AMD Ryzen Threadripper 2990WX performance can see up-to 2X Boost with CorePrio tool

by Hilbert Hagedoorn on: 01/03/2019 06:13 PM | source: hexus | 37 comment(s)

There's no denying that AMD has outted a very credible 32-core processor with the Threadripper 2990WX, however in certain conditions and even gaming, performance regresses as most software has no idea what to do with so many threads let alone Windows dealing with assigning the fastest cores towards the right software.

That seems to have been addressed with a 3rd party utility. LevelOneTechs posted a blog identifying key issues with the complicated design and actually have been able to fabricate a solution for the Threadripper performance regressions. LevelOneTechs mentions that programs such as Adobe Premiere, Indigo's Renderer, 7zip as well as games using Nvidia drivers have been seeing patches with varying degrees of success, he tested extensively to see what was going on. While testing the Indigo renderer Wendell noticed that "taking a single thread out of the list of available threads to run the program on (called CPU Affinity) via the windows task manager would improve performance to similar levels as he was seeing on Linux".

They decided to isolate this behavior and then got together with Jeremy Collake at Bitsum to create a utility called CorePrio. In the utility there is a checkbox for 'NUMA Dissociater' which effectively eliminates the Windows vs Linux performance disadvantage by automating the thread tweaking. Once you watch and read the entire documentation, you wonder this: AMD needs to work with Microsoft to get a kernel level fix so that the CPU works as intended. It's a long and deep story though, that is told best by watching the video really, have a read and grab Coreprio here.

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Fox2232
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#5623308 Posted on: 01/03/2019 06:25 PM

I remember this dude. He knows his game. And he is quite right. Windows scheduler sux for both CPU and GPU.
There are registry which should be able to prioritize GPU per application type. And assign particular cores to particular application types.
Neither of them work at all since that build which introduced "Game Mode".

Long time before I did found tool which works as execution wrapper (configured via registry), which allows assignment particular cores to particular application. But some applications would not even start, and some were crashing.

Will have to test this one, maybe it can assign threads way I want. And maybe it would do good for upcoming 3700/3800(X).

clamatac
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Joined: 2016-08-05

#5623313 Posted on: 01/03/2019 06:56 PM

wow, sounds really good

Misha Engel
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#5623324 Posted on: 01/03/2019 07:14 PM

Benchmark results will change with this utility, to bad it took them such a long time.

N0Name
Junior Member

Posts: 16
Joined: 2016-09-08

#5623326 Posted on: 01/03/2019 07:19 PM

Windows is POS and that's me being generous with this description.

Issue: i9-7900X compiling code on Windows 10 Pro 1803 vs Debian 9.6:

Debian -> compile -> mouse movement smooth, no lag
Windows - msvc 2017 x64 -> compile -> mouse movement LAG, sometimes hangs for a half / one sec (doesn't happen all the time depends on compile code etc., but it happens)

IIRC 3-4 years ago (when using i7-4770) same things happened (actually worse) both on Windows and Debian, kernel fixes did fixed this issue, but apparently having multi billion company is not nought.

M$ maybe it's better to focus on bug fixes then harvesting user data ??? (but then again how will You earn these cash ...)

To me Windows day by day became more and more like a game launcher then proper OS.

schmidtbag
Senior Member

Posts: 3717
Joined: 2012-11-10

#5623327 Posted on: 01/03/2019 07:21 PM

Benchmark results will change with this utility, to bad it took them such a long time.

More like:
Too bad MS couldn't figure this out on their own. Even AMD is somewhat responsible, but, there's only so much they can do to force Windows to adapt.

M$ maybe it's better to focus on bug fixes then harvesting user data ??? (but then again how will You earn these cash ...)

I'm by no means a fan of Windows (I don't really use it on any of my PCs anymroe) but that data collection involves bug info. They don't know what's causing bugs if they don't know they exist and the environment that caused them.

Misha Engel
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Posts: 25
Joined: 2017-06-29

#5623332 Posted on: 01/03/2019 07:40 PM

Looking forward to a new review on Guru3D Hilbert.

devastator
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#5623343 Posted on: 01/03/2019 08:05 PM

this doesnt effect 8/16 cores right only 16/32+???

Neo Cyrus
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#5623345 Posted on: 01/03/2019 08:07 PM

this doesnt effect 8/16 cores right only 16/32+???

It depends on the program, in some things it should have some sort of effect on 16 thread CPUs.

schmidtbag
Senior Member

Posts: 3717
Joined: 2012-11-10

#5623346 Posted on: 01/03/2019 08:07 PM

this doesnt effect 8/16 cores right only 16/32+???

Neither. It only affects the 32c/64t Threadripper, though, I figure the 24c/48t would also benefit from this too, since it's the same overall structure but with some disabled cores..

SamuelL421
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#5623350 Posted on: 01/03/2019 08:16 PM

Neither. It only affects the 32c/64t Threadripper, though, I figure the 24c/48t would also benefit from this too, since it's the same overall structure but with some disabled cores..

Should improve performance on any of the TR4 chips with greater than 2 NUMA nodes - so 2970w will also be helped by this. Won't affect the 2950X or previous gen threadripper since they're on 2 nodes.

RzrTrek
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#5623353 Posted on: 01/03/2019 08:27 PM

Where there's a will, there's a way. A job well done. Wendell has outdone himself again.

D3M1G0D
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Posts: 1505
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#5623365 Posted on: 01/03/2019 09:03 PM

More like:
Too bad MS couldn't figure this out on their own. Even AMD is somewhat responsible, but, there's only so much they can do to force Windows to adapt.
It's likely that they could have figured it out, but chose not to devote the time. The WX CPUs are extremely niche so it wouldn't have been priority. If more of these types of CPUs are released into the mainstream then that might encourage MS to act.

MorganX
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Joined: 2015-03-30

#5623377 Posted on: 01/03/2019 09:54 PM

It's likely that they could have figured it out, but chose not to devote the time. The WX CPUs are extremely niche so it wouldn't have been priority. If more of these types of CPUs are released into the mainstream then that might encourage MS to act.

Well, if the Ryzen 9, 16 cores on AM4 rumor is true, MS will need to act sooner rather than later.

Just typing that seems unbelievable. In 2 years AMD will have made 16/32 c/t mainstream on desktops.

schmidtbag
Senior Member

Posts: 3717
Joined: 2012-11-10

#5623381 Posted on: 01/03/2019 09:58 PM

Well, if the Ryzen 9, 16 cores on AM4 rumor is true, MS will need to act sooner rather than later.

Not necessarily. That depends on the CCX configuration and memory controller.

Just typing that seems unbelievable. In 2 years AMD will have made 16/32 c/t mainstream on desktops.

If the rumors are true, I agree. It sure is weird to think about. AMD is definitely stirring up the computer industry.

JamesSneed
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#5623383 Posted on: 01/03/2019 10:19 PM

I wish he also did the testing with Windows Server 2019.

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