>With this work-around in place we can nearly double the performance of Indigio on the 2990WX as reported by Anandtech, The Tech Report, and ourselves. >THE RUMORS OF A MEMORY BANDWIDTH PROBLEM, EVEN WITH 32 CORES (AT LEAST IN THESE INSTANCES), HAS BEEN GREATLY EXAGGERATED.
The reason this is huge is it means that mainstream Zen 2 16c/32t CPUs on chipsets with 2 memory channels aren't going to be gimped. With any luck, Microsoft will fix the problem in the Windows 10 kernel before Zen 2 ships.
Imagine buying a $2000 CPU that doesn't even Ork out of the box LMAO. I'd kill myself if that were me.
Asher Hughes
Blame Pajeet OS 10, not AMD.
Caleb Evans
>Zen 2 16c/32t CPUs on chipsets with 2 memory channels aren't going to be gimped L3$ was reportedly doubled too, so either way it wouldn't be that bad. CES can't come soon enough
Ryan Long
Thing is, there was nothing wrong with the hardware. It's a bug in the Windows kernel. Linux version works flawlessly.
Carter Gonzalez
Imagine buying a $5000 CPU that has so many hardware vunerabilities it loses 25% of its performance (in the best of cases) to software patches designed to mitigate them.
Josiah Reyes
>what about Windows 7 what about it? it's not officially supported on those CPUs
Brandon Cox
delid dis
Josiah Torres
Fine wine
Nathan Collins
Holy shit, you're right. The fine wine meme is real.
Jack Evans
imagine being a wincuck
Joshua Peterson
It works out of the box on Linux, the superior paid-for OS with all the tech giants backing it. Windows users had to wait for some random autist to make a patch to fix it on their ramshackle OS.
>I'd kill myself if that were me. You need to toughen up faggot
Matthew Gonzalez
Is Level1 the official YouTube of Jow Forums?
Wyatt Gutierrez
Because I'm not using a $2000 paperweight?
Jose Campbell
> Zen 2 16c/32t CPUs on chipsets with 2 memory channels ah, the classic overhype/feign disappointment scam. keep it real faggots. it will be a single chiplet 8 core at most with all the mcm configurations reserved for future threadrippers only
Jeremiah Price
These crazy expensive server-class CPUs, do they often run Windows or is it almost always linux/unix?
Dylan Phillips
And TekSyndicate is the Jow Forums of youtube
Lincoln Hernandez
There is a surprising amount of Windows Server out there in SMB world. This will be more important as businesses realize AMD gives more perf/$ in a smaller footprint than Intel, but this realization will take a little while still.
Ian Jones
I don't want my CPU to ork out of the box. Sounds destructive.
Ryder Sanchez
The reason why the 2990wx has mem bottleneck is due to 2 dies having no direct access to ram.
Carson Sanders
Can I just point out that "THREADRIPPER" is the best tech branding ever. Absolutely perfect name for a CPU.
Luis Cook
Ah well I guess those tech sites should have never looked into it. What a silly waste of time. Thanks for clearing that up for us.
Daniel Wilson
I also enjoyed Bonetrail
Joseph Gray
spotted the npc who can't update his model of reality when presented with new information
Christopher Robinson
This should be handled by the OS automatically. Likely it will be soon enough with this sorts of asymmetric memory access becoming more common.
Jonathan Wright
6/10, nice (you)s
Adam Perry
>gets trips of Satan >no mention of Devil's Canyon I am sincerely disappointed.
Juan Wilson
He's clearly a skeleton king
Daniel Reed
What am I supposed to do, buy an i9 that will Orz out of the box?
William Brooks
>windows basicly throw around threads all the time instead of flushing them first
wasnt this LITERALLY the problem with the first ryzen and their abysmall perfomance? amd literally needs to pay microsoft to fix their own OS?
Juan Russell
Brainlet here
Does this mean that the people who go "oh if you buy AMD make sure to buy fast RAM because it chokes on anything that's a little bit slow" are now wrong because this is more like a bug that can be fixed and 2133 is fine?
Ryan Sullivan
AdoredTV is.
Xavier Baker
no this is just a windows specific bug that causes the scheduler to freak out when has more threads than it knows what to do with. It doesn't apply to 8 core systems.
Christian Gutierrez
They're not wrong, it just means that Zen will now be EVEN FASTER than "with just faster/better RAM".
It's not the threads specifically. It's to do with the amount of NUMA nodes per socket. Wendell thinks a patch or feature in windows to help performance on intel's extreme core count cpus is the cause. Those XCC cpus can be configured to have two numa nodes on one die because the memory latency across the twin ring bus buffers (the actual source of the ringbus scaling meme) isn't uniform and the same for the skylake X so cores don't have to travel to the opposite side of the die for memory access. He says that the windows configuration probably thinks that two numa nodes on a socket is it and works fine like that, but with the 2990wx there are four numa nodes so processes are still bounced around between dies causing the performance drops.
faster ram helping ryzen is because the ram controller and infinity data fabric are on the same clock domain, so faster ram effectively over clocks parts of the cpu as well.
John Howard
>Imagine buying a [...] CPU that doesn't even Ork out of the box
Nice work! This is also happening to my 7700HQ when i run a single core benchmark on w10, all cores get a 12% load, instead of 1 core getting a 100% load. Might be because this process gets passed around all cores really fast.
Henry Williams
>Workaround fixed in OS It never go wrong in this way, right Meltdown & Spectre?
Juan Martin
does the workaround require the user to know about it? or does it "just work" when you install windows 10 on your TR machine?
Why does Wendell have to fix all of AMD's fuckups?
Lucas Ross
*Windows fuckups
Elijah Robinson
Exactly, the OS should be able to work around that with thread scheduling prioritization.
Microsoft's lack of presence in the HPC world is catching up to them. 4S world and beyond has been a big unknown to them. It took years for Microsoft to even get NUMA right.
I don't expect this issue to go away until Windows 10's successor.
Nathan Harris
That's partly correct, but Window's thread scheduling is too stupid to work around it making the problem much worse than it should be.
Connor Brooks
Then just imagine using windows 10.
Watch this turn into perma "wontfix" from microsoft.
It's not AMD's fault that the OS you use sucks donkey balls. Literally any other OS is able to manage hundreds of cores/threads much better than Wincucks.
Luis Taylor
>AMD's fuck ups It happens a lot, and Wendell had to find work around for two of them on his own.
Anthony Gomez
There are tons of Windows servers as well, mostly in SME.
Daniel Jenkins
*Windows fuckups
Nolan Butler
t. sub-80 IQ.
Dominic Murphy
dumb phoneposter
Hudson Bell
Or maybe, just MAYBE, Microsoft doesn't want to muddy up their code with bullshit hacks because AMD cobbled together a CPU made of curry and shit.
Jayden Baker
>on Windows >_>
Josiah Anderson
Utter noob from /v/ here, what is the timeline for new AMD chip & GPU release? I've been waiting 10 years for DMC5, which releases on March 2019 and want to have the best experience during release. Will the next gen release before March'19 or should I just buy the current gen offering?
I don't want to stray away from AMD because my monitor has Freesync
