DragonFlyBSD's Meltdown Fix Causing More Slowdowns Than Linux

[aht0]

It is a conspiracy.

A conspiracy by Intel, to make their CPUs appear better than they actually are.

Rather than conspiracy just shoddy business practice.. Sacrifice security for performance. And later, sacrifice security in order to stay ahead of a competitor.

[drSeehas]

... The fault needs to be laid squarely at the feet of the various hardware vendors, namely Intel, AMD, ...

???
Did you realize AMD CPUs are not affected by Meltdown?
There is no slowdown on AMD CPUs.

[unixfan2001]

It is a conspiracy.

A conspiracy by Intel, to make their CPUs appear better than they actually are.

[dungeon]

It's not about AMD. Many people don't buy new hardware every day. There are people out there with Core2Duos and things like that. You could say they should upgrade, and maybe they should, but it has to be their choice, not Intel's.

All things considering there is an usual unofficial recommendation that after up to about 6 years people should upgrade their hardware, of course that is just recommendation no one forcing you to upgrade, but some software will sooner or later

[duby229]

I''ve got a suspicion AMD's major CPU design teams are hootin' and hollerin' and yeehawin' loud as fuck right now. I bet you they feel totally vindicated in their frontend design.

EDIT: After a lot of reading, I'm convinced This problem only exists because Intel allowed their engineers to cheat with the frontend a bit. Intel CPU's don't have device drivers, they have frontends. Intel can't do what nVidia does with its device drivers so they fudge the CPU's frontend instead. And that's why I say AMD must feel totally vindicated. While we might be just learning about these tricks, Intel must have been using these tricks in their microcode for performance optimizations from the very beginning. That's probably why these vulnerabilities look a lot like they were designed features and not bugs at all.

[Serafean]

It's not about AMD. Many people don't buy new hardware every day. There are people out there with Core2Duos and things like that. You could say they should upgrade, and maybe they should, but it has to be their choice, not Intel's.

Yep, C2D user here. The machine is going on 8 years, and I have absolutely no reason to upgrade. It still is powerful enough for common tasks and development.

[eydee]

amd processors do not have meltdown bug in the first place

It's not about AMD. Many people don't buy new hardware every day. There are people out there with Core2Duos and things like that. You could say they should upgrade, and maybe they should, but it has to be their choice, not Intel's.

[pal666]

But not all x86 processors support it

amd processors do not have meltdown bug in the first place

[numacross]

This all stinks to high heaven of a conspiracy.

Just wait till you read about SMM that's present since the Intel 386

It makes sense to have the common tools of the people compromised by the powers that be. Be it computers or the Internet in general. It's all about control and we've been doing it to ourselves since the beginning of time via various means...

[Spooktra]

I really wonder how you think a government could even do this 25 years long with so many people involved and everybody was OK with this and kept his mouth shut. There's no way to keep a secret with that many people involved over that period of time.

You didn't put too much thought in your response, did you? Has the government revealed everything they know about the Kennedy assassination? Ever hear of FISA courts, secret warrants, national security letters, gag orders, etc?

All they would need to do is issue a directive to Intel, who owns the rights to the x86 ISA that says all cpu's must have a secret back door that is undocumented and have Intel codify in their design policies that all processors have to be designed with the following "features" without disclosing to their engineers why they insist on using said designs.

For proof look at OpenBSD:

https://www.theregister.co.uk/2010/12/15/openbsd_backdoor_claim/

http://www.linuxjournal.com/content/allegations-openbsd-backdoors-may-be-true

The backdoors existed for a decade until the NDA expired and the author of the backdoors revealed their existence.

Why do you think the Chinese have decided to use Chinese developed RISC-V based processors for their new supercomputers?

This all stinks to high heaven of a conspiracy.