Windows Vulnerability CPU Meltdown Patch Benchmarked

Posted by: Hilbert Hagedoorn on: 01/04/2018 06:18 PM [ 186 comment(s) ]

A quick look at that expected desktop performance drop after we install the Microsoft CPU Meltdown Vulnerability Patch. Will our test PC drop massively in performance?

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DashD
Junior Member

Posts: 4

Posted on: 01/05/2018 12:28 AM

There are specific conditions where the patch would not all protections would activate, and that is with certain anti-virus software installed. My test rigs do not have that. The page you refer to only shows a few PowerShell commands to verify the patch is active. New firmware, however, might be required, as mentioned in the article. I check/verify this a bit more tomorrow (it's almost 11pm here).

Are you running latest bios 1003 for the NVME tests? I've heard a report that the patch is not active before that version, but I don't know if that's true.
My own tests show a 20% drop on the 4k read/write

chispy
Senior Member

Posts: 9597

Posted on: 01/05/2018 01:35 AM

PC specifications ? That info might help a lot. 20% drop it's a lot.

DashD
Junior Member

Posts: 4

Posted on: 01/05/2018 02:07 AM

PC specifications ? That info might help a lot. 20% drop it's a lot.

Intel 900p, 8700K, Maximus X Hero

The Goose
Senior Member

Posts: 3034

Posted on: 01/05/2018 02:14 AM

Given that bench marking an ssd can give very random scores, i know my Samsung pro 960 can vary from 2200 -2500mbs seq read so I think its safe to say that the difference in the bench marks is within margin of error and everyone can stop panicking for the sake of it.

tensai28
Senior Member

Posts: 1498

Posted on: 01/05/2018 02:43 AM

Ummmmm.... In order to full secure your PC you also need to update the CPU firmware.

That patch that Intel provides will be the one that impacts performance in certain workloads. Did you do this before the benchmarks? Because I think you're only benchmarking the windows 10 patch which isn't the patch that impacts performance
This. We are probably drawing conclusions too soon.

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