or my personnel pc , thank god to because my 8700k is killing the the new cpu scores of the same cpu
 
Flaws or Back doors hmmmmm...... Got to wear your tin foil hat for these things.....
 
zalazin said:
I seem to recall reading somewhere that there were no incident of Spectre attacks reported. I feel that this whole thing was likely a FUD thing to boost sales of new cpus......
Click to expand...

Only problem is the CPUs with hardware fixes for Spectre are not out till 2019. It looks like AMD will be first with Zen2 in Q1 or Q2.
 
zalazin said:
I seem to recall reading somewhere that there were no incident of Spectre attacks reported. I feel that this whole thing was likely a FUD thing to boost sales of new cpus......
Click to expand...


it was only really an issue for those running VM's on shared machines where you did not know who else had compromised VM that could.. maybe sniff your traffic.

For end users, no, as it required malicious code to be ran to take advantage of the flaws, and if your downloading/running malicious code.. then thats your only issue
 
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