171–180 of 296 posts
Those who have looked at the patches in detail: does it treat older generation CPUs differently than 7th gen? The Paper authors who wrote the KAISER patch expected much worse performance on older CPUs due to implementation issues... Unfortunately, Epic Games don't provide any details about their CPUs AFAICT.
Huge real world performance impact, they didn't say how much but it looks like close to 100%. I smell a class action lawsuit coming.
Hopefully not. Lawsuits are a fine way to stifle innovation. Imagine how hard it would be to push through any idea at Intel. No one saw this coming. Things happen. It's impossible to predict every contingency. They acted in good faith. Also, heh, users are funny: "all other games i have work fin by the way so there must be a problem whit fortnite."
The image didn't show up for me, here is a direct link for anyone with the same problem: https://lh6.googleusercontent.com/MwzsHRXQLVbmJ3pusNuGwn0ZQV...
Huge real world performance impact, they didn't say how much but it looks like close to 100%. I smell a class action lawsuit coming.
Hopefully not. Lawsuits are a fine way to stifle innovation. Imagine how hard it would be to push through any idea at Intel. No one saw this coming. Things happen. It's impossible to predict every contingency. They acted in good faith. Also, heh, users are funny: "all other games i have work fin by the way so there must be a problem whit fortnite."
Of course you can't predict every contingency, but some of them you pay for.
Earlier quoted context omitted.
I suppose if a Cloud provider could ensure that all your VM instances run on the same host and no other VM is allowed there then the issue would be a bit mitigated. Although this restriction on how the cloud provider is allowed to schedule your VMs probably would somewhat defeat the point of cloud hosting in the first place. Out of curiosity, how many VM/container instances usually run on a physical host at any given…
With AWS, and I assume most other cloud computing providers, you can pay extra for you instances to run in a host without someone else's VMs. You probably should be doing this for any servers were you handle sensitive data, but it is a place were many will be cutting corners.
Granted, that only works for workloads that are spread across enough small instances.
Earlier quoted context omitted.
All of them on HVM.
IIRC, XEN said that 32bit HVM VMs are not affected by Meltdown, and so probably don't get impacted by AWS' patches. They still require Linux kernel updates to protect the kernel space, so changes might still be seen there.
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Intel's PR dept is in overdrive, but the truth about this vulnerability is that it's essentially worst-case. It really only affects workloads where high performance is important. The average user might not see an impact but if you need fast IO God help you. The solution is to 'make less syscalls' but the problem is that syscalls have always been slow and the people making a lot of them are only doing so because they…
Isn't that like saying that it turns out this car we sold can only do 150, not 200. But it's okay because most of you never drive above 80 anyways. You're right. Most people who just surf the Netflix and download the YouTubes will not notice. But it's still a form of fraud, even to those who never max out CPU. I think fraud is a strong word knowing that this wasn't intentional. But they sold a lesser product than the…
Pretty much what I predicted here: https://news.ycombinator.com/item?id=16054674 > Sounds like servers handling lots of small UDP packets would be hit pretty hard.
Gameservers don't handle that many packets because they're limited in the number of player they host. A game a 60hz with 64 players will only receive 3840 packets/sec.
Surprise, surprise, Intel’s Meltdown patch has significant and serious performance impacts for specific kinds of workloads. All because Intel decided to “optimise” by checking for permissions after speculative retirement, instead of before like AMD.
If, as you say, AMD is not affected by Meltdown unlike Intel, will this significantly change the server market? Excuse the pun, but would this make e.g. AMD EPYC a lot more attractive for such data centers?